{"title":"Distributor Components","description":null,"products":[{"product_id":"marine-distributor-for-gm-l6-194-230-250-292-cid-inline-six-engines-conventional-rotation-mpn-118-26112-1","title":"Sierra Distributor 18-26112-1, Replaces 980902 and Mallory YL512CV, for Most Ford 302 CID V-8 Engines","description":"\u003cp\u003eThe Sierra 18-26112-1 is a marine ignition distributor built for most Ford 302 CID V-8 marine engines. As the timing hub of the ignition system, the distributor routes high-voltage spark from the coil to each cylinder in the correct firing order, so a worn, corroded, or intermittently firing distributor directly translates into rough idle, misfires, hard starting, or a no-start condition. Replacing it with the Sierra 18-26112-1 restores factory-correct ignition timing and spark distribution for the engine platform it is designed for.\u003c\/p\u003e\u003cp\u003eThis distributor is sold as a direct replacement unit and is cross-referenced to the OEM and Mallory part numbers it supersedes, making it straightforward to confirm you are ordering the correct replacement for your Ford 302 CID V-8 marine engine. It weighs 4 pounds as shipped.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-26112-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Most Ford 302 CID V-8 engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282361952\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMost Ford 302 CID V-8 engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e980902\u003c\/li\u003e\n\u003cli\u003eMallory YL512CV\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does the Sierra 18-26112-1 distributor fit?\u003c\/strong\u003e The Sierra 18-26112-1 is built for most Ford 302 CID V-8 marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM and aftermarket part numbers does 18-26112-1 replace?\u003c\/strong\u003e It replaces OEM number 980902 and Mallory number YL512CV, so it can be used as a direct swap for either of those part numbers on a compatible Ford 302 CID V-8 engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this distributor weigh?\u003c\/strong\u003e The Sierra 18-26112-1 distributor weighs 4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-26112-1 a new or remanufactured unit?\u003c\/strong\u003e The Sierra 18-26112-1 is sold as a complete replacement distributor, not a repair kit or individual component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-26112-1 include a cap and rotor?\u003c\/strong\u003e The 18-26112-1 is the distributor assembly itself; specific accessory components should be confirmed against the part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Mallory YL512CV distributor instead of the Sierra 18-26112-1?\u003c\/strong\u003e Yes, the Sierra 18-26112-1 is the direct cross-reference for the Mallory YL512CV on most Ford 302 CID V-8 marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-26112-1 fit a GM V-8 marine engine?\u003c\/strong\u003e No, the Sierra 18-26112-1 is designated for most Ford 302 CID V-8 engines, not GM engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate my distributor needs replacement?\u003c\/strong\u003e Rough idle, misfiring, hard starting, or a no-start condition on a Ford 302 CID V-8 marine engine can indicate a failing distributor like the one the Sierra 18-26112-1 replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-26112-1 distributor?\u003c\/strong\u003e The UPC for the Sierra 18-26112-1 distributor is 808282361952.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-26112-1 compatible with the OEM part numbered 980902?\u003c\/strong\u003e Yes, 18-26112-1 directly replaces OEM part 980902 on most Ford 302 CID V-8 marine engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107800795,"sku":"SIE-18-26112-1","price":314.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-26112-1__87550.1722494352.500.750.jpg?v=1785329155"},{"product_id":"sierra-18-5139-marine-contact-set-points-for-mercury-mariner-outboards-replaces-oem-336-4318a2","title":"Sierra 18-5139 Contact Set - Replaces Mercury\/Mariner 336-4318A2 for Outboard Motors","description":"\u003cp\u003eThe Sierra 18-5139 is a replacement ignition contact set (points) for Mercury\/Mariner outboard motors. Contact sets are a core ignition tune-up component, opening and closing to time the spark at each cylinder; worn, pitted, or misaligned points cause hard starting, rough idle, misfires, and lost power, so replacing them on schedule during a tune-up keeps ignition timing accurate and the engine running smoothly. The set is built with an aluminum construction and finished in white.\u003c\/p\u003e\u003cp\u003eThis is packaged as a direct equivalent to the Mercury Marine OEM contact set: two units of the Sierra 18-5139 equal one OEM 336-4318A2 contact set, so order quantity accordingly to match the OEM package count. It is commonly installed alongside a matching condenser as part of a full ignition tune-up on Mercury\/Mariner outboards. Every Sierra part carries Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5139\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Application:\u003c\/strong\u003e Mercury\/Mariner Outboard Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318367\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Note:\u003c\/strong\u003e 2 x Sierra 18-5139 = 1 x OEM 336-4318A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury\/Mariner outboard motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e336-4318A2\u003c\/li\u003e\n\u003cli\u003e336-4318A4\u003c\/li\u003e\n\u003cli\u003e336-4318A3\u003c\/li\u003e\n\u003cli\u003e336-3948A3\u003c\/li\u003e\n\u003cli\u003e336-3948A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5139 contact set replace?\u003c\/strong\u003e The Sierra 18-5139 is a direct equivalent for Mercury Marine OEM contact sets 336-4318A2, 336-4318A4, 336-4318A3, 336-3948A3, and 336-3948A2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many contact sets come in a package of the 18-5139?\u003c\/strong\u003e Two units of the Sierra 18-5139 equal one OEM 336-4318A2 contact set, so check your engine's original packaging quantity when ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a contact set used for on an outboard motor?\u003c\/strong\u003e A contact set, also called ignition points, opens and closes to time the spark delivered to each cylinder; it is a standard wear item replaced during an ignition tune-up on Mercury\/Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the 18-5139 contact set fit?\u003c\/strong\u003e This contact set is designed for Mercury\/Mariner outboard motors that use the OEM 336-4318A2 series contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5139 contact set made of?\u003c\/strong\u003e The Sierra 18-5139 has an aluminum construction and is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5139 contact set weigh?\u003c\/strong\u003e The Sierra 18-5139 contact set weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5139 a genuine Sierra part or aftermarket equivalent?\u003c\/strong\u003e It is a Sierra-branded aftermarket replacement engineered to the same fit and function as the Mercury Marine OEM contact sets it replaces, and it is covered by Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the condenser at the same time as the 18-5139 contact set?\u003c\/strong\u003e Contact sets are commonly replaced together with a matching condenser as part of a full ignition tune-up, though the condenser is a separate Sierra part number from the 18-5139 contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5139?\u003c\/strong\u003e Each order of Sierra 18-5139 includes the contact set only; remember that two units equal one OEM 336-4318A2 set, so verify quantity needed for your tune-up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the signs a contact set needs replacing?\u003c\/strong\u003e Hard starting, rough idle, misfiring, and reduced power are common symptoms of worn or pitted contact points, and installing the Sierra 18-5139 restores accurate ignition timing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I cross-reference the 18-5139 using an OEM Mercury part number?\u003c\/strong\u003e Yes, the Sierra 18-5139 cross-references to Mercury Marine 336-4318A2, 336-4318A4, 336-4318A3, 336-3948A3, and 336-3948A2.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988199747803,"sku":"SIE-18-5139","price":50.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5139_lg__73349.1558127924.500.750.jpg?v=1785189181"},{"product_id":"sierra-18-5140-ignition-contact-set-for-mercury-mariner-outboards-replaces-398-2202-mpn-18-5140","title":"Sierra 18-5140 Contact Set for Mercury\/Mariner Outboard Motors, 3.9-9.8 HP","description":"\u003cp\u003eThe Sierra 18-5140 Contact Set is a replacement ignition contact set for Mercury and Mariner outboard motors, built to meet or exceed the quality of the original equipment part it replaces. It is designed as part of a routine ignition tune-up, working alongside the correct condenser to keep the points-type ignition system firing reliably. The contact set is constructed of aluminum and stainless steel components for durability in a marine ignition environment.\u003c\/p\u003e\u003cp\u003eThis contact set is fit specific and applies to a range of Mercury\/Mariner outboard horsepower ratings across specific engine serial number ranges, including 3.9 HP, 4 HP, 6 HP, 7.5 HP, and 9.8 HP models. Buyers should confirm their outboard's serial number falls within the applicable range before ordering, since Mercury\/Mariner reused horsepower ratings across different production runs with different ignition components. The 18-5140 pairs with the Sierra 18-5212 condenser and is also available as part of the Sierra 18-5008 tune-up kit for engines in the matching serial number ranges.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999237019\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 contact set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner outboard, 3.9 HP, serial numbers 1655013 to 2498155\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner outboard, 4 HP, serial numbers 2498136 to 2693114\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner outboard, 6 HP, serial numbers 1610265 to 2529894\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner outboard, 7.5 HP, serial numbers 2529895 to 2721150\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner outboard, 9.8 HP, serial numbers 1865776 to 2708898\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 398-2202\u003c\/li\u003e\n\u003cli\u003eGLM 70170\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5140 contact set fit?\u003c\/strong\u003e It fits Mercury\/Mariner outboard motors rated 3.9 HP, 4 HP, 6 HP, 7.5 HP, and 9.8 HP within specific engine serial number ranges, such as 1655013 to 2498155 on the 3.9 HP and 1865776 to 2708898 on the 9.8 HP. Since Mercury reused these horsepower ratings across different production runs, checking your outboard's serial number against the applicable range is the only way to confirm fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5140 the same as Mercury part 398-2202?\u003c\/strong\u003e Yes, the Sierra 18-5140 contact set is designed to be interchangeable with Mercury 398-2202 and GLM 70170, and it is built to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat condenser pairs with the 18-5140 contact set?\u003c\/strong\u003e The Sierra 18-5212 condenser pairs with the 18-5140 contact set across the same applicable engine serial number ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a complete tune-up kit that includes this contact set?\u003c\/strong\u003e Sierra 18-5008 is the tune-up kit that includes this contact set for outboards falling within the matching serial number ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5140 contact set made of?\u003c\/strong\u003e It is made of aluminum and stainless steel components, materials chosen for durability in a marine ignition environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many contact sets come in one package?\u003c\/strong\u003e One Sierra 18-5140 contact set is included per unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5140 contact set weigh?\u003c\/strong\u003e It weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5140 fit any Mercury outboard rated 9.8 HP?\u003c\/strong\u003e Only 9.8 HP Mercury\/Mariner outboards with engine serial numbers between 1865776 and 2708898 use the 18-5140; earlier and later 9.8 HP serial ranges use different Sierra contact sets (18-5153 or 18-5139), so checking the serial number is required before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5140 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-5140 is a Sierra aftermarket contact set engineered to meet or exceed the quality of the original Mercury equipment it replaces, not a Mercury-branded OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-5140 contact set?\u003c\/strong\u003e The contact set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5140 work on 2-stroke or 4-stroke Mercury outboards?\u003c\/strong\u003e The 18-5140 is listed for 4 stroke gasoline Mercury\/Mariner outboard engines in the applicable HP and serial number ranges.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988199780571,"sku":"SIE-18-5140","price":10.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5140_lg__31728.1558127993.500.750.jpg?v=1785188422"},{"product_id":"sierra-18-5141-ignition-contact-set-points-replaces-omc-581207-fits-johnson-evinrude-9-9-40-hp-outboards-1974-1983","title":"Sierra 18-5141 Contact Set, OEM OMC 581207 Equivalent, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-5141 Contact Set is a replacement ignition breaker point set for Johnson\/Evinrude outboard motors, used to restore correct ignition timing and spark output as the original points wear from use. Each package includes one contact set, sized to fit the engine's breaker plate in place of the original equipment contacts. Sierra manufactures this part to meet or exceed the specification of the original equipment part it replaces, making it a straightforward drop-in service item during a routine tune-up rather than a modified or universal-fit substitute.\u003c\/p\u003e\u003cp\u003eThis contact set is designed for use alongside a matching condenser and is intended to be paired with Sierra's tune-up kit for a complete ignition service. It is built for outboard engines running on gasoline and covers engines up to 40 horsepower. Because ignition points are a wear item, replacing them at the recommended service interval helps maintain reliable starting and smooth running on older Johnson\/Evinrude outboards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5141\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e OMC 581207\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange Part Number:\u003c\/strong\u003e GLM 70200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999237026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Outboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 40 Horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 contact set per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 9.9 HP (1974-1976)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 15 HP (1974-1976)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 35 HP (1976)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 40 HP (1974-1976)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 40 Comm (1981-1983)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 581207\u003c\/li\u003e\n\u003cli\u003eGLM 70200\u003c\/li\u003e\n\u003cli\u003e0581207\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5141 contact set fit?\u003c\/strong\u003e The Sierra 18-5141 is designed for Johnson\/Evinrude 9.9 HP (1974-1976), 15 HP (1974-1976), 35 HP (1976), 40 HP (1974-1976), and 40 Comm (1981-1983) outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5141 the same as OMC 581207?\u003c\/strong\u003e Yes, the Sierra 18-5141 is the OEM equivalent of OMC 581207 and is built to meet or exceed the original equipment part's specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this cross with a GLM part number?\u003c\/strong\u003e Yes, the Sierra 18-5141 contact set is interchangeable with GLM 70200.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many contact sets come in a package?\u003c\/strong\u003e One contact set is included per package of the Sierra 18-5141.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the weight of the Sierra 18-5141 contact set?\u003c\/strong\u003e This contact set weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need anything else besides the contact set for a tune-up?\u003c\/strong\u003e The Sierra 18-5141 contact set is intended to be used with Sierra's matching tune-up kit, which supplies the condenser and other components needed for a complete ignition service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or a generic aftermarket copy?\u003c\/strong\u003e The 18-5141 is a genuine Sierra-manufactured contact set, produced to meet or exceed the original equipment part it replaces rather than being a generic substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fuel type and engine type is this contact set made for?\u003c\/strong\u003e The Sierra 18-5141 is made for gasoline-fueled outboard engines, covering applications up to 40 horsepower.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a warranty on the 18-5141 contact set?\u003c\/strong\u003e The Sierra 18-5141 contact set carries a 90-day manufacturer warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this contact set work on a 40 Comm outboard?\u003c\/strong\u003e Yes, the Sierra 18-5141 is listed for the Johnson\/Evinrude 40 Comm (1981-1983) outboard, in addition to the 9.9, 15, 35, and 40 HP models listed.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988199911643,"sku":"SIE-18-5141","price":16.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5141__36667.1737844156.500.750.jpg?v=1785188284"},{"product_id":"sierra-18-5156-ignition-contact-set-points-replaces-omc-580148-fits-evinrude-johnson-colt-junior-outboards-up-to-40-hp","title":"Sierra 18-5156 Ignition Contact Set, OEM 580148 Equivalent, for Evinrude Colt and Jr Outboard Motors","description":"\u003cp\u003eThe Sierra 18-5156 ignition contact set is a metal contact point set built for outboard motor tune-ups and ignition maintenance. It is engineered as a direct equivalent to OMC part number 580148, giving boat owners a reliable way to restore proper ignition timing and engine performance without sourcing hard-to-find original equipment. The contact set is rated for outboard engines up to 40 horsepower running on gasoline and is designed for Evinrude Colt and Jr outboard motors.\u003c\/p\u003e\u003cp\u003eSierra engineers this contact set to meet or exceed the performance of the original equipment part it replaces, using metal construction suited to the vibration, heat, and moisture exposure typical of marine ignition systems. The set is packaged as a single unit count and is intended for use during routine outboard engine tune-up and ignition point replacement. As a Sierra marine part, it is backed by Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5156\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e OMC 580148\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Outboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 40 Horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Engine Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Multi-Coloured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236746\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Uses:\u003c\/strong\u003e Outboard motor engine maintenance and repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eEvinrude Colt and Jr outboard motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 580148\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5156 contact set include?\u003c\/strong\u003e The Sierra 18-5156 ships as a single ignition contact set, listed with a unit count of 1, for outboard engine tune-ups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5156 the same as OMC 580148?\u003c\/strong\u003e Yes, the Sierra 18-5156 is listed as the OEM equivalent to OMC part number 580148.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboard motors does the 18-5156 contact set fit?\u003c\/strong\u003e This contact set is designed for Evinrude Colt and Jr outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5156 contact set weigh?\u003c\/strong\u003e 0.04 pounds is the shipping weight of the Sierra 18-5156 ignition contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum horsepower rating for the Sierra 18-5156?\u003c\/strong\u003e 40 horsepower is the maximum outboard engine rating listed for the Sierra 18-5156 contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5156 contact set made from?\u003c\/strong\u003e The Sierra 18-5156 contact set is made of metal, suited to withstand marine ignition system conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5156 an OEM or aftermarket part?\u003c\/strong\u003e The Sierra 18-5156 is an aftermarket replacement part engineered to meet or exceed the original OMC 580148 equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-5156 contact set come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5156 is covered under Sierra's customer satisfaction warranty like other Sierra marine parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fuel type is the 18-5156 contact set designed for?\u003c\/strong\u003e The Sierra 18-5156 contact set is designed for gasoline-fueled outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-5156 contact set installed?\u003c\/strong\u003e Installing the 18-5156 is a standard ignition point replacement performed during an outboard tune-up; consult your engine's service manual for gap and timing specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5156 contact set?\u003c\/strong\u003e 030999236746 is the UPC listed for the Sierra 18-5156 ignition contact set.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988200108251,"sku":"SIE-18-5156","price":12.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5156_lg__01617.1558128398.500.750.jpg?v=1785188172"},{"product_id":"sierra-18-5199-ignition-condenser-for-johnson-evinrude-outboards-replaces-omc-580321","title":"Sierra 18-5199 Condenser - OMC 580321 Replacement for Johnson\/Evinrude Outboard Engines","description":"\u003cp\u003eThe Sierra 18-5199 Condenser is a direct-fit ignition condenser designed for use with select Johnson\/Evinrude outboard engines. Each package includes one condenser, sized to restore proper ignition point function during a tune-up or point-set replacement. The condenser is manufactured to meet or exceed the specifications of the original equipment part it replaces, giving boat owners a reliable option for keeping their outboard's ignition system firing consistently.\u003c\/p\u003e\u003cp\u003eThis is a fit-specific part, so it is important to confirm the part number against your engine's original component before ordering. The 18-5199 is cross-referenced to the OMC 580321 condenser as well as GLM 70570, making it a straightforward swap for owners replacing a worn or failing OEM condenser on their Johnson\/Evinrude outboard. It ships as a single-count item, ready to install as part of a routine ignition tune-up.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5199\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236845\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e OMC 580321, 0580321, GLM 70570\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for use with select Johnson\/Evinrude outboard engines. Confirm against your engine's original part number before ordering, as this is a fit-specific component.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e580321\u003c\/li\u003e\n\u003cli\u003e0580321\u003c\/li\u003e\n\u003cli\u003eOMC 580321\u003c\/li\u003e\n\u003cli\u003eGLM 70570\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Sierra 18-5199 Condenser designed for?\u003c\/strong\u003e The Sierra 18-5199 Condenser is designed for use with select Johnson\/Evinrude outboard engines. Because it is fit-specific, confirm your engine's original condenser part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5199 condenser replace?\u003c\/strong\u003e It cross-references to OMC 580321, 0580321, and GLM 70570, making it a direct swap for those original condensers on compatible Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many condensers come in the package?\u003c\/strong\u003e One Sierra 18-5199 Condenser is included per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5199 condenser weigh?\u003c\/strong\u003e The condenser weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5199 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-5199 is a Sierra-manufactured replacement condenser, not an OEM Johnson\/Evinrude part, and it is built to meet or exceed the specifications of the original equipment component it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this condenser?\u003c\/strong\u003e A condenser like the 18-5199 is typically replaced during an ignition point tune-up when the original condenser has worn out or is causing misfires or hard starting on Johnson\/Evinrude outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5199 condenser include a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5199 Condenser is backed by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5199 Condenser?\u003c\/strong\u003e The UPC for the Sierra 18-5199 Condenser is 030999236845.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5199 condenser compatible with 4 stroke gasoline outboards?\u003c\/strong\u003e Yes, the 18-5199 condenser is rated for 4 stroke, gasoline-fueled outboard engines within its compatible Johnson\/Evinrude fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-5199 condenser mounted?\u003c\/strong\u003e The Sierra 18-5199 uses a transom mount type configuration as part of the outboard's ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-5199 condenser as part of a full ignition tune-up?\u003c\/strong\u003e Yes, the 18-5199 Condenser is commonly used alongside other ignition components, such as a contact set, when performing a complete point-and-condenser tune-up on compatible Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the 18-5199 condenser fits my outboard?\u003c\/strong\u003e Check your engine's original condenser part number against the cross-references OMC 580321, 0580321, or GLM 70570 to confirm the Sierra 18-5199 is the correct fit-specific replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988200894683,"sku":"SIE-18-5199","price":5.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5199_lg__60870.1558129575.500.750.jpg?v=1785188798"},{"product_id":"marine-ignition-condenser-for-omc-evinrude-johnson-outboards-replaces-oem-581419-fits-15-40-hp-1962-1976-sierra-18-5205","title":"Sierra Condenser 18-5205, Replaces OMC 581419, for Evinrude Outboard Motors 15-40 HP","description":"\u003cp\u003eThe Sierra Condenser 18-5205 is a round, snap-in mount ignition condenser built as a direct replacement for the OMC 581419 condenser used in Evinrude outboard tune-up service. It is rated for an upper temperature of 105 degrees Celsius, allowing it to withstand the heat generated inside the ignition system during normal engine operation. The condenser suppresses voltage spikes across the ignition points, protecting the points from arcing and pitting so the ignition system fires consistently and the points last longer between services.\u003c\/p\u003e\u003cp\u003eThis condenser is a core component of Evinrude outboard tune-up service and is commonly replaced together with points and other ignition wear parts during a scheduled tune-up. It fits Evinrude outboard motors across a range of horsepower ratings, including 15, 18, 20, 25, 28, 33, 35, 40, and 99 HP models, so boat owners should confirm their engine's horsepower and model year against the fitment list before ordering. Weighing 0.02 pounds, it is a small, lightweight replacement part designed to install in the same location and orientation as the original OMC condenser it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5205\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Snap-In Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpper Temperature Rating:\u003c\/strong\u003e 105 Degrees Celsius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236852\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Evinrude Outboard Tune Up Kit component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e OMC 581419\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvinrude 15 HP (1974-1976)\u003c\/li\u003e\n\u003cli\u003eEvinrude 18 HP (1962-1973)\u003c\/li\u003e\n\u003cli\u003eEvinrude 20 HP (1968-1973)\u003c\/li\u003e\n\u003cli\u003eEvinrude 25 HP (1969-1976)\u003c\/li\u003e\n\u003cli\u003eEvinrude 28 HP (1962-1964)\u003c\/li\u003e\n\u003cli\u003eEvinrude 33 HP (1965-1970)\u003c\/li\u003e\n\u003cli\u003eEvinrude 35 HP (1976)\u003c\/li\u003e\n\u003cli\u003eEvinrude 40 HP (1962-1976)\u003c\/li\u003e\n\u003cli\u003eEvinrude 99 HP (1974-1976)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 581419\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5205 condenser replace?\u003c\/strong\u003e It replaces the OMC 581419 condenser, making the Sierra 18-5205 a direct equivalent for that ignition component in Evinrude outboard tune-up service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Evinrude outboards does the 18-5205 condenser fit?\u003c\/strong\u003e Fitment covers Evinrude outboards at 15 HP (1974-1976), 18 HP (1962-1973), 20 HP (1968-1973), 25 HP (1969-1976), 28 HP (1962-1964), 33 HP (1965-1970), 35 HP (1976), 40 HP (1962-1976), and 99 HP (1974-1976); confirm your engine's horsepower and model year match the 18-5205 listing before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and mounting style is this condenser?\u003c\/strong\u003e The 18-5205 is a round condenser with a snap-in mount, designed to install in the same mounting location as the original OMC 581419 unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5205 condenser weigh?\u003c\/strong\u003e It weighs 0.02 pounds, consistent with a small ignition-system component of this type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature is the 18-5205 condenser rated for?\u003c\/strong\u003e The condenser carries an upper temperature rating of 105 degrees Celsius, so it can handle the heat generated near the ignition points during engine operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5205 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-5205 is a Sierra-brand replacement condenser engineered to match the fit and function of the original OMC 581419 condenser, rather than a part sourced from OMC\/Evinrude directly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5205 condenser?\u003c\/strong\u003e The UPC for the Sierra condenser 18-5205 is 030999236852.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a condenser used for in an outboard ignition system?\u003c\/strong\u003e In an Evinrude outboard ignition system, the condenser (Sierra 18-5205) absorbs voltage spikes across the ignition points, reducing arcing so the points stay cleaner and the ignition fires reliably.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5205 condenser sold with points or other tune-up parts?\u003c\/strong\u003e The 18-5205 is sold as a standalone condenser; it is commonly installed alongside other ignition components such as points during a full outboard tune-up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the Sierra 18-5205?\u003c\/strong\u003e Each Sierra 18-5205 order includes one condenser unit, ready to install in place of the OMC 581419 it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988201943259,"sku":"SIE-18-5205","price":6.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5205_lg__90526.1558129670.500.750.jpg?v=1785188100"},{"product_id":"sierra-18-5206-marine-ignition-condenser-replaces-mercury-398-693-chrysler-398-176-fits-mercury-mariner-outboards-up-to-60-hp","title":"Sierra 18-5206 Condenser, Replaces Mercury\/Chrysler 398-176, Outboard Motor","description":"\u003cp\u003eThe Sierra 18-5206 Condenser is a replacement ignition condenser built for outboard motor tune-ups. It is designed as a direct replacement for the original equipment condenser it supersedes, cross-referencing to 398-176. The condenser is constructed from alloy steel for durability in a marine engine environment and is intended for transom mount outboard applications rated up to 60 horsepower, suitable for fresh water use.\u003c\/p\u003e\u003cp\u003eAs part of a proper ignition tune-up, the condenser works alongside points and spark plug wires to help the ignition system deliver a clean, consistent spark. Sierra engineers this condenser to meet or exceed the quality of the original equipment part it replaces, making it a straightforward swap for boat owners servicing their outboard's ignition system. It ships as a single unit and is compatible with gasoline or diesel outboard engines within its rated specifications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5206\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Outboard Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 60 Horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline, Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Fresh Water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318480\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits transom mount outboard motors rated up to 60 horsepower, for gasoline or diesel engines, recommended for fresh water use.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e398-176\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5206 Condenser replace?\u003c\/strong\u003e The Sierra 18-5206 Condenser is a direct cross-reference for OEM part number 398-176.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5206 a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a genuine Sierra-branded condenser, manufactured to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5206 Condenser made from?\u003c\/strong\u003e It is made from alloy steel, chosen for durability in a marine engine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5206 Condenser weigh?\u003c\/strong\u003e The Sierra 18-5206 Condenser weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower range is the Sierra 18-5206 Condenser rated for?\u003c\/strong\u003e It is rated for outboard motors up to 60 horsepower.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-5206 work with gasoline and diesel outboards?\u003c\/strong\u003e Yes, the 18-5206 condenser is rated for both gasoline and diesel outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat mounting type is the Sierra 18-5206 Condenser designed for?\u003c\/strong\u003e This condenser is designed for transom mount outboard motor applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-5206 be used in fresh water only?\u003c\/strong\u003e It is recommended for fresh water use on transom mount outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when you order the Sierra 18-5206?\u003c\/strong\u003e One Sierra 18-5206 Condenser ships as a single unit, ready to install as part of an ignition tune-up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace an ignition condenser like the 18-5206?\u003c\/strong\u003e A condenser helps the ignition system deliver a clean, consistent spark; replacing a worn one with the Sierra 18-5206 is a standard step in an outboard ignition tune-up.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202008795,"sku":"SIE-18-5206","price":4.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5206_lg__24743.1558129720.500.750.jpg?v=1785189038"},{"product_id":"marine-ignition-condenser-for-chrysler-force-outboard-replaces-f12181-1-sierra-18-5241","title":"Sierra 18-5241 Marine Condenser - Replaces Chrysler F12181-1, McCulloch 38850115 - Chrysler\/Force Outboard Ignition","description":"\u003cp\u003eThe Sierra 18-5241 is a marine condenser engineered for the ignition system of Chrysler and Force outboard motors. The condenser is a core component of the points-type ignition system, working alongside the coil and points to suppress arcing at the breaker points and help the engine fire cleanly and consistently. This part is built to meet or exceed original equipment quality, making it a reliable choice when servicing or rebuilding an aging ignition system on compatible Chrysler\/Force outboards.\u003c\/p\u003e\u003cp\u003eThe condenser features an aluminum body and connects via a barb-style outlet connection. It is a compact, precision component measuring 0.39 x 0.39 x 0.39 inches, sized to fit directly into the ignition housing without modification. Because ignition parts are fit specific, buyers should confirm their outboard's engine model or serial number range against the fitment listed below before ordering.\u003c\/p\u003e\u003cp\u003eThe Sierra 18-5241 directly replaces the Chrysler F12181-1 and McCulloch 38850115 condensers, so it is a straightforward swap for outboards originally equipped with either of those OEM part numbers. It is intended for use on Chrysler\/Force outboard ignition systems, including magneto ignition (no alternator) and Magnapower ignition (with alternator and C-D unit) configurations across a range of 6, 7, and 8 horsepower models.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Chrysler Outboard Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Connection Type:\u003c\/strong\u003e Barb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Vehicle Specific Fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler\/Force outboard, 6 HP - models 60HA, 62\/63HA-HH, H9M\u003c\/li\u003e\n\u003cli\u003eChrysler\/Force outboard, 6 HP - models 64HA-HC, H0F, H1G, H2H, H8D, H9E\u003c\/li\u003e\n\u003cli\u003eChrysler\/Force outboard, 7 HP - models 72\/73HA\u003c\/li\u003e\n\u003cli\u003eChrysler\/Force outboard, 8 HP - models 82\/83HA-HH, H9K\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler F12181-1\u003c\/li\u003e\n\u003cli\u003eMcCulloch 38850115\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5241 condenser fit?\u003c\/strong\u003e It fits Chrysler\/Force outboard motors rated 6, 7, and 8 horsepower, covering models 60HA, 62\/63HA-HH, H9M, 64HA-HC, H0F, H1G, H2H, H8D, H9E, 72\/73HA, 82\/83HA-HH, and H9K. Since ignition parts are fit specific, confirm your engine's model designation before ordering the 18-5241.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5241 a direct replacement for the Chrysler F12181-1 condenser?\u003c\/strong\u003e Yes, the 18-5241 directly replaces the Chrysler F12181-1 condenser as well as the McCulloch 38850115, so it can be installed as a like-for-like swap on compatible outboard ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5241 work with McCulloch part 38850115?\u003c\/strong\u003e The Sierra 18-5241 is interchangeable with McCulloch 38850115, meaning it can be used as a replacement wherever that original part number was specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the condenser body made of?\u003c\/strong\u003e The 18-5241 condenser has an aluminum body, which provides durability for the compact housing that mounts within the outboard's ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the condenser connected in the ignition system?\u003c\/strong\u003e The Sierra 18-5241 uses a barb-style outlet connection to attach into the ignition wiring circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5241?\u003c\/strong\u003e The condenser measures 0.39 x 0.39 x 0.39 inches, a compact size designed to fit within the existing ignition housing of compatible Chrysler\/Force outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5241 condenser weigh?\u003c\/strong\u003e It weighs 0.03 pounds, consistent with its small, compact construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this condenser meet OEM quality standards?\u003c\/strong\u003e The Sierra 18-5241 is built to meet or exceed original equipment quality, making it suitable as a replacement part for the ignition systems it is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this condenser used in magneto ignition or Magnapower ignition systems?\u003c\/strong\u003e The 18-5241 is used in Chrysler\/Force outboard ignition systems, which include both magneto ignition (no alternator) and Magnapower ignition (with alternator and C-D unit) configurations depending on the specific engine model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5241 fit any outboard brand, or is it fit specific?\u003c\/strong\u003e The Sierra 18-5241 is fit specific to certain Chrysler\/Force outboard models rated 6, 7, and 8 horsepower; buyers should check their part numbers against the listed fitment to ensure proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-5241?\u003c\/strong\u003e Each order includes one Sierra 18-5241 marine condenser.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202303707,"sku":"SIE-18-5241","price":13.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5241__87240.1558185339.500.750.jpg?v=1785188118"},{"product_id":"distributor-cap-for-pleasurecraft-mp-5-0l-5-7l-marine-engines-2002-2005-replaces-ra108009-sierra-18-5244-2","title":"Sierra Distributor Cap 18-5244-2, Replaces RA108009, Fits MP 5.0L and 5.7L (2002-05)","description":"\u003cp\u003eThe Sierra 18-5244-2 is a replacement distributor cap engineered for MP 5.0L and 5.7L engine models (2002-05). Molded from durable plastic in black, the cap uses a twist-on closure design that seats securely over the distributor housing to maintain a reliable ignition connection. As the distributor cap wears, cracks, or develops carbon tracking, spark distribution to the cylinders becomes inconsistent, leading to misfires, hard starting, or rough idle -- installing a fresh 18-5244-2 restores proper high-voltage routing from the ignition coil to each spark plug wire terminal. This cap is a direct equivalent for OEM number RA108009, so it installs in place of the original part without modification. It is built to the same fit and function as the original equipment cap it replaces, making it a straightforward swap during a routine tune-up or ignition system service. Measuring 3.5 x 7 x 4.5 inches, the cap is sized to match the factory distributor assembly on applicable MP 5.0L and 5.7L engines. Keeping the distributor cap in good condition is a core part of marine engine ignition maintenance, since moisture intrusion and vibration in a marine environment accelerate wear on this component compared to automotive use.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5244-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 3.5 x 7 x 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Models MP 5.0L and 5.7L (2002-05)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e RA108009\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eModels MP 5.0L and 5.7L (2002-05)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eRA108009\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5244-2 distributor cap fit?\u003c\/strong\u003e The 18-5244-2 is designed for MP 5.0L and 5.7L engine models (2002-05), matching the distributor assembly used on those applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5244-2 a direct replacement for RA108009?\u003c\/strong\u003e Yes, the Sierra 18-5244-2 replaces OEM number RA108009 and installs as a direct equivalent on MP 5.0L and 5.7L engines (2002-05).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the distributor cap made from?\u003c\/strong\u003e The 18-5244-2 distributor cap is made from black plastic with a twist-on closure that seats securely over the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5244-2 distributor cap?\u003c\/strong\u003e This Sierra distributor cap measures 3.5 x 7 x 4.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5244-2 distributor cap weigh?\u003c\/strong\u003e The 18-5244-2 weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e A twist-on closure is used, so the 18-5244-2 turns and locks into place over the distributor body rather than requiring separate fasteners.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate the distributor cap needs replacement?\u003c\/strong\u003e Misfires, hard starting, or rough idle on an engine running MP 5.0L or 5.7L can indicate the distributor cap is cracked, worn, or carbon-tracked and due for replacement with a part like the 18-5244-2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e The 18-5244-2 order includes one distributor cap; it does not include a rotor or wires unless listed separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or a generic aftermarket cap?\u003c\/strong\u003e The 18-5244-2 is a Sierra-branded distributor cap manufactured to fit MP 5.0L and 5.7L engines (2002-05) as a replacement for RA108009.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this cap be used for routine tune-up service?\u003c\/strong\u003e Yes, replacing the distributor cap with the 18-5244-2 during a tune-up helps maintain consistent spark distribution on MP 5.0L and 5.7L engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202369243,"sku":"SIE-18-5244-2","price":80.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5244__24386.1692192272.500.750.jpg?v=1785188012"},{"product_id":"sierra-18-5243-distributor-cap-for-mercruiser-4-3l-v-6-alpha-bravo-sterndrive-replaces-oem-888731-898253t23","title":"Sierra Distributor Cap 18-5243, Replaces 3859019, for Delco HVS V-6 Distributors","description":"\u003cp\u003eThe Sierra 18-5243 is a replacement distributor cap engineered for engines equipped with a Delco HVS distributor with an extended bracket, specifically Delco HVS V-6 distributors. It is a direct fit for the ignition system, restoring a proper seal against moisture and delivering reliable spark distribution to keep the engine firing correctly on every cylinder. The cap is finished in white with a twist-on closure for a secure, tool-free installation and removal during routine maintenance.\u003c\/p\u003e\u003cp\u003eThis distributor cap is a wear item that should be inspected and replaced when it shows cracking, carbon tracking, corrosion at the terminals, or a compromised twist-on seal, all of which can cause misfires, hard starting, or rough idle. Installing the correct Sierra 18-5243 cap for a Delco HVS V-6 distributor with extended bracket ensures the terminals and cap geometry line up properly with the rotor and ignition wiring, so the ignition system performs as designed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5243\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 3.6 x 7.1 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.68 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282167547\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Engines equipped with Delco HVS distributor with extended bracket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 3859019\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDelco HVS V-6 Distributors (engines equipped with Delco HVS distributor with extended bracket)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3859019\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5243 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5243 fits engines equipped with a Delco HVS distributor with an extended bracket, specifically Delco HVS V-6 distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5243 the same cap used on V-8 Delco HVS distributors?\u003c\/strong\u003e No, the 18-5243 is built for Delco HVS V-6 distributors; a V-8 Delco HVS distributor uses a separate cap part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the Sierra 18-5243 replace?\u003c\/strong\u003e It replaces OEM number 3859019.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-5243 distributor cap?\u003c\/strong\u003e It is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-5243 secured to the distributor?\u003c\/strong\u003e It uses a twist-on closure, allowing it to be installed and removed without additional tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5243?\u003c\/strong\u003e The cap measures 3.6 x 7.1 x 5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5243 distributor cap weigh?\u003c\/strong\u003e It weighs 0.68 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many caps come in a Sierra 18-5243 purchase?\u003c\/strong\u003e One distributor cap (unit count of 1) is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the Sierra 18-5243 distributor cap be replaced?\u003c\/strong\u003e Replace the 18-5243 when the cap shows cracking, carbon tracking, terminal corrosion, or a worn twist-on seal, since any of these can cause misfires or hard starting on a Delco HVS V-6 distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5243 a genuine aftermarket replacement or a used OEM part?\u003c\/strong\u003e The 18-5243 is a new aftermarket distributor cap manufactured by Sierra as a direct replacement for OEM number 3859019.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202762459,"sku":"SIE-18-5243","price":74.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5243_lg__64189.1558127563.500.750.jpg?v=1785188376"},{"product_id":"sierra-18-5245-distributor-rotor-for-delco-hvs-distributors-replaces-pleasurecraft-r103011-mercury-884790-fits-mp-5-0l-5-7l-2002-2005","title":"Sierra Rotor 18-5245 for MerCruiser 4.3L\/5.0L\/5.7L\/6.2L MPI Engines 2001 and Newer, Replaces Mercury Marine 884790","description":"\u003cp\u003eThe Sierra 18-5245 is a distributor rotor engineered as a direct replacement for Delco HVS distributor systems used on MerCruiser MCM\/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI engines built 2001 and newer with ECM 555 serial numbers 0M300000 and up. It is also correct for PleasureCraft MP 5.0L and 5.7L engine models from 2002-05. The rotor is a single-item component sold individually and mounts inside the distributor cap, transferring spark from the coil to the correct spark plug wire terminal in firing order as the distributor shaft rotates.\u003c\/p\u003e\u003cp\u003eThis is an OEM-equivalent part, cross-referencing to Mercury Marine 884790 and PleasureCraft R103011, so it installs and performs the same as the factory original without modification. Because ignition timing accuracy depends on a properly seated, correctly conducting rotor, replacing a worn, cracked, or corroded rotor at tune-up intervals helps maintain reliable spark delivery and smooth engine running. At 0.11 pounds, it is a compact, easy-to-handle service part suited for routine tune-up or distributor cap-and-rotor replacement jobs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5245\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Delco HVS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 884790, PleasureCraft R103011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282167561\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.11 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser MCM\/MIE 4.3L, 5.0L, 5.7L \u0026amp; 6.2L MPI engines with ECM 555 S\/N 0M300000 \u0026amp; up, 2001 and newer\u003c\/li\u003e\n\u003cli\u003ePleasureCraft MP 5.0L and 5.7L models, 2002-05\u003c\/li\u003e\n\u003cli\u003eDelco HVS distributors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 884790\u003c\/li\u003e\n\u003cli\u003ePleasureCraft R103011\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5245 rotor fit?\u003c\/strong\u003e The Sierra 18-5245 fits MerCruiser MCM\/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI engines built 2001 and newer with ECM 555 serial numbers 0M300000 and up, as well as PleasureCraft MP 5.0L and 5.7L engine models from 2002-05.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5245 rotor an OEM part or an aftermarket equivalent?\u003c\/strong\u003e It is an aftermarket rotor built as a direct equivalent to Mercury Marine 884790 and PleasureCraft R103011, so it fits and functions the same as the original factory rotor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor cross-reference to Mercury Marine 884790?\u003c\/strong\u003e Yes, part number 18-5245 is the correct cross-reference for Mercury Marine 884790.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5245 compatible with PleasureCraft R103011?\u003c\/strong\u003e Yes, the 18-5245 rotor is a direct match for PleasureCraft part R103011 on applicable MP 5.0L and 5.7L engines from 2002-05.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat distributor type does this rotor work with?\u003c\/strong\u003e The 18-5245 is designed for Delco HVS distributors used on the listed MerCruiser and PleasureCraft engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5245 rotor weigh?\u003c\/strong\u003e The Sierra 18-5245 rotor weighs 0.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rotors come in a package?\u003c\/strong\u003e The 18-5245 is sold as a single item, one rotor per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should a distributor rotor like the 18-5245 be replaced?\u003c\/strong\u003e A distributor rotor should be replaced when it shows wear, cracking, or corrosion on the contact tip, typically during a tune-up alongside the distributor cap, to maintain consistent spark delivery on MerCruiser and PleasureCraft engines using Delco HVS distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5245 fit MerCruiser engines older than 2001?\u003c\/strong\u003e No, the 18-5245 rotor is specified for MerCruiser MCM\/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI engines from 2001 and newer with ECM 555 serial numbers 0M300000 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-5245?\u003c\/strong\u003e Each order includes one Sierra 18-5245 distributor rotor.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202893531,"sku":"SIE-18-5245","price":16.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5245_lg__82393.1558127846.500.750.jpg?v=1785188291"},{"product_id":"marine-contact-set-points-for-gm-4-cylinder-single-point-ignition-replaces-mercruiser-34235-omc-380538-sierra-18-5311","title":"Sierra 18-5311 Contact Set for Mercruiser 110, 120, 140, 2.5L, 3.0L I\/O Engines - Replaces Mercruiser 34235","description":"\u003cp\u003eThe Sierra 18-5311 is a marine ignition contact set (breaker points) built for contact-controlled distributor ignition systems on Mercruiser stern drive engines, standard rotation, excluding Thunderbolt ignition. It is the correct contact set for the Mercruiser 110, 120, and 140 models, as well as the 2.5L and 3.0L L4 engines, matching the tune-up kit and distributor components used across these engine families. As the wear item that opens and closes the primary ignition circuit inside the distributor, the contact set directly affects spark timing and engine starting reliability, so it is a standard replacement during a tune-up or when points become pitted, worn, or out of adjustment.\u003c\/p\u003e\u003cp\u003eConstructed with a glass-reinforced base and finished in white, the 18-5311 is built to meet or exceed original equipment quality so it drops into the distributor housing in place of the factory points without modification. It is sold as a single contact set (quantity of 1) and is intended to be paired with the matching rotor, distributor cap, coil, and spark plug wires for a complete tune-up on these applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5311\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236609\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Contact-controlled distributor, standard rotation, excludes Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser 110, 120, 140 (153\/181 cid L4), 2.5L, and 3.0L L4 I\/O engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Chris-Craft 16.69-00049; GLM 70020; Mallory 9-29006; Mercruiser 34235, 34235T, 35637; OMC 380538\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 110 (153 cid\/L4), model years 1963-1966, serial numbers 1537370-2044033\u003c\/li\u003e\n\u003cli\u003eMercruiser 120 (153 cid\/L4), model years 1964-1986, serial numbers 1666601-B531853\u003c\/li\u003e\n\u003cli\u003eMercruiser 2.5L (153 cid\/L4), model years 1987-1989, serial numbers B531854-C853255\u003c\/li\u003e\n\u003cli\u003eMercruiser 140 (181 cid\/L4), model years 1968-1986, serial numbers 2508261-B450800\u003c\/li\u003e\n\u003cli\u003eMercruiser 3.0L (181 cid\/L4), model years 1987-1989, serial numbers B450801-C856558\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChris-Craft 16.69-00049\u003c\/li\u003e\n\u003cli\u003eGLM 70020\u003c\/li\u003e\n\u003cli\u003eMallory 9-29006\u003c\/li\u003e\n\u003cli\u003eMercruiser 34235\u003c\/li\u003e\n\u003cli\u003eMercruiser 34235T\u003c\/li\u003e\n\u003cli\u003eMercruiser 35637\u003c\/li\u003e\n\u003cli\u003eOMC 380538\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5311 contact set fit?\u003c\/strong\u003e The 18-5311 fits Mercruiser 110 (1963-1966), 120 (1964-1986), 140 (1968-1986), 2.5L (1987-1989), and 3.0L (1987-1989) I\/O engines, all 153 or 181 cid L4 models using a contact-controlled distributor with standard rotation (not Thunderbolt ignition).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-5311 the same as Mercruiser part 34235?\u003c\/strong\u003e Yes, Sierra 18-5311 is a direct equivalent to Mercruiser 34235 and 34235T, as well as Chris-Craft 16.69-00049, GLM 70020, Mallory 9-29006, Mercruiser 35637, and OMC 380538.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5311 contact set weigh?\u003c\/strong\u003e The Sierra 18-5311 contact set weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the contact set made of?\u003c\/strong\u003e The 18-5311 contact set uses a glass-reinforced base finished in white, matching the color and construction of the original equipment contact points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this contact set work with Thunderbolt ignition systems?\u003c\/strong\u003e No, the 18-5311 is designed for contact-controlled distributor systems with standard rotation and specifically excludes Thunderbolt ignition applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the 18-5311?\u003c\/strong\u003e Each order includes one Sierra 18-5311 contact set, sold as a single unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace other ignition parts along with the contact set?\u003c\/strong\u003e For a complete tune-up on Mercruiser 110, 120, 140, 2.5L, or 3.0L engines, the contact set is typically replaced along with the matching rotor, distributor cap, coil, and spark plug wires for that model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-5311 an OEM or aftermarket part?\u003c\/strong\u003e The 18-5311 is an aftermarket replacement built to meet or exceed original equipment quality, cross-referencing directly to OEM numbers like Mercruiser 34235 and OMC 380538.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-5311 fit a Mercruiser 3.0L from 1990 or later?\u003c\/strong\u003e No, the 18-5311 contact set applies to the 3.0L 181\/L4 engine for model years 1987-1989; later 3.0L serial ranges use a different contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-5311 contact set?\u003c\/strong\u003e The Sierra 18-5311 contact set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my contact set needs replacing?\u003c\/strong\u003e Pitted, burned, or misadjusted contact points on the distributor commonly cause hard starting or rough idle, and replacing the 18-5311 contact set is the standard fix during a tune-up on these Mercruiser applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988208791771,"sku":"SIE-18-5311","price":12.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5311_lg__86309.1558128338.500.750.jpg?v=1785189098"},{"product_id":"sierra-18-5303-marine-ignition-contact-set-points-for-prestolite-conventional-ignition-replaces-omc-980893-mercury-marine-392-6325-fits-ford-gm-4-6-8-cyl-engines","title":"Sierra Contact Set 18-5303, Replaces Mercury Marine 392-6325, for GM 305\/350\/454 \u0026 Ford 302 V8 and 3.8L V6 Marine Engines with Prestolite Ignition","description":"\u003cp\u003eThe Sierra 18-5303 Contact Set is a replacement ignition point set for marine engines equipped with Prestolite conventional ignition distributors. It is engineered to meet or exceed the performance of the original equipment part it replaces, and is built to hold up to the vibration, heat, and moisture-heavy conditions of the marine environment. The contact set works with Ford and GM 4, 6, and 8 cylinder engines that use a Prestolite conventional ignition system, and is a key component in a full ignition tune-up alongside a matching condenser, distributor cap, and rotor.\u003c\/p\u003e\u003cp\u003eSierra cross-references the 18-5303 against distributor housings IBM-7014A, IBM-7011, IBM-7013, and IBM-7007\/A, covering 3.8L six-cylinder engines as well as 305, 350, and 454 cubic-inch GM V8 engines and the Ford 302 V8. It carries a compact, machined construction sized to fit directly into the OEM distributor housing without modification. Sierra supplies this part to OEM engine manufacturers and boat builders as part of its ignition parts line, and it is backed by Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Contact Set (Ignition Points)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318701\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System:\u003c\/strong\u003e Prestolite Conventional Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Distributor Numbers:\u003c\/strong\u003e IBM-7014A, IBM-7011, IBM-7013, IBM-7007, A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1984-88, 6 Cylinder 3.8L Engine, Distributor No. IBM-7014A\u003c\/li\u003e\n\u003cli\u003e1976-82, 8 Cylinder 305, 350, 454 Engine, Distributor No. IBM-7011\u003c\/li\u003e\n\u003cli\u003e1983-88, 8 Cylinder 305, 350, 454 Engine, Distributor No. IBM-7013\u003c\/li\u003e\n\u003cli\u003e1975-86, 8 Cylinder Ford 302 Engine, Distributor No. IBM-7007, A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2808870\u003c\/li\u003e\n\u003cli\u003e855846-2\u003c\/li\u003e\n\u003cli\u003e987136\u003c\/li\u003e\n\u003cli\u003e987894\u003c\/li\u003e\n\u003cli\u003eChrysler Inboard 2421173\u003c\/li\u003e\n\u003cli\u003eCrusader 41058\u003c\/li\u003e\n\u003cli\u003eMercury Marine 392-6325\u003c\/li\u003e\n\u003cli\u003eOMC 980893\u003c\/li\u003e\n\u003cli\u003ePleasurecraft R114002\u003c\/li\u003e\n\u003cli\u003eVolvo 835705-5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5303 contact set fit?\u003c\/strong\u003e The Sierra 18-5303 fits 6-cylinder 3.8L marine engines using distributor IBM-7014A, 8-cylinder 305, 350, and 454 cubic-inch engines using distributors IBM-7011 or IBM-7013, and Ford 302 V8 engines using distributor IBM-7007 or IBM-7007A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5303 compatible with Prestolite ignition systems?\u003c\/strong\u003e Yes, the 18-5303 contact set is designed for Ford and GM 4, 6, and 8 cylinder marine engines equipped with a Prestolite conventional ignition distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-5303 cross-reference to?\u003c\/strong\u003e It cross-references to OEM numbers 2808870, 855846-2, 987136, and 987894, as well as Chrysler Inboard 2421173, Crusader 41058, Mercury Marine 392-6325, OMC 980893, Pleasurecraft R114002, and Volvo 835705-5.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5303 contact set weigh?\u003c\/strong\u003e The Sierra 18-5303 contact set weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5303?\u003c\/strong\u003e The 18-5303 measures 0.39 x 0.39 x 0.39 inches, a compact point set sized to install directly inside the Prestolite distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-5303 is a genuine Sierra-branded contact set, manufactured to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other parts should be replaced along with the contact set during a tune-up?\u003c\/strong\u003e A full ignition tune-up on these Prestolite-equipped engines typically also replaces the matching condenser, distributor cap, and rotor alongside the 18-5303 contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5303 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5303 is covered under Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the finish or construction of the 18-5303 contact points?\u003c\/strong\u003e The contact points on the 18-5303 have a machined finish for a precise fit within the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5303 fit a Ford 302 marine engine?\u003c\/strong\u003e Yes, the 18-5303 is listed as compatible with Ford 302 V8 engines using distributor number IBM-7007 or IBM-7007A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat distributor housings use the 18-5303 contact set?\u003c\/strong\u003e The 18-5303 is used with distributor housings IBM-7014A, IBM-7011, IBM-7013, and IBM-7007\/IBM-7007A.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988208824539,"sku":"SIE-18-5303","price":11.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5303_lg__68416.1558127972.500.750.jpg?v=1785188892"},{"product_id":"sierra-18-5313-1-marine-distributor-for-gm-v8-engines-conventional-rotation-replaces-mallory-yl624av","title":"Sierra Distributor 18-5313-1, Conventional Ignition for GM 305\/350\/454 V8 Marine Engines","description":"\u003cp\u003eThe Sierra 18-5313-1 is a conventional (points-type) ignition distributor built for GM 305, 350, and 454 cubic-inch V8 marine engines. It is designed as a direct fit for these inboard\/sterndrive V8 applications, delivering the ignition timing and spark distribution these engines require for reliable starting and smooth running. As a conventional distributor, it works with a traditional points-and-condenser ignition setup rather than an electronic ignition module, making it a straightforward replacement for boat owners maintaining an original-style ignition system.\u003c\/p\u003e\u003cp\u003eThis distributor is cataloged for GM 305, 350, and 454 cid V8 engine applications across two documented model ranges: 1976-82 and 1983-88. Confirm your engine displacement and model year against your boat's engine tag before ordering, since distributor fitment is specific to engine family and year range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5313-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Conventional Ignition Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.58 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282349752\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e GM 305, 350, 454 cid V8 engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Years:\u003c\/strong\u003e 1976-82, 1983-88\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional (points-type)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1976-82, 8-cylinder, 305\/350\/454 cid engine\u003c\/li\u003e\n\u003cli\u003e1983-88, 8-cylinder, 305\/350\/454 cid engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5313-1 distributor fit?\u003c\/strong\u003e The Sierra 18-5313-1 is cataloged for GM 305, 350, and 454 cubic-inch V8 marine engines, covering 1976-82 and 1983-88 model year applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5313-1 a conventional or electronic ignition distributor?\u003c\/strong\u003e It is a conventional, points-type ignition distributor, designed for engines running a traditional points-and-condenser ignition setup rather than electronic ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5313-1 distributor weigh?\u003c\/strong\u003e The Sierra 18-5313-1 distributor weighs 3.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this distributor work on a 1980 model year GM 305 or 350 V8 marine engine?\u003c\/strong\u003e Yes, the Sierra 18-5313-1 is cataloged for the 1976-82 model range for GM 305, 350, and 454 cid V8 engines, which covers a 1980 model year application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5313-1 fit a 454 cid engine as well as the 305 and 350?\u003c\/strong\u003e Yes, Sierra part number 18-5313-1 is listed for GM 305, 350, and 454 cubic-inch V8 engine applications in both the 1976-82 and 1983-88 ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5313-1?\u003c\/strong\u003e You receive one Sierra 18-5313-1 conventional ignition distributor unit; points, cap, rotor, and condenser are not documented as included with this part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5313-1 a direct OEM replacement?\u003c\/strong\u003e The 18-5313-1 is Sierra's part number for this conventional ignition distributor application on GM 305\/350\/454 V8 marine engines; verify your existing distributor's application before ordering to ensure a correct match.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5313-1 distributor?\u003c\/strong\u003e The UPC for the Sierra 18-5313-1 conventional ignition distributor is 808282349752.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-5313-1 on a Ford marine V8 engine?\u003c\/strong\u003e No, the Sierra 18-5313-1 is cataloged specifically for GM 305, 350, and 454 cid V8 engine applications, not Ford engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system type does this distributor use?\u003c\/strong\u003e The 18-5313-1 uses a conventional points-and-condenser ignition system, as opposed to a breakerless electronic ignition design.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988208857307,"sku":"SIE-18-5313-1","price":460.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5313-1__01544.1722383749.500.750.jpg?v=1785189076"},{"product_id":"sierra-18-5305-ignition-contact-set-points-for-volvo-penta-stern-drive-replaces-volvo-penta-1306169-243799-243460","title":"Sierra 18-5305 Contact Set, Replaces Volvo Penta 243799 1306169 243460, Bosch 4-Cylinder I\/O Ignition","description":"\u003cp\u003eThe Sierra 18-5305 is a contact set (ignition points) built for Bosch 4-cylinder I\/O ignition systems used on Volvo Penta stern drives. It is a precision-machined replacement component designed to meet or exceed the quality of the original equipment part it replaces, restoring proper point gap and dwell for reliable spark timing. This contact set is one of the individual components in Sierra's Volvo Penta tune-up kit lineup, alongside the matching 18-5349 condenser and 18-5428 rotor, and is sold here as a standalone part for owners replacing just the points.\u003c\/p\u003e\u003cp\u003eContact sets are a wear item in traditional breaker-point ignition systems, and swapping in a fresh set at regular intervals helps prevent hard starting, misfires, and rough idle caused by pitted or worn contacts. The Sierra 18-5305 is manufactured to original dimensions and mounting geometry so it installs the same way as the OEM part it replaces, with no modification required.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5305\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Contact Set (Ignition Points)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Ignition System:\u003c\/strong\u003e Bosch 4-cylinder I\/O - Volvo Penta\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 243799, 1306169, 243460\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318725\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eVolvo Penta stern drive (I\/O) applications using a Bosch 4-cylinder ignition system\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e243799\u003c\/li\u003e\n\u003cli\u003e1306169\u003c\/li\u003e\n\u003cli\u003e243460\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5305 fit?\u003c\/strong\u003e The Sierra 18-5305 contact set is designed for Bosch 4-cylinder I\/O ignition systems used on Volvo Penta stern drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5305 replace?\u003c\/strong\u003e It replaces Volvo Penta part numbers 243799, 1306169, and 243460.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5305 a genuine Volvo Penta part?\u003c\/strong\u003e No, it is a Sierra-manufactured aftermarket contact set engineered to meet or exceed the quality of the original Volvo Penta ignition points it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with part number 18-5305?\u003c\/strong\u003e This listing is for the contact set (ignition points) only; it does not include the matching Sierra 18-5349 condenser or 18-5428 rotor, which are sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5305 weigh?\u003c\/strong\u003e The Sierra 18-5305 contact set weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5305 contact set?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5305 work with a different ignition system?\u003c\/strong\u003e The 18-5305 contact set is built specifically for Bosch 4-cylinder I\/O ignition systems on Volvo Penta stern drives; check your engine's ignition system before ordering to ensure proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I replace the contact set in a breaker-point ignition system?\u003c\/strong\u003e Contact sets wear and pit over time, which can cause hard starting, misfiring, and rough idle; installing a fresh Sierra 18-5305 restores correct point gap and dwell for reliable spark timing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5305 require modification to install?\u003c\/strong\u003e No, the Sierra 18-5305 is manufactured to original dimensions and mounting geometry so it installs the same way as the OEM contact set it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-5305 have?\u003c\/strong\u003e The 18-5305 contact set has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5305 part of a larger tune-up kit?\u003c\/strong\u003e Yes, the 18-5305 contact set pairs with the Sierra 18-5349 condenser and 18-5428 rotor as part of a Volvo Penta ignition tune-up, though each is sold under its own part number.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988208890075,"sku":"SIE-18-5305","price":15.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5305_lg__33165.1558128039.500.750.jpg?v=1785188629"},{"product_id":"marine-ignition-condenser-for-mercruiser-v-8-with-mallory-conventional-ignition-replaces-oe-16-69-00040-sierra-18-5338","title":"Sierra Condenser 18-5338 for Mercruiser V-8 Engines with Mallory Conventional Ignition","description":"\u003cp\u003eThe Sierra 18-5338 is a marine ignition condenser designed for Mercruiser V-8 engines equipped with Mallory conventional ignition, covering Mallory distributor applications from 1998 and earlier. The condenser is a core electrical component of a points-type ignition distributor, working alongside the contact set to suppress arcing at the breaker points and help maintain a clean, consistent spark as the engine runs. A rectangular, flange-mount design allows it to install directly onto the distributor housing in the factory location, making it a straightforward replacement during a tune-up or when restoring reliable ignition performance on an aging conventional-ignition setup.\u003c\/p\u003e\u003cp\u003eLike other Sierra electrical parts, the 18-5338 is built to meet or exceed the performance of the original equipment part it replaces, and Sierra manufactures it to marine-duty standards suited to the humidity, vibration, and corrosion exposure of an engine compartment. It ships as a single condenser unit, ready to swap in place of a worn or failing original condenser without modification.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5338\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Rectangular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Flange Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236623\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser V-8 engines with Mallory conventional ignition\u003c\/li\u003e\n\u003cli\u003eAll Mallory distributor applications, 1998 and earlier\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5338 condenser fit?\u003c\/strong\u003e The Sierra 18-5338 condenser fits Mercruiser V-8 engines equipped with Mallory conventional ignition, covering all Mallory distributor applications from 1998 and earlier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5338 a genuine Sierra part or aftermarket?\u003c\/strong\u003e 18-5338 is Sierra's own manufacturer part number, not a third-party aftermarket clone, and Sierra states its electrical parts meet or exceed the original equipment component they replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and mounting style is this condenser?\u003c\/strong\u003e This condenser has a rectangular body and a flange mount design, allowing it to bolt directly to the distributor housing in the original factory position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5338 condenser weigh?\u003c\/strong\u003e The Sierra 18-5338 condenser weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e Ordering the Sierra 18-5338 gets you one condenser unit, sold individually rather than as part of a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this condenser work with a Mercruiser V-8 that has electronic ignition instead of points?\u003c\/strong\u003e No, the 18-5338 condenser is built specifically for Mallory conventional (points-type) ignition on Mercruiser V-8 engines, not electronic ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5338 replace the original condenser on a 1998 or older Mallory distributor?\u003c\/strong\u003e Yes, the 18-5338 is intended as a direct replacement condenser for Mallory distributor applications dated 1998 and earlier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a condenser used for in a marine ignition distributor?\u003c\/strong\u003e In a points-type distributor like those using Mallory conventional ignition, the condenser (the 18-5338 in this case) suppresses arcing across the breaker points so the ignition system produces a cleaner, more consistent spark.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5338 condenser sold with related tune-up parts like the contact set, rotor, or cap?\u003c\/strong\u003e No, the 18-5338 is the condenser only; the contact set, rotor, and cap for the same distributor line are separate Sierra part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5338 condenser?\u003c\/strong\u003e The UPC for the Sierra 18-5338 condenser is 030999236623.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209053915,"sku":"SIE-18-5338","price":8.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5338_lg__28010.1558128815.500.750.jpg?v=1785188526"},{"product_id":"marine-contact-set-ignition-points-for-mallory-conventional-ignition-replaces-pleasurecraft-r114001-r114004-fits-ford-gm-8-cyl-inboards-sierra-18-5314","title":"Sierra Marine Contact Set 18-5314 for Chrysler Inboard, Crusader, Ford and GM Mallory Ignition Engines","description":"\u003cp\u003eThe Sierra 18-5314 is a marine contact set (ignition breaker points) engineered as a direct cross-reference replacement for Chrysler Inboard and Crusader marine engines fitted with Mallory conventional ignition systems. Contact sets are a wear item inside the distributor that open and close to trigger the ignition coil's spark timing; a worn, pitted, or out-of-adjustment contact set leads to hard starting, rough idle, misfires, and reduced fuel efficiency, so periodic replacement is a standard part of marine engine tune-up maintenance.\u003c\/p\u003e\u003cp\u003eThis Sierra 18-5314 contact set cross-references to Chrysler Inboard OEM part number 2421820 and Crusader OEM part number 20117, and is also suited to Ford and GM inboard\/sterndrive engines equipped with a Mallory Conventional ignition distributor. It is a compact, lightweight component designed to install into the existing distributor housing during a standard tune-up alongside condenser and rotor replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5314\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Contact Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e white\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236616\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00030999236616\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler Inboard engines (cross-references to OEM 2421820)\u003c\/li\u003e\n\u003cli\u003eCrusader engines (cross-references to OEM 20117)\u003c\/li\u003e\n\u003cli\u003eFord and GM engines equipped with Mallory Conventional ignition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler Inboard 2421820\u003c\/li\u003e\n\u003cli\u003eCrusader 20117\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Sierra 18-5314 contact set designed for?\u003c\/strong\u003e The Sierra 18-5314 fits Chrysler Inboard and Crusader marine engines, and is also suited to Ford and GM engines equipped with a Mallory Conventional ignition distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5314 cross-reference to a Chrysler Inboard OEM number?\u003c\/strong\u003e Yes, Sierra part 18-5314 cross-references to Chrysler Inboard OEM part number 2421820.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a Crusader OEM equivalent for this contact set?\u003c\/strong\u003e Crusader OEM number 20117 is the equivalent for the Sierra 18-5314 contact set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5314 contact set weigh?\u003c\/strong\u003e The Sierra 18-5314 contact set weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many contact sets come in one package?\u003c\/strong\u003e The Sierra 18-5314 is sold as a single contact set, one unit per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-5314 contact set?\u003c\/strong\u003e This contact set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5314 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-5314 is a Sierra-branded marine contact set manufactured to cross-reference OEM Chrysler Inboard and Crusader ignition components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5314 work with a Mallory ignition system?\u003c\/strong\u003e Yes, the Sierra 18-5314 is suited for Ford and GM engines running a Mallory Conventional ignition setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5314 contact set?\u003c\/strong\u003e The UPC for the Sierra 18-5314 marine contact set is 030999236616.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a condenser included with the 18-5314 contact set?\u003c\/strong\u003e The Sierra 18-5314 listing covers the contact set only, sold as one included component per package.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209184987,"sku":"SIE-18-5314","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5314_lg__76290.1558128540.500.750.jpg?v=1785188029"},{"product_id":"marine-ignition-condenser-for-gm-4-6-cyl-delco-conventional-ignition-replaces-oem-16-69-00050-sierra-18-5345","title":"Sierra Condenser 18-5345 for GM 4\/6\/8 Cyl \u0026 Ford 302 Marine Distributors (Replaces Mercury Marine 33662)","description":"\u003cp\u003eThe Sierra 18-5345 is a marine ignition condenser designed for Prestolite conventional ignition distributor systems used on a wide range of gas inboard and sterndrive engines. The condenser is a core tune-up component that works alongside the contact set (points), distributor cap, and rotor to suppress arcing at the breaker points and keep the ignition system firing reliably. It is built with a machined exterior for a precise fit inside the distributor housing.\u003c\/p\u003e\u003cp\u003eThis condenser is used across multiple engine families with Prestolite-style distributors, including 4-cylinder engines fitted with the 1C IGW-4118A and 1C IGW-4301 distributors, 6-cylinder 3.8L engines using the IBM-7014A distributor, GM 305\/350\/454 cid V8 engines using the IBM-7011 and IBM-7013 distributors, and Ford 302 V8 engines using the IBM-7007 and IBM-7007A distributors. Because it is compatible across so many Prestolite conventional ignition setups, it also cross-references to condensers used by Chris-Craft, Chrysler Inboard, Crusader, Mercury Marine, OMC, PleasureCraft, and Volvo marine engines.\u003c\/p\u003e\u003cp\u003eAs a wear item, the condenser should be replaced any time the contact set is replaced during a tune-up, since a weak or failing condenser causes premature point burning, hard starting, and rough idle. The 18-5345 is sold individually and is sized to fit directly in place of the original equipment condenser on these distributor applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5345\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236630\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 3.3 x 2.4 x 0.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System:\u003c\/strong\u003e Prestolite conventional ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Cylinder Counts:\u003c\/strong\u003e 4, 6, and 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Distributors:\u003c\/strong\u003e IGW-4118A, IGW-4301, IBM-7014A, IBM-7011, IBM-7013, IBM-7007, IBM-7007A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1959-72, 4 cylinder, 1C engine with IGW-4118A distributor\u003c\/li\u003e\n\u003cli\u003e1959-73, 4 cylinder, 1C engine with IGW-4301 distributor\u003c\/li\u003e\n\u003cli\u003e1984-88, 6 cylinder, 3.8L engine with IBM-7014A distributor\u003c\/li\u003e\n\u003cli\u003e1976-82, 8 cylinder, 305\/350\/454 cid engine with IBM-7011 distributor\u003c\/li\u003e\n\u003cli\u003e1983-88, 8 cylinder, 305\/350\/454 cid engine with IBM-7013 distributor\u003c\/li\u003e\n\u003cli\u003e1975-86, 8 cylinder, Ford 302 engine with IBM-7007 and IBM-7007A distributors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChris-Craft 16.69-00050\u003c\/li\u003e\n\u003cli\u003eChrysler Inboard 2098058\u003c\/li\u003e\n\u003cli\u003eChrysler Inboard 2279949\u003c\/li\u003e\n\u003cli\u003eCrusader 41057\u003c\/li\u003e\n\u003cli\u003eCrusader 705787\u003c\/li\u003e\n\u003cli\u003eMercury Marine 33662\u003c\/li\u003e\n\u003cli\u003eOMC 380537\u003c\/li\u003e\n\u003cli\u003ePleasureCraft R115002\u003c\/li\u003e\n\u003cli\u003eVolvo 835704-8\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5345 condenser fit?\u003c\/strong\u003e The Sierra 18-5345 condenser fits 4-cylinder 1C engines with IGW-4118A or IGW-4301 distributors, 6-cylinder 3.8L engines with an IBM-7014A distributor, 8-cylinder 305\/350\/454 cid engines with IBM-7011 or IBM-7013 distributors, and Ford 302 8-cylinder engines with IBM-7007 or IBM-7007A distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5345 condenser the same as the Mercury Marine 33662 condenser?\u003c\/strong\u003e Yes, the Sierra 18-5345 is a direct cross-reference for Mercury Marine 33662, along with Chris-Craft 16.69-00050, Chrysler Inboard 2098058 and 2279949, Crusader 41057 and 705787, OMC 380537, PleasureCraft R115002, and Volvo 835704-8.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5345 condenser weigh?\u003c\/strong\u003e The 18-5345 condenser weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the Sierra 18-5345 condenser?\u003c\/strong\u003e It ships in a package measuring 3.3 x 2.4 x 0.7 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the ignition condenser?\u003c\/strong\u003e The condenser should be replaced whenever the contact set (points) is replaced during a tune-up, since a weak 18-5345 condenser causes premature point burning, hard starting, and a rough idle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of ignition system does the 18-5345 condenser work with?\u003c\/strong\u003e It is built for Prestolite conventional ignition distributor systems, not electronic ignition setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5345 condenser fit GM 305, 350, and 454 cid marine engines?\u003c\/strong\u003e Yes, it fits GM 305, 350, and 454 cid engines equipped with an IBM-7011 distributor (1976-82) or an IBM-7013 distributor (1983-88).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5345 condenser fit Ford 302 marine engines?\u003c\/strong\u003e Yes, the 18-5345 fits Ford 302 engines equipped with an IBM-7007 or IBM-7007A distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-5345 condenser have?\u003c\/strong\u003e The Sierra 18-5345 condenser has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5345 an OEM or aftermarket part?\u003c\/strong\u003e The 18-5345 is a Sierra aftermarket condenser manufactured as a direct replacement equivalent to the OEM condensers it cross-references, including Mercury Marine 33662 and OMC 380537.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many condensers come in the package?\u003c\/strong\u003e The 18-5345 is sold as a single individual condenser.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209217755,"sku":"SIE-18-5345","price":6.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5345_lg__96069.1558129004.500.750.jpg?v=1785188556"},{"product_id":"marine-electronic-ignition-distributor-for-most-gm-v8-reverse-rotation-sierra-18-5316-1","title":"Sierra Distributor 18-5316-1 for Volvo Penta Ignition Systems","description":"\u003cp\u003eThe Sierra Distributor, part number 18-5316-1, is an ignition system distributor built for Volvo Penta marine engine applications. It is designed as a direct-fit replacement component within the Volvo Penta ignition system, delivering the timed spark distribution required for reliable engine starting and running performance on the water.\u003c\/p\u003e\u003cp\u003eThe housing carries a machined exterior finish, reflecting the precision manufacturing typical of Sierra ignition components. As with all distributor assemblies, this part is a wear-and-service item that boat owners typically replace when ignition timing issues, hard starting, or misfires point to a failing distributor.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5316-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Volvo Penta Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282349844\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra part 18-5316-1?\u003c\/strong\u003e It is a distributor for Volvo Penta marine ignition systems, identified by Sierra part number 18-5316-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this distributor made for Volvo Penta engines?\u003c\/strong\u003e Yes, the Sierra 18-5316-1 distributor is categorized for use in Volvo Penta ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5316-1 distributor weigh?\u003c\/strong\u003e This distributor weighs 4.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5316-1 distributor?\u003c\/strong\u003e The listed product dimensions for the Sierra 18-5316-1 are 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-5316-1 have?\u003c\/strong\u003e The Sierra 18-5316-1 distributor has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5316-1 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-5316-1 is the Sierra manufacturer part number for this distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat signs indicate this distributor needs replacement?\u003c\/strong\u003e Hard starting, misfires, or ignition timing problems in a Volvo Penta engine are common reasons boat owners replace the distributor, part 18-5316-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-5316-1 include mounting hardware?\u003c\/strong\u003e The available product information for the Sierra 18-5316-1 distributor does not specify included hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5316-1 distributor?\u003c\/strong\u003e The UPC for the Sierra 18-5316-1 distributor is 808282349844.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5316-1 distributor part of the ignition system or the fuel system?\u003c\/strong\u003e It is an ignition system component, specifically a distributor for Volvo Penta engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209250523,"sku":"SIE-18-5316-1","price":257.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5316-1__66582.1722362994.500.750.jpg?v=1785188815"},{"product_id":"sierra-18-5347-marine-ignition-condenser-for-prestolite-6-8-cylinder-distributors-replaces-mercury-marine-392-6324-omc-987895-chrysler-1818757","title":"Sierra 18-5347 Marine Ignition Condenser, Strap Conductor, Replaces OMC 980894 and Mercury Marine 392-6324","description":"\u003cp\u003eThe Sierra 18-5347 is a strap-conductor ignition condenser built for Chrysler Inboard tune-up applications using a Prestolite distributor. It is part of the Prestolite distributor system, which calls for two condensers per 12 volt ignition system, and it is functionally interchangeable with the Sierra 18-5340 condenser, which uses a wire-conductor design instead of a strap conductor. Buyers replacing a worn or failed condenser during a distributor tune-up can use the 18-5347 as a direct fit for the OEM part numbers it cross-references, including Chrysler Inboard, Mercury Marine, and OMC equivalents. The condenser is a compact, single-count component sized to mount within the distributor housing alongside the contact set, rotor, and cap during a full tune-up. It ships as a standalone part, so it should be paired with the appropriate contact set, rotor, cap, and ignition coil for a complete distributor rebuild. Because it is designed for 12 volt systems only, it should not be used on other voltage configurations. The strap-conductor design of the 18-5347 distinguishes it from the wire-conductor 18-5340, though both are interchangeable within the same distributor applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5347\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Condenser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Type:\u003c\/strong\u003e Strap Conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chrysler Inboard Tune-Up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volt System Only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Required:\u003c\/strong\u003e 2 condensers per 12 volt distributor system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 987895, 1818757, 3420600, 392-6324, 980894\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999014597\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Condenser (1 count)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits 12 volt Prestolite distributor systems on Chrysler Inboard engines requiring 2 condensers per distributor.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e987895\u003c\/li\u003e\n\u003cli\u003e1818757\u003c\/li\u003e\n\u003cli\u003e3420600\u003c\/li\u003e\n\u003cli\u003e392-6324\u003c\/li\u003e\n\u003cli\u003e980894\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5347 condenser fit?\u003c\/strong\u003e The Sierra 18-5347 fits Chrysler Inboard engines equipped with a Prestolite distributor on a 12 volt ignition system, which requires 2 condensers per distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5347 interchangeable with the 18-5340 condenser?\u003c\/strong\u003e Yes, the 18-5347 uses a strap-conductor design while the 18-5340 uses a wire-conductor design, but the two are interchangeable within the same distributor applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-5347 replace?\u003c\/strong\u003e The Sierra 18-5347 cross-references Chrysler Inboard 1818757 and 3420600, Mercury Marine 392-6324, and OMC 980894 and 987895.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many condensers does a Prestolite distributor tune-up need?\u003c\/strong\u003e A 12 volt Prestolite distributor system requires 2 condensers, such as the Sierra 18-5347, per tune-up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-5347?\u003c\/strong\u003e The Sierra 18-5347 ships as a single condenser (1 count); it does not include the distributor cap, rotor, contact set, or ignition coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5347 condenser weigh?\u003c\/strong\u003e The Sierra 18-5347 condenser weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5347 condenser?\u003c\/strong\u003e The Sierra 18-5347 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5347 use a strap or wire conductor?\u003c\/strong\u003e The Sierra 18-5347 uses a strap-conductor design, distinguishing it from the wire-conductor Sierra 18-5340.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage system is the Sierra 18-5347 designed for?\u003c\/strong\u003e The Sierra 18-5347 condenser is designed for 12 volt systems only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5347 covered by a warranty?\u003c\/strong\u003e The Sierra 18-5347 condenser is backed by a limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209316059,"sku":"SIE-18-5347","price":7.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5347_lg__17315.1558129130.500.750.jpg?v=1785187973"},{"product_id":"distributor-cap-for-ford-gm-v-8-prestolite-conventional-ignition-replaces-mercury-392-9766-sierra-18-5352","title":"Sierra 18-5352 Distributor Cap, Replaces 41058, Fits Ford \u0026 GM V-8 Prestolite Ignition","description":"\u003cp\u003eThe Sierra 18-5352 is a marine distributor cap built for Ford and GM V-8 engines equipped with a Prestolite conventional ignition system using a screw hold-down cap. It is a fit-specific ignition component that seals and protects the distributor's internal contacts while directing spark to each cylinder in firing order, making it a routine tune-up and ignition-repair replacement part for boat owners and marine mechanics.\u003c\/p\u003e\u003cp\u003eThe cap is constructed of machined aluminum and stainless steel with a black finish, giving it corrosion resistance for the marine environment while maintaining a precise, twist-on fit over the distributor housing. It measures 5.5 x 4.75 x 3.5 inches and weighs 0.5 pounds. Each Sierra ignition part is manufactured to meet or exceed the specifications of the original equipment part it replaces, and the 18-5352 cross-references directly to OEM part number 41058.\u003c\/p\u003e\u003cp\u003eThis is a fit-specific part intended for Ford and GM V-8 marine engines with Prestolite conventional (screw hold-down) ignition systems. Because distributor caps vary by ignition type and hold-down style, confirm your engine's ignition configuration before ordering to ensure proper fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5352\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 5.5 x 4.75 x 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Ford and GM V-8 engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999318961\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFord V-8 marine engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003cli\u003eGM V-8 marine engines with Prestolite conventional ignition (screw hold-down cap)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e41058\u003c\/li\u003e\n\u003cli\u003e392-9766\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5352 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5352 is designed for Ford and GM V-8 marine engines equipped with a Prestolite conventional ignition system that uses a screw hold-down cap, not a clip-on style cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5352 the same as OEM part 41058?\u003c\/strong\u003e Yes, the 18-5352 is a direct cross-reference replacement for OEM part number 41058, manufactured to meet or exceed the original part's specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5352 distributor cap made from?\u003c\/strong\u003e It is made of machined aluminum and stainless steel with a black finish, giving it corrosion resistance suited to marine ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5352 uses a screw hold-down design rather than spring clips, so it is intended for distributors built for a screw-mounted cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-5352?\u003c\/strong\u003e The Sierra 18-5352 distributor cap measures 5.5 x 4.75 x 3.5 inches and weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5352 come with a rotor?\u003c\/strong\u003e No, the package includes one distributor cap only; the rotor is a separate Sierra part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work on a GM small block V-8 with electronic ignition?\u003c\/strong\u003e The 18-5352 is built for Prestolite conventional ignition with a screw hold-down cap, so it is not intended for electronic ignition distributor housings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5352 genuine Sierra or a generic aftermarket part?\u003c\/strong\u003e It is a genuine Sierra-branded marine ignition part, engineered as a direct replacement for the original Prestolite-style distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers cross-reference to the 18-5352?\u003c\/strong\u003e The Sierra 18-5352 distributor cap replaces OEM part number 41058 and corresponds to OE number 392-9766.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need this cap versus a different Sierra distributor cap?\u003c\/strong\u003e The 18-5352 is specific to Ford and GM V-8 engines with Prestolite conventional, screw hold-down ignition; other Sierra caps in the same family, such as 18-5361 or 18-5354, are built for different ignition systems, so confirm your engine's ignition type before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-5352 have?\u003c\/strong\u003e The cap has a black body with a machined exterior finish on its aluminum and stainless steel construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5352 covered by a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5352 distributor cap is covered under Sierra's standard limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209545435,"sku":"SIE-18-5352","price":28.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__34017.1753840678.500.750.jpg?v=1785188006"},{"product_id":"distributor-cap-for-prestolite-v-6-single-point-marine-ignition-replaces-crusader-41069-mercruiser-392-9086-sierra-18-5353","title":"Sierra 18-5353 Distributor Cap, Replaces Mercury Marine 392-9086T, Fits 1984-88 6-Cylinder 3.8L Engines","description":"\u003cp\u003eThe Sierra 18-5353 Distributor Cap is a machined metal replacement distributor cap engineered for marine engines using the IBM-7014A distributor, found on 1984-88 6-cylinder 3.8L engine applications. It is built to meet or exceed the performance of the original equipment part it replaces, delivering reliable ignition spark distribution for consistent engine starting and running performance.\u003c\/p\u003e\u003cp\u003eConstructed from metal with a machined exterior finish and a twist-on closure, this distributor cap is designed for a secure, positive fit that resists vibration loosening during operation. Each unit ships as a single cap, ready to install in place of a worn, cracked, or corroded original cap as part of a routine ignition tune-up.\u003c\/p\u003e\u003cp\u003eThis cap is cross-referenced to a wide range of OEM and aftermarket part numbers, making it a straightforward replacement whether your engine is identified by a Crusader, Evinrude\/Johnson\/OMC, Mallory, Mercury Marine, or Volvo Penta part number. As a Sierra part, it is backed by Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5353\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 5.5 x 5 x 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.51 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Number:\u003c\/strong\u003e IBM-7014A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 6 Cylinder 3.8L Engine (1984-88)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1984-88, 6 Cylinder, 3.8L Engine, Distributor No. IBM-7014A\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader 41069\u003c\/li\u003e\n\u003cli\u003eGLM 71600\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson\/OMC 982879\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson\/OMC 9843398\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson\/OMC 3853814\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson\/OMC 984398\u003c\/li\u003e\n\u003cli\u003eMallory 9-29426\u003c\/li\u003e\n\u003cli\u003eMercruiser 392-9086T\u003c\/li\u003e\n\u003cli\u003eMercruiser 392-9086\u003c\/li\u003e\n\u003cli\u003eMercruiser 804417\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 841926\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 841926-9\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5353 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5353 fits 1984-88 6-cylinder 3.8L marine engines that use the IBM-7014A distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5353 a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a genuine Sierra International part, manufactured to meet or exceed the performance of the original equipment cap it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5353 replace?\u003c\/strong\u003e It cross-references to Crusader 41069, GLM 71600, Evinrude\/Johnson\/OMC 982879, 9843398, 3853814, and 984398, Mallory 9-29426, Mercruiser 392-9086T, 392-9086, and 804417, and Volvo Penta 841926 and 841926-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the distributor cap made of?\u003c\/strong\u003e The Sierra 18-5353 is made of metal with a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5353 distributor cap?\u003c\/strong\u003e It measures 5.5 x 5 x 3.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5353 distributor cap weigh?\u003c\/strong\u003e The 18-5353 weighs 0.51 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e It uses a twist-on closure for a secure, vibration-resistant fit on the distributor body.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-5353 distributor cap?\u003c\/strong\u003e The cap is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5353 come with a warranty?\u003c\/strong\u003e Yes, as a Sierra part the 18-5353 distributor cap is covered under Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5353?\u003c\/strong\u003e One Sierra 18-5353 distributor cap ships per order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich distributor number is this cap designed for?\u003c\/strong\u003e The 18-5353 is matched to distributor number IBM-7014A, used on 1984-88 6-cylinder 3.8L engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap fit a Mercruiser 3.8L application?\u003c\/strong\u003e Yes, the 18-5353 cross-references to Mercruiser part numbers 392-9086T, 392-9086, and 804417 for compatible 3.8L 6-cylinder engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209742043,"sku":"SIE-18-5353","price":38.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5353_lg__12416.1693917224.500.750.jpg?v=1785188917"},{"product_id":"marine-distributor-cap-for-volvo-penta-stern-drive-with-bosch-ignition-replaces-oem-841263-sierra-18-5358","title":"Sierra 18-5358 Distributor Cap, Replaces Volvo Penta 841263, for AQ145\/AQ151 Stern Drive Engines, White","description":"\u003cp\u003eThe Sierra 18-5358 Distributor Cap is a direct-fit ignition component designed for Bosch-style distributor applications on Volvo Penta stern drive engines, specifically the AQ145A, AQ145B, AQ151A, AQ151B, and AQ151C engine models. The distributor cap seals and protects the distributor's internal contacts while directing high-voltage spark from the ignition coil to each spark plug in firing order, making it a critical part for reliable engine starting and smooth running. This cap is finished in white with a machined metal construction and uses a twist-on closure for secure, tool-free installation and removal during routine maintenance or tune-ups.\u003c\/p\u003e\u003cp\u003eEach Sierra 18-5358 cap is built to meet or exceed the performance of the original equipment part it replaces, making it a straightforward swap for a cracked, worn, or corroded distributor cap. It is interchangeable with several commonly referenced cross numbers, so boat owners searching by CDI, GLM, Mallory, or Volvo Penta part numbers can confirm they are ordering the correct replacement. One distributor cap is included per package.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5358\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.48 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ145A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ145B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCDI E64-0011\u003c\/li\u003e\n\u003cli\u003eGLM 71480\u003c\/li\u003e\n\u003cli\u003eMallory 9-29410\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 841263\u003c\/li\u003e\n\u003cli\u003eVolvo 841263-7\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5358 distributor cap fit?\u003c\/strong\u003e The 18-5358 distributor cap fits Volvo Penta AQ145A, AQ145B, AQ151A, AQ151B, and AQ151C stern drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5358 cap compatible with Bosch distributors?\u003c\/strong\u003e Yes, the Sierra 18-5358 distributor cap is designed for use in Bosch-style distributor applications on the applicable Volvo Penta engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this distributor cap?\u003c\/strong\u003e The Sierra 18-5358 distributor cap is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5358 cap made of?\u003c\/strong\u003e It is made of metal with a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5358 cross reference?\u003c\/strong\u003e Sierra part 18-5358 is interchangeable with CDI E64-0011, GLM 71480, Mallory 9-29410, and Volvo Penta 841263 (also referenced as Volvo 841263-7).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the distributor cap weigh?\u003c\/strong\u003e The Sierra 18-5358 distributor cap weighs 0.48 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e It uses a twist-on closure, allowing the 18-5358 cap to be secured or removed without additional tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many caps come in a package?\u003c\/strong\u003e Each order of the Sierra 18-5358 includes one distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5358 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket replacement built by Sierra to meet or exceed the performance of the original equipment part it replaces, including Volvo Penta 841263.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace my distributor cap?\u003c\/strong\u003e A distributor cap like the 18-5358 should be replaced if it is cracked, corroded, or showing carbon tracking, since these conditions cause misfires or hard starting on AQ145 and AQ151 series engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5358 include the rotor?\u003c\/strong\u003e No, the package includes only the Sierra 18-5358 distributor cap itself; the rotor is a separate component.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209774811,"sku":"SIE-18-5358","price":81.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5358_lg__62577.1558129711.500.750.jpg?v=1785189122"},{"product_id":"distributor-cap-for-mercruiser-3-0l-lx-4-cyl-gm-module-in-cap-distributors-replaces-omc-986643-and-mercruiser-811635-sierra-18-5361","title":"Sierra 18-5361 Distributor Cap, GM Module-in-Cap 4-Cylinder Distributors, Replaces OMC 986643","description":"\u003cp\u003eThe Sierra 18-5361 Distributor Cap is a direct-fit replacement cap for New GM Module-in-Cap 4-cylinder distributors, including 3.0L LX applications. It is built from machined metal in a white finish and uses a twist-on closure for a secure, weatherproof seal over the distributor. As the cap that routes spark from the ignition coil to each spark plug in firing order, it is a wear item that should be inspected and replaced when it shows cracking, carbon tracking, or corroded terminal contacts, since a failing cap can cause misfires, hard starting, or a no-start condition.\u003c\/p\u003e\u003cp\u003eThe 18-5361 replaces OMC 986643 and is manufactured to meet or exceed the specifications of the original equipment part. It is compact, measuring 0.39 x 0.39 x 0.39 inches and weighing 0.21 pounds, and is sold as a single distributor cap ready to install in place of the original.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5361\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.21 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563705\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNew GM Module-in-Cap 4-cylinder distributors\u003c\/li\u003e\n\u003cli\u003e3.0L LX\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e986643\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5361 distributor cap fit?\u003c\/strong\u003e The 18-5361 fits New GM Module-in-Cap 4-cylinder distributors, including 3.0L LX applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-5361 replace?\u003c\/strong\u003e It replaces OMC 986643, the original equipment distributor cap for these GM 4-cylinder Module-in-Cap distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5361 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-5361 is manufactured by Sierra as a direct replacement, built to meet or exceed the specifications of the original equipment cap it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5361 distributor cap made of?\u003c\/strong\u003e It is made of machined metal with a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5361 uses a twist-on closure to seat and lock onto the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5361 distributor cap?\u003c\/strong\u003e The distributor cap measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5361 distributor cap weigh?\u003c\/strong\u003e It weighs 0.21 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5361?\u003c\/strong\u003e The order includes one Sierra 18-5361 distributor cap; a matching rotor is a separate part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should a distributor cap like the 18-5361 be replaced?\u003c\/strong\u003e A distributor cap should be replaced when it shows cracking, carbon tracking, or corroded terminal contacts, since these conditions can cause misfires or a no-start condition on GM Module-in-Cap 4-cylinder distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5361 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5361 distributor cap is covered under Sierra's standard limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5361?\u003c\/strong\u003e The UPC for the Sierra 18-5361 distributor cap is 030999563705.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209840347,"sku":"SIE-18-5361","price":12.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5361_lg__92453.1558129825.500.750.jpg?v=1785187973"},{"product_id":"distributor-cap-for-mercruiser-808483-gm-v-8-module-in-cap-distributors-sierra-18-5354-crusader-38070-omc-volvo-penta-3854548","title":"Sierra 18-5354 Distributor Cap, Replaces Mercury Marine 808483, for MerCruiser 350 MAG MPI 350\/V-8","description":"\u003cp\u003eThe Sierra 18-5354 Distributor Cap is a contact-controlled, standard-rotation distributor cap built for MerCruiser 350 MAG MPI 350\/V-8 inboard\/sterndrive engines. It is designed for New GM style module-in-cap distributors and is not intended for engines running Thunderbolt ignition or MPI engines equipped with an ECM 555. The cap is machined from metal with a white exterior finish and a twist-on closure that secures firmly to the distributor housing while allowing quick removal for tune-ups or spark plug wire service.\u003c\/p\u003e\u003cp\u003eThis distributor cap covers the ignition side of a full tune-up and is commonly replaced together with the contact set, rotor, coil, and spark plug wires when servicing a MerCruiser 350 MAG MPI ignition system. It measures 5.8 x 5.5 x 5.4 inches and weighs 0.33 pounds. Every Sierra part is built to meet or exceed the performance of the original equipment component it replaces, giving boat owners a reliable factory-fit alternative for scheduled maintenance or ignition repairs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5354\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Contact controlled distributor, standard rotation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Exclusion:\u003c\/strong\u003e Not for use with Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 5.8 x 5.5 x 5.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.33 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI (GEN +) 350\/V-8, model year 1998, serial number range L010019-L325962\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI MIE (GEN +) 350\/V-8, model year 1998, serial number range L002008-L302199\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI SKI 350\/V-8, model years 1995-1998, serial number range F350583-L304599\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader 38070\u003c\/li\u003e\n\u003cli\u003eGLM 71400\u003c\/li\u003e\n\u003cli\u003eMallory 9-29411\u003c\/li\u003e\n\u003cli\u003eMercury Marine \/ MerCruiser 808483\u003c\/li\u003e\n\u003cli\u003eMercury Marine \/ MerCruiser 808483T3\u003c\/li\u003e\n\u003cli\u003eMercury Marine \/ MerCruiser 804418\u003c\/li\u003e\n\u003cli\u003eMercury Marine \/ MerCruiser 808483T\u003c\/li\u003e\n\u003cli\u003eOMC 3854548\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3854548-9\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5354 distributor cap fit?\u003c\/strong\u003e The 18-5354 fits MerCruiser 350 MAG MPI (GEN +) 350\/V-8 engines from model year 1998 with serial numbers L010019-L325962, the 350 MAG MPI MIE (GEN +) 350\/V-8 from 1998 with serial numbers L002008-L302199, and the 350 MAG MPI SKI 350\/V-8 from model years 1995-1998 with serial numbers F350583-L304599.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work with a Thunderbolt ignition system?\u003c\/strong\u003e No, the Sierra 18-5354 is a contact-controlled, standard-rotation distributor cap and is not designed for engines running Thunderbolt ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5354 compatible with MPI engines using an ECM 555?\u003c\/strong\u003e No, this distributor cap is built for New GM style module-in-cap distributors on V-8 applications and excludes MPI engines equipped with an ECM 555.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-5354 replace?\u003c\/strong\u003e It replaces Crusader 38070, GLM 71400, Mallory 9-29411, Mercury Marine \/ MerCruiser 808483, 808483T3, 804418, and 808483T, OMC 3854548, and Volvo Penta 3854548-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the distributor cap made from?\u003c\/strong\u003e The 18-5354 is machined from metal and finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e It uses a twist-on closure that secures to the distributor housing and can be removed for tune-up service or spark plug wire access.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-5354?\u003c\/strong\u003e This distributor cap measures 5.8 x 5.5 x 5.4 inches and weighs 0.33 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5354 an original equipment part or aftermarket?\u003c\/strong\u003e It is an aftermarket Sierra replacement part built to meet or exceed the performance of the original equipment distributor cap it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other ignition parts are commonly replaced along with this cap?\u003c\/strong\u003e On a MerCruiser 350 MAG MPI ignition tune-up, the distributor cap is typically serviced together with the contact set, rotor, coil, and spark plug wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5354 include the rotor or spark plug wires?\u003c\/strong\u003e No, this listing is for the distributor cap only; the rotor, contact set, coil, and spark plug wires are separate components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the serial number range matter when ordering this cap?\u003c\/strong\u003e Yes, the 18-5354 is matched to specific serial number ranges on MerCruiser 350 MAG MPI engines, such as L010019-L325962 for the GEN + variant, so confirming your engine's serial number ensures correct fitment.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988209873115,"sku":"SIE-18-5354","price":32.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5354_lg__57179.1558129549.500.750.jpg?v=1785188006"},{"product_id":"sierra-18-5369-marine-distributor-cap-with-gasket-for-ford-v-8-prestolite-ignition-clip-hold-down-replaces-mercury-392-6318-omc-982336","title":"Sierra 18-5369 Marine Distributor Cap with Gasket, Replaces RA108002, Fits Ford V-8 with Prestolite Ignition","description":"\u003cp\u003eThe Sierra 18-5369 is a marine distributor cap engineered to meet today's high horsepower engine demands and stand up to the harsh marine environment. It is built for a Ford V-8 engine equipped with a Prestolite ignition system using a clip hold-down cap, and is intended for Prestolite, all 7011 applications. The cap is made of metal with a machined exterior finish and a white color, and comes complete with the matching 18-5399 gasket so the cap and seal are ready to install as a set. Sierra states that its products meet or exceed the original equipment part they replace, and Sierra supplies parts to many OEM engine manufacturers and boat builders.\u003c\/p\u003e\u003cp\u003eThis distributor cap is a direct replacement for RA108002 and uses a twist-on closure type for secure, repeatable installation. It measures 0.39 x 0.39 x 0.39 inches and weighs 0.71 pounds. Whether performing a routine ignition tune-up or replacing a cracked or worn cap, the 18-5369 restores proper spark distribution to keep a Prestolite-ignition Ford V-8 marine engine running reliably.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5369\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e 18-5399 Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e RA108002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.71 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319043\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Chrysler Inboard Tune Up Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFord V-8 engines with Prestolite ignition using a clip hold-down cap\u003c\/li\u003e\n\u003cli\u003ePrestolite, all 7011\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eRA108002\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5369 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5369 is designed for a Ford V-8 engine using a Prestolite ignition system with a clip hold-down cap, and covers Prestolite, all 7011 applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5369 come with a gasket?\u003c\/strong\u003e Yes, the Sierra 18-5369 distributor cap includes the matching 18-5399 gasket, so both parts are ready to install together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-5369 replace?\u003c\/strong\u003e This distributor cap replaces OEM part number RA108002.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the distributor cap made of?\u003c\/strong\u003e The 18-5369 is made of metal with a machined exterior finish and a white color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5369 weigh?\u003c\/strong\u003e The Sierra 18-5369 distributor cap weighs 0.71 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5369 distributor cap?\u003c\/strong\u003e The Sierra 18-5369 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5369 uses a twist-on closure type for secure attachment to the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5369 an OEM or aftermarket part?\u003c\/strong\u003e The 18-5369 is a Sierra aftermarket distributor cap that Sierra states is engineered to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should this distributor cap be replaced?\u003c\/strong\u003e A distributor cap like the Sierra 18-5369 is typically replaced during routine ignition tune-ups or when the existing cap shows cracks, corrosion, or wear that disrupts spark distribution.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the 18-5369?\u003c\/strong\u003e The package includes the Sierra 18-5369 distributor cap along with the 18-5399 gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5369 fit a non-Prestolite ignition system?\u003c\/strong\u003e No, the 18-5369 is built specifically for a Ford V-8 engine with a Prestolite ignition system using a clip hold-down cap; it is not intended for other ignition types.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand makes part number 18-5369?\u003c\/strong\u003e Part number 18-5369 is manufactured by Sierra.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212330715,"sku":"SIE-18-5369","price":33.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5369_lg__53889.1558129947.500.750.jpg?v=1785188705"},{"product_id":"marine-distributor-cap-for-mallory-single-point-v-8-ignition-replaces-mercury-391-5075-omc-982209-fits-ford-gm-chrysler-inboard-sierra-18-5376","title":"Sierra Distributor Cap 18-5376 - Replaces Crusader 20222, Ford \u0026 GM V-8 Inboard Ignition","description":"\u003cp\u003eThe Sierra 18-5376 is a replacement distributor cap engineered for inboard marine ignition systems, including Crusader applications, and fits Ford and GM V-8 engines equipped with Mallory ignition setups. It is designed to work with breakerless ignition systems that sense current levels in the coil and adjust dwell to maintain peak energy across the full RPM range, delivering on average four times more available energy between 3000 and 5000 RPM and roughly twice the plug voltage compared to older point-type ignition systems. Because ignition energy is sustained and coil current is regulated to peak just before spark, coil life is extended and timing stability is improved throughout the engine's operating range.\u003c\/p\u003e\u003cp\u003eThis distributor cap is a direct fit for the OEM part it replaces, restoring proper spark distribution to each cylinder and helping the engine start reliably and run smoothly. It is built to the fit, form, and function of the original equipment component, making it a straightforward swap during a tune-up or ignition system service.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5376\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Inboard - Crusader Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Ford and GM V-8 engines with Mallory ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236647\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 20222\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInboard - Crusader Ignition System\u003c\/li\u003e\n\u003cli\u003eFord and GM V-8 engines with Mallory ignition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e20222\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5376 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5376 is designed for inboard Crusader ignition systems and fits Ford and GM V-8 engines equipped with Mallory ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-5376 replace?\u003c\/strong\u003e This cap replaces OEM part number 20222 on applicable Crusader inboard ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5376 distributor cap weigh?\u003c\/strong\u003e It weighs 0.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5376 a direct OEM replacement or an aftermarket part?\u003c\/strong\u003e The Sierra 18-5376 is built to the fit, form, and function of the original equipment cap it replaces, functioning as a direct replacement rather than a universal fit part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this distributor cap work with point-type ignition systems?\u003c\/strong\u003e It is designed for breakerless-style ignition systems that sense coil current and adjust dwell electronically, rather than traditional point-type systems, and it develops significantly more available energy and plug voltage than point-type setups in the 3000-5000 RPM range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5376 help with hard starting or misfires?\u003c\/strong\u003e By restoring proper spark distribution to each cylinder and maintaining sustained ignition energy through peak RPM, the Sierra 18-5376 helps address rough running, hard starting, and misfire symptoms caused by a worn or cracked distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5376 improve ignition timing stability?\u003c\/strong\u003e Yes, the system this cap is part of provides more stable timing by regulating coil current to reach peak level just prior to spark.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a gasket included with the 18-5376 distributor cap?\u003c\/strong\u003e The Sierra 18-5376 distributor cap is supplied as a complete cap assembly for installation on compatible Crusader inboard ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5376?\u003c\/strong\u003e The UPC for the Sierra 18-5376 distributor cap is 030999236647.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-5376 different from the Sierra 18-5375 or 18-5384 distributor caps?\u003c\/strong\u003e The 18-5376 is a distinct part number engineered to replace OEM number 20222, while other Sierra distributor caps in the same family replace different OEM numbers, so buyers should confirm their original cap's OEM number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5376 extend ignition coil life?\u003c\/strong\u003e Yes, because ignition energy is sustained and coil current is regulated to reach peak just before spark, coil life is increased as part of the ignition system this cap serves.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212363483,"sku":"SIE-18-5376","price":33.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5376_lg__19483.1558127229.500.750.jpg?v=1785188376"},{"product_id":"distributor-cap-for-mercruiser-850484-omc-volvo-penta-3854331-fits-gm-v6-module-in-cap-distributors-sierra-18-5362","title":"Sierra 18-5362 Distributor Cap for GM V6 Module-in-Cap Distributors, Replaces Mercruiser 850484T, OMC 3854331","description":"\u003cp\u003eThe Sierra 18-5362 Distributor Cap is a direct-fit replacement cap designed for New GM style \"Module in Cap\" distributors used on V6 marine engine applications. It mounts to the top of the distributor housing and routes ignition voltage from the internal module to each spark plug wire in firing order, so a cracked, arced, or corroded cap is a common cause of rough running or a no-start condition. This cap is built to the fit and function of the original equipment part and is interchangeable with a range of OEM and aftermarket cross-reference numbers used across GLM, Mallory, Mercruiser, OMC, and Volvo Penta ignition systems, making it a straightforward swap for boat owners servicing GM-based V6 marine engines with a module-in-cap distributor.\u003c\/p\u003e\u003cp\u003eThe cap has a white, machined exterior finish and a twist-on closure for secure, tool-free installation once aligned to the distributor housing. When replacing this cap, use the matching Sierra 18-5408 rotor to complete the ignition module service, since cap and rotor are designed to be serviced together. Each Sierra part is built to meet or exceed the performance of the original component it replaces and is backed by Sierra's standard limited warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5362\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e New GM Style \"Module in Cap\" Distributors - V6 Applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Rotor:\u003c\/strong\u003e 18-5408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e GLM 71410, Mallory 9-29425, Mercruiser 850484T, 850484, 804420, 850484T2, OMC 3854331, Volvo Penta 3854331-0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563712\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNew GM style \"Module in Cap\" distributors - V6 applications\u003c\/li\u003e\n\u003cli\u003eUse with Sierra 18-5408 rotor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 71410\u003c\/li\u003e\n\u003cli\u003eMallory 9-29425\u003c\/li\u003e\n\u003cli\u003eMercruiser 850484T\u003c\/li\u003e\n\u003cli\u003eMercruiser 850484\u003c\/li\u003e\n\u003cli\u003eMercruiser 804420\u003c\/li\u003e\n\u003cli\u003eMercruiser 850484T2\u003c\/li\u003e\n\u003cli\u003eOMC 3854331\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3854331-0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5362 distributor cap fit?\u003c\/strong\u003e The 18-5362 fits New GM style \"Module in Cap\" distributors used in V6 marine engine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich rotor should I use with this distributor cap?\u003c\/strong\u003e Sierra recommends pairing the 18-5362 cap with the Sierra 18-5408 rotor for these V6 module-in-cap distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5362 a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a genuine Sierra part, manufactured to meet or exceed the performance of the original equipment cap it replaces, and covered by Sierra's limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-5362 cross-reference to?\u003c\/strong\u003e It is interchangeable with GLM 71410, Mallory 9-29425, Mercruiser 850484T, 850484, 804420, and 850484T2, OMC 3854331, and Volvo Penta 3854331-0.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work on a Mercruiser with a module-in-cap V6 distributor?\u003c\/strong\u003e Yes, the 18-5362 cross-references to Mercruiser 850484T, 850484, 804420, and 850484T2, so it fits Mercruiser V6 engines using the New GM style module-in-cap distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5362 fit OMC or Volvo Penta engines too?\u003c\/strong\u003e Yes, this cap is also interchangeable with OMC 3854331 and Volvo Penta 3854331-0 for GM-based V6 module-in-cap distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the distributor cap have?\u003c\/strong\u003e The 18-5362 has a white body with a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the distributor cap attach to the distributor housing?\u003c\/strong\u003e It uses a twist-on closure, allowing it to be secured to the distributor housing without additional tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5362 distributor cap?\u003c\/strong\u003e The cap measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5362 distributor cap weigh?\u003c\/strong\u003e It weighs 0.24 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5362?\u003c\/strong\u003e You receive one Sierra 18-5362 distributor cap; the matching 18-5408 rotor is sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace this distributor cap?\u003c\/strong\u003e A cracked, arced, or corroded cap on a module-in-cap distributor is a common cause of rough running or hard starting, so the 18-5362 is used to replace a worn original cap on GM style V6 distributors.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212494555,"sku":"SIE-18-5362","price":28.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5362_lg__14859.1558129896.500.750.jpg?v=1785188651"},{"product_id":"sierra-18-5389-distributor-cap-for-ford-gm-v-8-marine-engines-replaces-crusader-3000121-mercury-marine-393-4988t","title":"Sierra Distributor Cap 18-5389, Replaces Mercury Marine 393-4988T, for Ford \u0026 GM V-8 Engines","description":"\u003cp\u003eThe Sierra 18-5389 Distributor Cap is a metal, machined-finish replacement distributor cap built for Ford and GM V-8 marine engines running Autolite or Mercury ignition systems. It uses a twist-on closure for a secure, positive seal against moisture and vibration, both common failure points for marine ignition components operating in a harsh onboard environment. The white housing protects the internal contacts while distributing spark to each cylinder in firing order, and the cap is engineered to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003eThis cap is a straightforward tune-up and ignition-maintenance item, suited for scheduled replacement as part of routine engine service or as a direct fix for a cracked, arced, or corroded cap. It ships as a single component and is intended to be matched with a compatible rotor and ignition coil for the engine it is installed on.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5389\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.67 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Ford and GM V-8 engines with Autolite or Mercury ignitions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236678\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFord V-8 marine engines with Autolite ignition\u003c\/li\u003e\n\u003cli\u003eGM V-8 marine engines with Autolite or Mercury ignition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e393-4988T2\u003c\/li\u003e\n\u003cli\u003eCrusader 3000121\u003c\/li\u003e\n\u003cli\u003eMercury Marine 393-4988T\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5389 distributor cap fit?\u003c\/strong\u003e The 18-5389 fits Ford and GM V-8 marine engines equipped with Autolite or Mercury ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5389 cap a direct replacement for a Mercury Marine cap?\u003c\/strong\u003e Yes, this Sierra cap cross-references to Mercury Marine 393-4988T and 393-4988T2, along with Crusader 3000121, so it is a direct equivalent for those OEM part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5389 distributor cap made from?\u003c\/strong\u003e It has a metal body with a machined exterior finish and a white housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor housing?\u003c\/strong\u003e The 18-5389 uses a twist-on closure type rather than screw-down clips.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5389 distributor cap weigh?\u003c\/strong\u003e It weighs 0.67 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this distributor cap?\u003c\/strong\u003e The Sierra 18-5389 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5389 come with a rotor or gasket?\u003c\/strong\u003e No, the 18-5389 is supplied as the distributor cap only; it does not include a rotor or gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-5389 is a genuine Sierra part, manufactured to meet or exceed the specifications of the original equipment component it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5389 work on an engine with points-type ignition?\u003c\/strong\u003e The 18-5389 is designed for Ford and GM V-8 engines with Autolite or Mercury ignitions; check your existing ignition type before ordering, as it is not listed for other ignition configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my distributor cap needs replacing?\u003c\/strong\u003e Common signs include visible cracking, carbon tracking, corrosion on the internal contacts, or a rough-running engine; the 18-5389 is intended as a direct replacement when the original cap shows this kind of wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5389 distributor cap?\u003c\/strong\u003e The UPC for the Sierra 18-5389 distributor cap is 030999236678.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212527323,"sku":"SIE-18-5389","price":30.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5389_lg__53264.1558127569.500.750.jpg?v=1785188433"},{"product_id":"distributor-cap-for-gm-4-cyl-marine-engines-with-delco-conventional-ignition-replaces-mercruiser-393-9459q1-sierra-18-5385","title":"Sierra 18-5385 Distributor Cap, Replaces Mercruiser 393-9459Q1, Fits MerCruiser 110\/120\/140 4-Cyl I\/O","description":"\u003cp\u003eThe Sierra 18-5385 Distributor Cap is a direct-fit ignition component for MerCruiser 4-cylinder sterndrive engines using a contact-controlled, standard-rotation distributor. It is molded from durable plastic with a machined white finish and a twist-on closure that seats securely over the distributor housing for a reliable weatherproof connection to the ignition system.\u003c\/p\u003e\u003cp\u003eThis cap is engineered for MerCruiser 110, 120, and 140 model engines equipped with Delco conventional ignition, and it is not intended for use on Thunderbolt ignition systems. It cross-references to a range of OEM and aftermarket part numbers used across Mercruiser, Chris-Craft, GLM, Evinrude\/Johnson, and Mallory catalogs, making it a convenient way to source a replacement cap regardless of which brand's part number you started with. Each Sierra distributor cap is built to meet or exceed the fit, form, and function of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003eThe 18-5385 cap is the distributor cap component of a broader MerCruiser tune-up lineup that also includes a matching contact set, rotor, coil, distributor, and spark plug wires, so it can be ordered on its own for a cap-only replacement or alongside those companion parts for a full ignition service.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5385\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.47 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System Type:\u003c\/strong\u003e Contact-controlled, standard rotation, Delco conventional ignition (excludes Thunderbolt ignition)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e MerCruiser 110, 120, 140 4-cylinder I\/O engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 110 (153 cid L4), 1963-1966, Serial Number 1537370-2044033\u003c\/li\u003e\n\u003cli\u003eMerCruiser 120 (153 cid L4), 1964-1986, Serial Number 1666601-B531853\u003c\/li\u003e\n\u003cli\u003eMerCruiser 140 (181 cid L4), 1968-1986, Serial Number 2508261-B450800\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16.69-00052\u003c\/li\u003e\n\u003cli\u003e71540\u003c\/li\u003e\n\u003cli\u003e380541\u003c\/li\u003e\n\u003cli\u003e9-29401\u003c\/li\u003e\n\u003cli\u003e393-9459Q1\u003c\/li\u003e\n\u003cli\u003e393-9459\u003c\/li\u003e\n\u003cli\u003e393-9549T\u003c\/li\u003e\n\u003cli\u003e33667\u003c\/li\u003e\n\u003cli\u003eFI6900052\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5385 distributor cap fit?\u003c\/strong\u003e The 18-5385 fits MerCruiser 110 (1963-1966), MerCruiser 120 (1964-1986), and MerCruiser 140 (1968-1986) 4-cylinder I\/O engines running Delco conventional ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work on a Thunderbolt ignition system?\u003c\/strong\u003e No. The 18-5385 is designed for contact-controlled, standard-rotation distributors and specifically excludes Thunderbolt ignition setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5385 a genuine Sierra part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-manufactured aftermarket distributor cap engineered to meet or exceed the fit and performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does the Sierra 18-5385 cross to?\u003c\/strong\u003e It cross-references to Mercruiser 393-9459Q1, 393-9459, 393-9549T, 33667, and FI6900052, Chris-Craft 16.69-00052, GLM 71540, Evinrude\/Johnson 380541, and Mallory 9-29401.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the distributor cap made of?\u003c\/strong\u003e The 18-5385 is molded from plastic with a machined white exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow big is the 18-5385 distributor cap?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches and weighs 0.47 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5385 uses a twist-on closure that secures directly over the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the 18-5385?\u003c\/strong\u003e Each order includes one Sierra 18-5385 distributor cap only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any other parts along with this cap for a tune-up?\u003c\/strong\u003e The 18-5385 is the cap component of a MerCruiser 4-cylinder ignition lineup that also includes a matching rotor, contact set, coil, distributor, and spark plug wires, which can be ordered separately if a full tune-up is needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5385 fit GM 4-cylinder engines outside of MerCruiser applications?\u003c\/strong\u003e Yes, it is built for GM 4-cylinder engines equipped with Delco conventional ignition, which includes the MerCruiser 110, 120, and 140 applications listed for this cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between this cap and the OEM Mercruiser 393-9459Q1?\u003c\/strong\u003e The Sierra 18-5385 is a direct cross-reference to Mercruiser 393-9459Q1 and is built to match its fit and function as a replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5385 covered by a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5385 distributor cap is covered under Sierra's standard limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212560091,"sku":"SIE-18-5385","price":19.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5385_lg__39188.1558127369.500.750.jpg?v=1785188394"},{"product_id":"marine-distributor-cap-for-volvo-penta-v-8-gm-module-in-cap-ignition-replaces-3862014-243658-sierra-18-5394","title":"Sierra Distributor Cap 18-5394, Replaces 243658, for GM V-8 New Style Ignition","description":"\u003cp\u003eThe Sierra 18-5394 is a marine distributor cap engineered for GM V-8 engines of the new style design, where the ignition module is integrated directly into the cap itself rather than mounted as a separate external component. This module-in-cap construction simplifies the ignition system layout and is specific to the newer GM V-8 configuration it is built for.\u003c\/p\u003e\u003cp\u003eThe cap uses a twist-on closure for a secure, positive connection to the distributor body, helping keep moisture and contaminants out of the ignition circuit in a marine environment. It measures 4.9 x 5.5 x 3.6 inches and weighs 0.25 pounds. This distributor cap directly replaces OEM part number 243658, making it a straightforward swap for boats and stern drives originally equipped with that component.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5394\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 243658\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e GM V-8, new style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Module:\u003c\/strong\u003e Integrated (Module in Cap)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4.9 x 5.5 x 3.6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319128\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGM V-8 engines, new style (module-in-cap design)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e243658\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5394 distributor cap fit?\u003c\/strong\u003e The 18-5394 is built for GM V-8 engines of the new style, where the ignition module is integrated into the cap rather than mounted separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this distributor cap replace?\u003c\/strong\u003e Sierra 18-5394 replaces OEM part number 243658.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is meant by 'module in cap' for this distributor cap?\u003c\/strong\u003e It means the ignition module is built directly into the distributor cap assembly of the 18-5394, rather than being a separate external module bolted to the distributor housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5394 distributor cap weigh?\u003c\/strong\u003e The Sierra 18-5394 weighs 0.25 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this distributor cap?\u003c\/strong\u003e The 18-5394 measures 4.9 x 5.5 x 3.6 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e It uses a twist-on closure, which secures the 18-5394 cap onto the distributor body.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-5394 is a Sierra-branded distributor cap sold under Sierra's own part number as a direct replacement for OEM 243658.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e Ordering Sierra 18-5394 includes one distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work with older GM distributor styles?\u003c\/strong\u003e The 18-5394 is designed for the new style GM V-8 distributor with an integrated module, not the older design that uses a separate external module.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this distributor cap fit V-6 or only V-8 GM engines?\u003c\/strong\u003e The Sierra 18-5394 is designated for GM V-8 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5394 distributor cap?\u003c\/strong\u003e The UPC for the Sierra 18-5394 distributor cap is 030999319128.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212855003,"sku":"SIE-18-5394","price":7.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5394_lg__55927.1558127686.500.750.jpg?v=1785188158"},{"product_id":"distributor-cap-for-gm-mercruiser-v-6-thunderbolt-iv-v-hei-ignition-replaces-13753a2-815407a2-sierra-18-5396","title":"Sierra Distributor Cap 18-5396, Replaces 13753A2\/815407A2, for GM V-6 4.3L MerCruiser I\/O Engines","description":"\u003cp\u003eThe Sierra 18-5396 is a replacement distributor cap engineered for GM V-6 262 cid (4.3L) MerCruiser sterndrive and inboard engines using a contact-controlled, standard-rotation ignition distributor. It is not designed for Thunderbolt ignition systems, so it is intended specifically for the contact-controlled distributor found on the MerCruiser models and serial ranges listed below.\u003c\/p\u003e\u003cp\u003eThe cap is constructed of aluminum, zinc, or brass with a machined black exterior finish for a factory-correct appearance and a durable fit under the hood. Each 18-5396 distributor cap includes a gasket for a proper seal against moisture and contaminants at installation. As with all Sierra ignition components, the 18-5396 is built to meet or exceed the specifications of the original equipment part it replaces, making it a straightforward like-for-like swap when a distributor cap has cracked, corroded, or is arcing.\u003c\/p\u003e\u003cp\u003eThis cap covers a wide range of MerCruiser 4.3L (262 cid) V-6 applications, including the 205, 4.3L (2bbl), 4.3LX (4bbl), 4.3LH (GEN+), and 4.3L\/LH\/LX\/LXH Alpha and Bravo (GEN+) model lines across multiple serial number ranges. Always confirm the model, serial number, and ignition type before ordering, since MerCruiser 4.3L engines used several different cap and rotor combinations depending on year and configuration.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5396\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System:\u003c\/strong\u003e Contact-controlled distributor, standard rotation (not for Thunderbolt ignition systems)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine:\u003c\/strong\u003e 262 cid (4.3L) GM V-6, MerCruiser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum, Zinc, or Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 4.9 x 4.8 x 3.8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Distributor Cap, Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319142\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 205, 262\/V-6, 1985-1987, serial A331455-B775129\u003c\/li\u003e\n\u003cli\u003eMerCruiser 205 and 4.3LX 4bbl, 262\/V-6, 1985-1996, serial A331455-F802999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L (2bbl), 262\/V-6, 1988-1996, serial B773243-F802999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L (2bbl) (GEN+), 262\/V-6, 1998-2010, serial L010044 and up\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L EFI (GEN+) (TBI), 262\/V-6, 1999-2001, serial L360000-M299999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3LH (GEN+) (4bbl), 262\/V-6, 1998-2002, serial L010044-M614999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3LX (4bbl), 262\/V-6, 1988-1996, serial B775130-F802999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3LX (GEN+) (2bbl), 262\/V-6, 1996-1997, serial F803000-K999999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L\/LH\/LX\/LXH Alpha (GEN+), 1996-2001, serial F803000 and up\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L\/LH\/LX\/LXH Bravo (GEN+), 1996-2001, serial F803000 and up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCDI E64-0013\u003c\/li\u003e\n\u003cli\u003eGLM 71500\u003c\/li\u003e\n\u003cli\u003eMallory 9-29400\u003c\/li\u003e\n\u003cli\u003e11108A3\u003c\/li\u003e\n\u003cli\u003e13753A2\u003c\/li\u003e\n\u003cli\u003e815407A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5396 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5396 fits GM V-6 262 cid (4.3L) MerCruiser engines with a contact-controlled, standard-rotation distributor, including the 205, 4.3L (2bbl), 4.3LX (4bbl), 4.3LH (GEN+), and 4.3L\/LH\/LX\/LXH Alpha and Bravo (GEN+) model lines across the serial ranges listed for this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5396 replace Mercury Marine part 13753A2 or 815407A2?\u003c\/strong\u003e Yes, Sierra 18-5396 is a direct cross-reference for Mercury Marine\/MerCruiser 13753A2 and 815407A2, as well as 11108A3, CDI E64-0013, GLM 71500, and Mallory 9-29400.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cap work with a Thunderbolt IV or V ignition system?\u003c\/strong\u003e No. The Sierra 18-5396 is a contact-controlled, standard-rotation distributor cap and does not cover Thunderbolt ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5396 distributor cap made of?\u003c\/strong\u003e It is made of aluminum, zinc, or brass with a machined black exterior finish, matching the look and durability of the original MerCruiser cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5396 distributor cap weigh and what are its dimensions?\u003c\/strong\u003e The Sierra 18-5396 weighs 0.57 pounds and measures 4.9 x 4.8 x 3.8 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a gasket included with the 18-5396?\u003c\/strong\u003e Yes, each Sierra 18-5396 distributor cap ships with a gasket for a proper seal at installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5396 come with a rotor?\u003c\/strong\u003e No, the rotor is a separate part; Sierra's matching rotor for these MerCruiser 4.3L applications is part number 18-5432, ordered independently of the 18-5396 cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich MerCruiser serial number ranges use the 18-5396 cap?\u003c\/strong\u003e Serial ranges covered include A331455-B775129 on the 205 model, B773243-F802999 on the 4.3L (2bbl), L010044 and up on the 4.3L (2bbl) GEN+, and F803000 and up on the 4.3L\/LH\/LX\/LXH Alpha and Bravo GEN+ models, among others listed for this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5396 an OEM or aftermarket part?\u003c\/strong\u003e The 18-5396 is a Sierra aftermarket distributor cap built to meet or exceed the specifications of the original Mercury Marine\/MerCruiser equipment it replaces, including 13753A2 and 815407A2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-5396 have?\u003c\/strong\u003e The Sierra 18-5396 distributor cap has a black body with a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5396 distributor cap?\u003c\/strong\u003e The UPC for the Sierra 18-5396 distributor cap is 030999319142.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a different cap for MerCruiser 4.3L TBI engines?\u003c\/strong\u003e Yes, MerCruiser 4.3L 262 TBI (GEN+) engines from serial F803800-K999999 use a different tune-up kit (18-5443) rather than the 18-5396 cap used on the contact-controlled 4.3L applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212920539,"sku":"SIE-18-5396","price":27.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5396_lg__81234.1558127909.500.750.jpg?v=1785188981"},{"product_id":"sierra-18-5403-ignition-rotor-for-prestolite-7013-distributor-fits-ford-gm-6-8-cyl-replaces-mercruiser-392-9089-volvo-3853801","title":"Sierra 18-5403 Ignition Rotor for GM 6 and 8 Cylinder Engines with Prestolite Distributors, Replaces Mercury Marine 392-9089","description":"\u003cp\u003eThe Sierra 18-5403 is an ignition rotor engineered for GM 6 and 8 cylinder marine engines equipped with Prestolite conventional ignition distributors. The rotor mounts inside the distributor cap and rotates with the distributor shaft, directing the high-voltage spark from the coil to the correct spark plug wire terminal in firing order. A precise, machined exterior finish keeps electrical contact consistent, which supports reliable spark delivery and smoother engine performance during tune-ups or ignition system rebuilds.\u003c\/p\u003e\u003cp\u003eThis rotor is designed to work with Prestolite distributor numbers IBM-7011, IBM-7013, and IBM-7014A, covering GM 6 cylinder 3.8L engines as well as GM 8 cylinder 305, 350, and 454 cubic inch engines across the model years listed below. It is built as a direct equivalent to the original equipment rotor, meeting or exceeding the specifications of the parts it replaces, so it installs in place of the OEM component without modification. Each Sierra part is backed by Sierra's industry-leading customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5403\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Distributors:\u003c\/strong\u003e Prestolite IBM-7011, IBM-7013, IBM-7014A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e GM 6 and 8 cylinder engines with Prestolite conventional ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model Years:\u003c\/strong\u003e 1976-82, 1983-88, 1984-88 (by engine, see Fitment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319180\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 5 x 4 x 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1984-88, 6 cylinder, 3.8L engine, Distributor No. IBM-7014A\u003c\/li\u003e\n\u003cli\u003e1976-82, 8 cylinder, 305, 350, 454 engine, Distributor No. IBM-7011\u003c\/li\u003e\n\u003cli\u003e1983-88, 8 cylinder, 305, 350, 454 engine, Distributor No. IBM-7013\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eE65-0013\u003c\/li\u003e\n\u003cli\u003e41074\u003c\/li\u003e\n\u003cli\u003e41089\u003c\/li\u003e\n\u003cli\u003e71060\u003c\/li\u003e\n\u003cli\u003e71130\u003c\/li\u003e\n\u003cli\u003e9-29203\u003c\/li\u003e\n\u003cli\u003e9-29214\u003c\/li\u003e\n\u003cli\u003e392-9089\u003c\/li\u003e\n\u003cli\u003e392-9089T\u003c\/li\u003e\n\u003cli\u003e392-9767\u003c\/li\u003e\n\u003cli\u003e9089Q\u003c\/li\u003e\n\u003cli\u003eFI6900186\u003c\/li\u003e\n\u003cli\u003eFI6900190\u003c\/li\u003e\n\u003cli\u003e3853801\u003c\/li\u003e\n\u003cli\u003e982880\u003c\/li\u003e\n\u003cli\u003eR103004\u003c\/li\u003e\n\u003cli\u003e841907\u003c\/li\u003e\n\u003cli\u003e855845\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5403 rotor fit?\u003c\/strong\u003e The 18-5403 fits GM 6 cylinder 3.8L engines and GM 8 cylinder 305, 350, and 454 cubic inch engines that use a Prestolite conventional ignition distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich distributor numbers is this rotor designed for?\u003c\/strong\u003e This rotor is built for Prestolite distributor numbers IBM-7011, IBM-7013, and IBM-7014A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat model years does the 18-5403 rotor cover?\u003c\/strong\u003e Coverage depends on the engine: 1984-88 for the 6 cylinder 3.8L engine on distributor IBM-7014A, 1976-82 for the 8 cylinder 305, 350, and 454 engines on distributor IBM-7011, and 1983-88 for those same 8 cylinder engines on distributor IBM-7013.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5403 a direct replacement for the OEM rotor?\u003c\/strong\u003e Yes, the 18-5403 is designed to meet or exceed the original equipment rotor it replaces and installs in the same position without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5403 rotor cross-reference?\u003c\/strong\u003e It replaces OEM numbers including Mercury Marine 392-9089, 392-9089T, 392-9767, 9089Q, Crusader 41074, 41089, OMC 982880, Volvo Penta 3853801, 841907, 855845, Pleasurecraft R103004, GLM 71060, 71130, Mallory 9-29203, 9-29214, CDI E65-0013, and Mercruiser FI6900186, FI6900190.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of this rotor?\u003c\/strong\u003e The 18-5403 measures 5 x 4 x 1.25 inches and weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the exterior finish on the 18-5403 rotor?\u003c\/strong\u003e The 18-5403 has a machined exterior finish for consistent electrical contact inside the distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor work with Ford engines?\u003c\/strong\u003e No, the fitment data for the 18-5403 covers GM 6 and 8 cylinder engines only; Ford applications use a different Sierra rotor part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5403 covered under warranty?\u003c\/strong\u003e Yes, the 18-5403 rotor is covered under Sierra's customer satisfaction warranty, the same coverage applied across all Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat function does the 18-5403 rotor perform in the ignition system?\u003c\/strong\u003e It mounts on the distributor shaft and rotates to direct high-voltage spark from the ignition coil to each spark plug wire terminal in the correct firing order.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988212953307,"sku":"SIE-18-5403","price":8.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__31522.1753840680.500.750.jpg?v=1785188940"},{"product_id":"sierra-18-5397-marine-distributor-cap-for-ford-2-3l-marine-engines-with-mallory-distributor-1987-1990","title":"Sierra 18-5397 Marine Distributor Cap, Replaces Mercury Marine 815407A2, Fits Ford 2.3L with Mallory Distributor 1987-90","description":"\u003cp\u003eThe Sierra 18-5397 Distributor Cap is a direct-fit replacement distributor cap engineered for marine ignition systems that use a Mallory-style distributor, specifically the Ford 2.3L engine with Mallory Distributor covering 1987-90 applications. It is built from metal with a machined exterior finish and a white cap body, and it uses a twist-on closure for a secure, weather-resistant seal at the distributor housing. As a Sierra Marine part, it is engineered to meet the demands of high horsepower marine engines and is built to stand up to the harsh marine environment, meeting or exceeding the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003eThis cap is a straightforward tune-up and ignition-maintenance component, restoring a proper seal and secure electrical connection point for the distributor rotor and spark plug wires. It ships as a single Sierra 18-5397 Distributor Cap, ready to install in place of a worn, cracked, or corroded original cap.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5397\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 8 x 6 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.22 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Ford 2.3L with Mallory Distributor, 1987-90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury Marine 815407A2, Mallory 9-29418, OMC 985218\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFord 2.3L with Mallory Distributor, 1987-90\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 815407A2\u003c\/li\u003e\n\u003cli\u003eMallory 9-29418\u003c\/li\u003e\n\u003cli\u003eOMC 985218\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5397 distributor cap fit?\u003c\/strong\u003e The Sierra 18-5397 Distributor Cap fits the Ford 2.3L engine equipped with a Mallory distributor, covering 1987-90 applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5397 a direct OEM replacement?\u003c\/strong\u003e Yes, the Sierra 18-5397 Distributor Cap directly replaces Mercury Marine 815407A2, Mallory 9-29418, and OMC 985218, so it installs in place of any of those original caps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5397 distributor cap made from?\u003c\/strong\u003e It is made from metal with a machined exterior finish and a white cap body, matching the construction of the original Mallory-style cap it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The Sierra 18-5397 uses a twist-on closure, which locks the cap securely onto the distributor housing to keep out moisture and debris.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5397 distributor cap?\u003c\/strong\u003e The Sierra 18-5397 Distributor Cap measures 8 x 6 x 4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5397 distributor cap weigh?\u003c\/strong\u003e It weighs 0.22 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the Sierra 18-5397?\u003c\/strong\u003e The package includes one Sierra 18-5397 Distributor Cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Mercury Marine 815407A2 cap work as a substitute for the Sierra 18-5397?\u003c\/strong\u003e Yes, Mercury Marine 815407A2 is one of the OEM numbers the Sierra 18-5397 Distributor Cap directly replaces, along with Mallory 9-29418 and OMC 985218.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5397 built for marine use specifically?\u003c\/strong\u003e Yes, the Sierra 18-5397 Distributor Cap is engineered to meet the demands of high horsepower marine engines and is built to hold up in the harsh marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-5397 replace an OMC distributor cap?\u003c\/strong\u003e Yes, the Sierra 18-5397 Distributor Cap replaces OMC part number 985218.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should this distributor cap be replaced?\u003c\/strong\u003e A cracked, corroded, or worn distributor cap should be replaced as part of routine ignition tune-up maintenance, and the Sierra 18-5397 is the direct-fit replacement for the Ford 2.3L Mallory distributor setup covered by this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-5397 cross-reference to a Mallory part number?\u003c\/strong\u003e Yes, it replaces Mallory 9-29418.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213117147,"sku":"SIE-18-5397","price":52.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5397_lg__46071.1558127975.500.750.jpg?v=1785189184"},{"product_id":"sierra-18-5404-1-distributor-rotor-for-mallory-conventional-ignition-ford-gm-v-8-replaces-mercruiser-391-5088-omc-982211","title":"Sierra 18-5404-1 Distributor Rotor for Ford \u0026 GM V-8 Engines with Mallory Conventional Ignition","description":"\u003cp\u003eThe Sierra 18-5404-1 is a machined distributor rotor built for Ford and GM V-8 engines equipped with Mallory Conventional Ignition, including all Mallory distributors dated 1998 and below. It mounts in the rear position of the distributor and is engineered as a direct-fit replacement rotor that meets or exceeds the performance of the original equipment part it replaces. The rotor works alongside a matching cap and condenser as part of a complete inboard tune-up lineup, helping restore accurate spark distribution and consistent ignition timing across the RPM range.\u003c\/p\u003e\u003cp\u003eCompact and precisely machined to 0.39 x 0.39 x 0.39 inches, the 18-5404-1 is designed for durability under the heat and vibration typical of marine inboard engine compartments. It cross-references to a wide range of OEM and aftermarket part numbers, making it a straightforward replacement for boat owners servicing Chris-Craft, Chrysler, Crusader, Evinrude\/Johnson, Mercruiser, OMC, and Pleasurecraft inboard ignition systems that share the same Mallory Conventional Ignition architecture.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5404-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282244392\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Distributor Rotor (Chrysler Inboard Tune Up Kit component)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Ford \u0026amp; GM V-8 Engines With Mallory Conventional Ignition; All Mallory 1998 \u0026amp; below\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFord \u0026amp; GM V-8 Engines With Mallory Conventional Ignition\u003c\/li\u003e\n\u003cli\u003eAll Mallory distributors, 1998 and below\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChris-Craft 16.69-00149\u003c\/li\u003e\n\u003cli\u003eChrysler 868096\u003c\/li\u003e\n\u003cli\u003eCrusader 20223\u003c\/li\u003e\n\u003cli\u003eGLM 71040\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 982211\u003c\/li\u003e\n\u003cli\u003eMallory 9-29207\u003c\/li\u003e\n\u003cli\u003eMercruiser 391-5088\u003c\/li\u003e\n\u003cli\u003eMercruiser 391-7057\u003c\/li\u003e\n\u003cli\u003eMercruiser 391-7057T\u003c\/li\u003e\n\u003cli\u003eMercruiser 391-898253029\u003c\/li\u003e\n\u003cli\u003eMercruiser 8M001224\u003c\/li\u003e\n\u003cli\u003eFI6900149\u003c\/li\u003e\n\u003cli\u003eOMC 982211\u003c\/li\u003e\n\u003cli\u003ePleasurecraft R103001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5404-1 rotor fit?\u003c\/strong\u003e The 18-5404-1 fits Ford and GM V-8 engines equipped with Mallory Conventional Ignition, as well as all Mallory distributors dated 1998 and below.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5404-1 compatible with OEM Mercruiser rotors?\u003c\/strong\u003e Yes, the 18-5404-1 cross-references to several Mercruiser numbers including 391-5088, 391-7057, 391-7057T, 391-898253029, and 8M001224.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this rotor replace?\u003c\/strong\u003e The Sierra 18-5404-1 replaces Chris-Craft 16.69-00149, Chrysler 868096, Crusader 20223, GLM 71040, Evinrude\/Johnson 982211, Mallory 9-29207, Mercruiser 391-5088, 391-7057, 391-7057T, 391-898253029, 8M001224, FI6900149, OMC 982211, and Pleasurecraft R103001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5404-1 rotor?\u003c\/strong\u003e This rotor measures 0.39 x 0.39 x 0.39 inches and weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does the rotor mount in the distributor?\u003c\/strong\u003e The 18-5404-1 is designed to mount in the rear position of the distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor work with Chrysler inboard engines?\u003c\/strong\u003e Yes, the 18-5404-1 is part of the Chrysler Inboard Tune Up Kit lineup and cross-references to Chrysler part number 868096.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a matching cap and condenser available for this rotor?\u003c\/strong\u003e Yes, the 18-5404-1 rotor is paired with a matching Sierra distributor cap (18-5376) and condenser (18-5338) as part of the same tune-up lineup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-5404-1 compare to the original equipment rotor?\u003c\/strong\u003e The Sierra 18-5404-1 is built to meet or exceed the performance of the original equipment rotor it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-5404-1 rotor have?\u003c\/strong\u003e The rotor has a machined exterior finish for a precise fit and consistent electrical contact.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor fit a Mallory distributor made after 1998?\u003c\/strong\u003e No, the 18-5404-1 is designed to fit all Mallory distributors dated 1998 and below, not later models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5404-1 fit Crusader or Evinrude\/Johnson engines?\u003c\/strong\u003e Yes, it cross-references to Crusader part number 20223 and Evinrude\/Johnson part number 982211.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5404-1 rotor?\u003c\/strong\u003e The Sierra 18-5404-1 distributor rotor has UPC 808282244392.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213182683,"sku":"SIE-18-5404-1","price":8.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5404-1__07033.1722490933.500.750.jpg?v=1785188057"},{"product_id":"distributor-cap-for-mercruiser-thunderbolt-iv-v-hei-v-8-replaces-805759t3-16457a4-sierra-18-5395-includes-gasket","title":"Sierra Distributor Cap 18-5395 with Gasket, Replaces Mercury Marine 805759T1, for GM V-8 Thunderbolt IV \u0026 V HEI Ignitions","description":"\u003cp\u003eThe Sierra 18-5395 Distributor Cap is a direct-fit ignition component for GM V-8 marine engines equipped with Thunderbolt IV and Thunderbolt V HEI ignition systems. It ships complete with the gasket needed for installation, so there is no need to source a separate seal. The cap is built with a moisture-proof, molded insulator body and a high-quality conductive center carrier that maintains consistent conductor integrity for reliable spark delivery.\u003c\/p\u003e\u003cp\u003eThis is part of Sierra's MAGFORCE-compatible ignition lineup, engineered to be \"electronics friendly\" so it protects onboard electronic devices and electronic engine controls from RFI and EMI interference while still delivering maximum voltage to the ignition system. The cap features a black machined metal housing with a twist-on closure for a secure, exact-fit installation that seats correctly against the distributor body every time.\u003c\/p\u003e\u003cp\u003eThe 18-5395 is used across several MerCruiser stern-drive applications with 540 and 572 cubic inch V-8 engines, including the 500 Bulldog, 575, and 800 SC models. Every Sierra part is built to meet or exceed the performance of the original equipment part it replaces, and it is backed by Sierra's standard limited warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5395\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Distributor Cap, Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Type:\u003c\/strong\u003e Twist-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.82 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e GM V-8 Engines With Thunderbolt IV \u0026amp; V HEI Ignitions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 805759T1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319135\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 500 Bulldog, 540 cid V-8, 1990-2001\u003c\/li\u003e\n\u003cli\u003eMerCruiser 575, 540 cid V-8, 1986-1992\u003c\/li\u003e\n\u003cli\u003eMerCruiser 800 SC, 572 cid V-8, 1993-1998\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 805759T1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5395 distributor cap fit?\u003c\/strong\u003e The 18-5395 is designed for GM V-8 engines equipped with Thunderbolt IV and Thunderbolt V HEI ignition systems, and it is used on MerCruiser 500 Bulldog, 575, and 800 SC applications with 540 and 572 cubic inch V-8 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5395 distributor cap include the gasket?\u003c\/strong\u003e Yes, the Sierra 18-5395 comes with the gasket included, so no separate gasket purchase is needed for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM equivalent for part number 18-5395?\u003c\/strong\u003e Sierra 18-5395 cross-references to Mercury Marine part number 805759T1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5395 distributor cap made from?\u003c\/strong\u003e It is made from black machined metal with a moisture-proof, molded insulator construction and a conductive center carrier for consistent conductor integrity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the cap attach to the distributor?\u003c\/strong\u003e The 18-5395 uses a twist-on closure design for a secure, exact-fit installation on GM V-8 distributors with Thunderbolt IV\/V HEI ignitions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-5395 distributor cap?\u003c\/strong\u003e The cap measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5395 weigh?\u003c\/strong\u003e The distributor cap weighs 0.82 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5395 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket Sierra replacement part engineered to meet or exceed the performance of the original equipment distributor cap it replaces, including the Mercury Marine 805759T1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5395 protect onboard electronics from interference?\u003c\/strong\u003e Yes, this cap is built to be electronics friendly, shielding electronic devices and electronic engine controls from RFI and EMI while still delivering maximum voltage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat MerCruiser models use the 18-5395 distributor cap?\u003c\/strong\u003e It is used on the MerCruiser 500 Bulldog (1990-2001), 575 (1986-1992), and 800 SC (1993-1998), all 540 or 572 cubic inch V-8 configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a warranty included with the 18-5395 distributor cap?\u003c\/strong\u003e Yes, the Sierra 18-5395 is covered under Sierra's standard limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213215451,"sku":"SIE-18-5395","price":42.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5395_lg__69545.1558127815.500.750.jpg?v=1785188581"},{"product_id":"sierra-18-5407-marine-ignition-rotor-replaces-mercruiser-392-6326-omc-980892-fits-prestolite-8-cylinder-distributors","title":"Sierra 18-5407 Marine Distributor Rotor for Prestolite 8-Cylinder Ignition, Replaces 392-6326","description":"\u003cp\u003eThe Sierra 18-5407 is a marine distributor rotor engineered for Prestolite 8-cylinder ignition systems. It is the rotor component of the Sierra 18-5250 tune-up kit, which also includes a matching contact set (18-5303) and condenser (18-5345), so it is built to work as part of a complete ignition service rather than as a standalone guess-fit part. The rotor features a machined exterior finish for accurate, repeatable contact within the distributor cap, helping maintain correct spark timing and distribution to each cylinder.\u003c\/p\u003e\u003cp\u003eThis rotor is a direct fit for engines using a Prestolite 8-cylinder distributor and cross-references to a wide range of OEM and aftermarket part numbers used across Chrysler Inboard, Crusader, Mercury Marine\/Mercruiser, OMC, and Pleasurecraft applications, making it a practical replacement when the original part number is hard to find. Sierra manufactures the part to meet or exceed original equipment quality standards, using marine-grade materials suited to the moisture and vibration a boat engine compartment sees. Because ignition timing accuracy depends on a properly seated, correctly sized rotor, installers should confirm the part number against the distributor being serviced before installing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5407\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Prestolite 8 cyl.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune-Up Kit Component Of:\u003c\/strong\u003e 18-5250\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 1.06 x 4 x 5.12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319197\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eEngines equipped with a Prestolite 8-cylinder distributor\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCDI E65-0011\u003c\/li\u003e\n\u003cli\u003eChrysler Inboard 1658535\u003c\/li\u003e\n\u003cli\u003eCrusader 41059\u003c\/li\u003e\n\u003cli\u003eGLM 71050\u003c\/li\u003e\n\u003cli\u003eMallory 9-29201\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 392-6326\u003c\/li\u003e\n\u003cli\u003e392-6326T\u003c\/li\u003e\n\u003cli\u003eFI6900044\u003c\/li\u003e\n\u003cli\u003eOMC Inboard 980892\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 980892\u003c\/li\u003e\n\u003cli\u003ePleasurecraft R103003\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5407 rotor fit?\u003c\/strong\u003e It is designed for engines that use a Prestolite 8-cylinder distributor, and it is the rotor included in the Sierra 18-5250 tune-up kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5407 the same as the OEM 392-6326 rotor?\u003c\/strong\u003e Yes, 392-6326 and 392-6326T are among the OEM numbers the 18-5407 rotor replaces, along with Chrysler Inboard 1658535, Crusader 41059, GLM 71050, Mallory 9-29201, FI6900044, OMC 980892, and Pleasurecraft R103003.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-5407 rotor made of, and how is it finished?\u003c\/strong\u003e The rotor has a machined exterior finish, giving it precise, repeatable contact inside the distributor cap for accurate spark distribution.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of this rotor?\u003c\/strong\u003e The Sierra 18-5407 measures 1.06 x 4 x 5.12 inches and weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5407 come with a contact set and condenser?\u003c\/strong\u003e No, the rotor is sold on its own with part number 18-5407, but it is also the rotor component used in the Sierra 18-5250 tune-up kit alongside a separate contact set (18-5303) and condenser (18-5345).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor work with a Delco distributor instead of a Prestolite one?\u003c\/strong\u003e The 18-5407 is built for Prestolite 8-cylinder distributors; a different rotor is used for Delco 4 and 6-cylinder distributor setups, so confirm your distributor type before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5407 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e It is a genuine Sierra International part, manufactured to meet or exceed original equipment quality standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my old rotor matches the 18-5407?\u003c\/strong\u003e Check your existing rotor or distributor for any of the cross-reference numbers this part replaces, including 392-6326, 1658535, 41059, 71050, 9-29201, 980892, or R103003; a match confirms the 18-5407 is the correct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the distributor rotor on a marine engine?\u003c\/strong\u003e A rotor like the Sierra 18-5407 is typically replaced during a routine ignition tune-up alongside the contact set and condenser, since worn rotor contacts can cause misfires or hard starting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5407 rotor?\u003c\/strong\u003e The Sierra 18-5407 rotor carries UPC 030999319197.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213412059,"sku":"SIE-18-5407","price":12.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5407_lg__47672.1558128418.500.750.jpg?v=1785187990"},{"product_id":"sierra-18-5418-distributor-rotor-for-gm-4-cylinder-single-point-ignition-replaces-chris-craft-16-69-00051-and-omc-384735","title":"Sierra Distributor Rotor 18-5418 for MerCruiser 110\/120\/140 I\/O Ignition, Replaces Mercury Marine 58217","description":"\u003cp\u003eThe Sierra 18-5418 is a distributor rotor built for MerCruiser stern drive ignition systems using a contact-controlled distributor with standard rotation (this rotor is not for Thunderbolt ignition applications). It is the rotor position specified in the MerCruiser tune-up parts breakdown for the 110, 120, and 140 model engines, all of which use a 4-cylinder inline engine (153 cid or 181 cid) paired with a points-and-condenser style distributor. The rotor mounts inside the distributor cap and rotates with the distributor shaft to direct spark from the coil to each spark plug tower in firing order, so a worn, cracked, or burned rotor tip is a common cause of misfires, hard starting, or a rough idle on these engines.\u003c\/p\u003e\u003cp\u003eAs part of a complete tune-up, the 18-5418 rotor is typically replaced alongside the contact set, distributor cap, coil, and spark plug wires that share the same engine application. It is sold as a direct-fit component for the MerCruiser 110, 120, and 140 model engines within the serial number ranges covered by those models, and it cross-references to OEM rotors used by Chris-Craft, Mercury Marine, and OMC on the same ignition platform.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5418\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Contact-controlled distributor, standard rotation, excludes Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Engines:\u003c\/strong\u003e 153 cid L4, 181 cid L4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Models:\u003c\/strong\u003e MerCruiser 110, 120, 140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 1 x 1 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236708\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 110, 153 cid L4, years 1963-1966, serial number range 1537370-2044033\u003c\/li\u003e\n\u003cli\u003eMerCruiser 120, 153 cid L4, years 1964-1986, serial number range 1666601-B531853\u003c\/li\u003e\n\u003cli\u003eMerCruiser 140, 181 cid L4, years 1968-1986, serial number range 2508261-B450800\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChris-Craft 16.69-00051\u003c\/li\u003e\n\u003cli\u003eMercury Marine 58217\u003c\/li\u003e\n\u003cli\u003eOMC 384735\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5418 rotor fit?\u003c\/strong\u003e The 18-5418 rotor fits MerCruiser 110, 120, and 140 model engines, which use a 153 cid or 181 cid L4 engine paired with a contact-controlled distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor work with a Thunderbolt ignition system?\u003c\/strong\u003e No, the 18-5418 rotor is built for contact-controlled distributors with standard rotation and is not intended for Thunderbolt ignition applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM equivalent of Sierra part 18-5418?\u003c\/strong\u003e Sierra 18-5418 cross-references to Chris-Craft 16.69-00051, Mercury Marine 58217, and OMC 384735, making it a direct replacement for those OEM rotors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5418 rotor weigh?\u003c\/strong\u003e The Sierra 18-5418 distributor rotor weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this rotor?\u003c\/strong\u003e The 18-5418 rotor measures 1 x 1 x 2 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial number range applies to the MerCruiser 120 with this rotor?\u003c\/strong\u003e For the MerCruiser 120, the 18-5418 rotor applies to serial number range 1666601 through B531853, covering years 1964-1986.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this rotor sold individually or as part of a kit?\u003c\/strong\u003e The 18-5418 is sold as an individual rotor; it is one of the components listed in the MerCruiser tune-up parts breakdown alongside the contact set, distributor cap, coil, and spark plug wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years does the 18-5418 rotor cover for the MerCruiser 110?\u003c\/strong\u003e For the MerCruiser 110, the 18-5418 rotor covers model years 1963-1966, within serial number range 1537370-2044033.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5418 rotor fit the MerCruiser 140?\u003c\/strong\u003e Yes, the MerCruiser 140 (181 cid L4) uses the 18-5418 rotor for model years 1968-1986, serial number range 2508261-B450800.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a distributor rotor needs replacement?\u003c\/strong\u003e A worn, cracked, or burned rotor tip on the ignition system that the 18-5418 fits can cause misfires, hard starting, or a rough idle, since the rotor directs spark from the coil to each spark plug in firing order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5418 a genuine or aftermarket part?\u003c\/strong\u003e The 18-5418 is a Sierra-brand replacement rotor manufactured to match the fit and function of the original Chris-Craft, Mercury Marine, and OMC rotors it cross-references.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213510363,"sku":"SIE-18-5418","price":4.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5418_lg__04803.1558128628.500.750.jpg?v=1785188045"},{"product_id":"sierra-18-5406-distributor-rotor-for-gm-4-cylinder-delco-est-ignition-replaces-omc-986651-mercruiser-811636","title":"Sierra 18-5406 Delco Distributor Rotor, Replaces OMC 986651, for GM 4 Cylinder Marine Engines with Delco EST Ignition","description":"\u003cp\u003eThe Sierra 18-5406 is a Delco-style distributor rotor built as a direct replacement for marine ignition systems using a Delco EST distributor. It mounts inside the distributor cap and rotates with the distributor shaft to direct high-voltage current from the coil to each spark plug lead in firing order, making it a core wear item in any tune-up or ignition service. The rotor is designed to fit GM 4 cylinder engines equipped with Delco EST ignition, a common configuration on inboard marine powerplants. Its contact surface has a machined finish for reliable, consistent electrical contact with the distributor cap terminals. Sierra engineers this rotor to meet or exceed the performance of the original equipment part it replaces, and it cross-references directly to OMC, GLM, Mallory, Mercruiser, and Volvo Penta part numbers, so it is a straightforward swap whether you are doing a routine ignition tune-up or replacing a worn or cracked rotor. As with all Sierra parts, it is intended to restore factory ignition performance and is backed by Sierra's standard product warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5406\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Distributor Rotor (Delco style)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM 4 Cylinder marine engines with Delco EST ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563736\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis rotor fits GM 4 Cylinder marine engines equipped with Delco EST ignition.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 986651\u003c\/li\u003e\n\u003cli\u003eGLM 71120\u003c\/li\u003e\n\u003cli\u003eMallory 9-29220\u003c\/li\u003e\n\u003cli\u003eMercruiser 811636\u003c\/li\u003e\n\u003cli\u003eMercruiser 898253011\u003c\/li\u003e\n\u003cli\u003eMercruiser 811636-1\u003c\/li\u003e\n\u003cli\u003eMercruiser 8M001254\u003c\/li\u003e\n\u003cli\u003eMercruiser 802468\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3854261\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5406 rotor fit?\u003c\/strong\u003e The Sierra 18-5406 is designed for GM 4 Cylinder marine engines equipped with Delco EST ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5406 a genuine OEM part or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket replacement rotor, engineered to meet or exceed the performance of the original equipment rotor it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5406 rotor cross-reference to?\u003c\/strong\u003e The Sierra 18-5406 replaces OMC 986651, GLM 71120, Mallory 9-29220, Mercruiser 811636, 898253011, 811636-1, and 8M001254, Mercruiser 802468, and Volvo Penta 3854261.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5406 distributor rotor weigh?\u003c\/strong\u003e The Sierra 18-5406 rotor weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the rotor's contact surface have?\u003c\/strong\u003e The Sierra 18-5406 rotor has a machined finish on its contact surface for consistent electrical contact inside the distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part number 18-5406?\u003c\/strong\u003e The order includes one Sierra 18-5406 rotor; a matching Sierra distributor cap is sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor work with a Delco EST distributor cap from another brand?\u003c\/strong\u003e Yes, the Sierra 18-5406 is a Delco-style rotor that cross-references to OMC, GLM, Mallory, Mercruiser, and Volvo Penta equivalents, so it fits distributor caps built for those same Delco EST applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the distributor rotor be replaced?\u003c\/strong\u003e A distributor rotor like the Sierra 18-5406 should be replaced during a routine ignition tune-up or whenever the contact tip shows wear, pitting, or cracking that can cause misfires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra offer a warranty on the 18-5406 rotor?\u003c\/strong\u003e Yes, the Sierra 18-5406 rotor is covered under Sierra's standard product warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-5406 rotor straightforward?\u003c\/strong\u003e The Sierra 18-5406 is a direct-fit replacement rotor that installs onto the distributor shaft in place of the original Delco-style rotor, using the same mounting configuration as the OEM part.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213575899,"sku":"SIE-18-5406","price":6.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5406_lg__45826.1558128354.500.750.jpg?v=1785189068"},{"product_id":"marine-distributor-rotor-for-new-gm-style-module-in-cap-v-8-distributors-replaces-mercruiser-898253010-and-omc-volvo-penta-3854549-sierra-18-5405","title":"Sierra 18-5405 Ignition Rotor for MerCruiser 350 MAG MPI V-8, GM Module-in-Cap Distributors","description":"\u003cp\u003eThe Sierra 18-5405 is an ignition distributor rotor built for GM-style \"module in cap\" V-8 distributor applications, including MerCruiser 350 MAG MPI engines equipped with contact-controlled distributors running standard rotation (this rotor does not apply to Thunderbolt ignition systems). The rotor is the component inside the distributor cap that spins with the distributor shaft to route the high-voltage spark from the ignition coil to the correct spark plug wire terminal in firing order, so its fit and contact geometry directly affect spark timing and engine reliability.\u003c\/p\u003e\u003cp\u003eFinished in white, the rotor measures 3 x 2 x 2 inches and weighs 0.06 pounds, making it a compact, easy-to-stock replacement part for a tune-up or distributor cap and rotor service. It is manufactured to meet or exceed the specifications of the original equipment part it replaces, and is commonly paired with a matching distributor cap, contact set, and ignition coil when performing a full ignition tune-up on covered engines.\u003c\/p\u003e\u003cp\u003eThis rotor is confirmed for MerCruiser 350 MAG MPI (GEN +) 350 cid V-8 engines, model year 1998 within serial number range L010019-L325962; 350 MAG MPI MIE (GEN +) 350 cid V-8 engines, model year 1998 within serial number range L002008-L302199; and 350 MAG MPI SKI 350 cid V-8 engines, model years 1995-1998 within serial number range F350583-L304599.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5405\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563729\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 3 x 2 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System Type:\u003c\/strong\u003e Contact controlled distributor, standard rotation, excludes Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Style:\u003c\/strong\u003e GM style module in cap, V-8 application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI (GEN +) 350\/V-8, 1998, Serial L010019-L325962\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI MIE (GEN +) 350\/V-8, 1998, Serial L002008-L302199\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG MPI SKI 350\/V-8, 1995-1998, Serial F350583-L304599\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader 38071\u003c\/li\u003e\n\u003cli\u003eGLM 71100\u003c\/li\u003e\n\u003cli\u003eMallory 9-29209\u003c\/li\u003e\n\u003cli\u003eMercruiser 898253010\u003c\/li\u003e\n\u003cli\u003eMercruiser 808484-1\u003c\/li\u003e\n\u003cli\u003eMercruiser 804423\u003c\/li\u003e\n\u003cli\u003eMercruiser 8M6001253\u003c\/li\u003e\n\u003cli\u003eOMC 3854549\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3854549-7\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3862014\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5405 rotor used for?\u003c\/strong\u003e The Sierra 18-5405 is an ignition distributor rotor that mounts inside the distributor cap and routes spark from the coil to each spark plug wire terminal in firing order, and it is designed for GM style module in cap V-8 distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5405 rotor fit my MerCruiser 350 MAG MPI?\u003c\/strong\u003e Yes, on the 350 MAG MPI (GEN +) 350\/V-8 built in 1998 within serial number range L010019-L325962, and on the 350 MAG MPI MIE (GEN +) 350\/V-8 also built in 1998 within serial number range L002008-L302199 - check your engine serial number against these ranges before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5405 rotor work on MerCruiser 350 MAG MPI SKI engines?\u003c\/strong\u003e Yes, the Sierra 18-5405 covers the 350 MAG MPI SKI 350\/V-8, model years 1995-1998, within serial number range F350583-L304599.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor work with Thunderbolt ignition systems?\u003c\/strong\u003e No, the Sierra 18-5405 is built for contact controlled distributors with standard rotation and specifically excludes Thunderbolt ignition applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5405 rotor replace?\u003c\/strong\u003e It is interchangeable with Crusader 38071, GLM 71100, Mallory 9-29209, Mercruiser 898253010, 808484-1, and 804423, 8M6001253, OMC 3854549, and Volvo Penta 3854549-7 and 3862014.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and material is the 18-5405 rotor?\u003c\/strong\u003e The rotor is white and is sized at 3 x 2 x 2 inches, weighing 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5405 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket replacement rotor manufactured by Sierra to meet or exceed the specifications of the original equipment rotor it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rotors come in a package of the 18-5405?\u003c\/strong\u003e One Sierra 18-5405 rotor is included per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of distributor does the 18-5405 rotor fit?\u003c\/strong\u003e It fits GM style module in cap distributors used in V-8 applications, specifically contact controlled distributors running standard rotation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace the distributor cap at the same time as the 18-5405 rotor?\u003c\/strong\u003e During a full ignition tune-up, the rotor is commonly replaced alongside the distributor cap, contact set, and coil to restore complete ignition performance, though the 18-5405 itself is sold as the rotor only.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213674203,"sku":"SIE-18-5405","price":13.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__01083.1753840681.500.750.jpg?v=1785189068"},{"product_id":"sierra-18-5428-distributor-rotor-for-volvo-penta-ignition-replaces-oem-243903","title":"Sierra Distributor Rotor 18-5428, OEM 243903, Volvo Penta I\/O Ignition, Bosch 4 Cylinder Distributors","description":"\u003cp\u003eThe Sierra 18-5428 is a distributor rotor built for Volvo Penta I\/O ignition systems using Bosch 4 cylinder distributors. The rotor is the component inside the distributor cap that spins on the distributor shaft and directs the high-voltage spark from the ignition coil to the correct spark plug wire terminal in firing order. A worn, pitted, or cracked rotor causes misfires, hard starting, rough idle, or a no-start condition, so it is a standard wear item to replace along with the distributor cap and points during a tune-up.\u003c\/p\u003e\u003cp\u003eThis rotor is designed as a direct fit for Bosch 4 cylinder distributors used in Volvo Penta I\/O (inboard\/outboard) applications, and it corresponds to the original 243903 part number. It is a lightweight, precision-molded component sized to match factory tolerances for correct spark timing and contact alignment inside the distributor cap.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5428\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e I\/O - Volvo Penta Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Bosch 4 cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eVolvo Penta I\/O ignition systems with Bosch 4 cylinder distributors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e243903\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5428 rotor used for?\u003c\/strong\u003e The Sierra 18-5428 is a distributor rotor that fits inside the distributor cap and directs spark from the ignition coil to each spark plug wire in firing order, used on Volvo Penta I\/O ignition systems with Bosch 4 cylinder distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5428 rotor fit Volvo Penta engines?\u003c\/strong\u003e Yes, the 18-5428 rotor is designed for Volvo Penta I\/O ignition systems that use a Bosch 4 cylinder distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-5428 replace?\u003c\/strong\u003e The Sierra 18-5428 rotor corresponds to OEM part number 243903.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5428 rotor weigh?\u003c\/strong\u003e The 18-5428 rotor weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5428 rotor work with a Delco distributor?\u003c\/strong\u003e No, the 18-5428 rotor is built for Bosch 4 cylinder distributors used in Volvo Penta I\/O ignition systems, not Delco distributor applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should a distributor rotor like the 18-5428 be replaced?\u003c\/strong\u003e A distributor rotor should be replaced when it shows pitting, burn marks, or cracking, or as part of a routine ignition tune-up alongside the distributor cap, since a worn rotor causes misfires, rough idle, or hard starting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5428 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-5428 is an aftermarket replacement rotor manufactured to match the fit and function of OEM part 243903.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5428?\u003c\/strong\u003e The 18-5428 order includes one distributor rotor; it does not include the distributor cap, condenser, or other tune-up components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-5428 rotor and the 18-5402 rotor?\u003c\/strong\u003e The 18-5428 rotor is designed for Bosch 4 cylinder distributors in Volvo Penta I\/O ignition systems, while the 18-5402 rotor is a different part designed for Delco EST V-8 distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-5428 rotor myself?\u003c\/strong\u003e Yes, the 18-5428 rotor is a standard distributor component that installs onto the distributor shaft in place of the old rotor, a task commonly done during routine ignition maintenance.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213706971,"sku":"SIE-18-5428","price":14.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5428_lg__69090.1558128908.500.750.jpg?v=1785329155"},{"product_id":"distributor-rotor-for-chrysler-inboard-v8-replaces-oem-868095-fits-prestolite-8-cylinder-marine-distributors","title":"Sierra Rotor 18-5430 for Chrysler Marine 6-Cylinder HCS, LHS Engines (Replaces Chrysler Inboard 868095)","description":"\u003cp\u003eThe Sierra Rotor 18-5430 is a distributor rotor engineered for Chrysler Marine 6-cylinder inboard engines, including the HCS and LHS models. As part of the distributor cap and rotor assembly, the rotor rotates inside the distributor cap and directs high-voltage current from the ignition coil to the correct spark plug terminal in firing order, making it a core component of a proper ignition tune-up. Replacing a worn, cracked, or burned rotor restores consistent spark distribution, which helps prevent misfires, hard starting, and rough idle caused by a deteriorated ignition contact.\u003c\/p\u003e\u003cp\u003eThis rotor is manufactured to fit the same mounting and contact specifications as the original Chrysler Marine equipment, allowing for straightforward installation as part of a routine tune-up or ignition system service. It is commonly replaced alongside the distributor cap, points, and condenser on 6-cylinder HCS and LHS Chrysler Marine inboard engines. The Sierra Rotor 18-5430 carries the Sierra brand's part number 18-5430 and cross-references to Chrysler Inboard part number 868095.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5430\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319296\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Rotor (1 count)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e CHRYSLER INBOARD 868095\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 1955-57 6-cylinder Chrysler Marine HCS, LHS\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1955-57 Chrysler Marine 6-cylinder HCS, LHS inboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eChrysler Inboard 868095\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra Rotor 18-5430 fit?\u003c\/strong\u003e The Sierra Rotor 18-5430 fits 1955-57 Chrysler Marine 6-cylinder inboard engines, specifically the HCS and LHS models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5430 rotor an OEM replacement or aftermarket part?\u003c\/strong\u003e It is an aftermarket rotor manufactured by Sierra to cross-reference with Chrysler Inboard part number 868095, giving it the same fit and function as the original equipment rotor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-5430 replace?\u003c\/strong\u003e This rotor replaces Chrysler Inboard part number 868095 on applicable 6-cylinder HCS and LHS Chrysler Marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5430 rotor weigh?\u003c\/strong\u003e It weighs 0.04 pounds, consistent with a small distributor rotor component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part 18-5430?\u003c\/strong\u003e Each order includes one Sierra Rotor, part number 18-5430; the distributor cap, points, and condenser are separate components not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the rotor on my Chrysler Marine engine?\u003c\/strong\u003e The rotor should be replaced whenever it shows burning, pitting, or cracking at the contact tip, or as part of a routine ignition tune-up alongside the distributor cap, points, and condenser.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-5430 rotor myself?\u003c\/strong\u003e Yes, the Sierra Rotor 18-5430 is designed to install the same way as the original Chrysler equipment rotor, making it a straightforward part of a distributor tune-up on 6-cylinder HCS and LHS engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5430 rotor made from?\u003c\/strong\u003e The dossier for this Sierra 18-5430 rotor does not specify the exact material composition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5430 rotor fit both 4-cylinder and 6-cylinder Chrysler Marine engines?\u003c\/strong\u003e No, part 18-5430 is designated for the 1955-57 6-cylinder Chrysler Marine HCS and LHS engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra Rotor 18-5430?\u003c\/strong\u003e The UPC for this Sierra Rotor is 030999319296.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988213805275,"sku":"SIE-18-5430","price":6.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5430_lg__28294.1558129049.500.750.jpg?v=1785188898"},{"product_id":"sierra-18-5408-distributor-rotor-replaces-mercruiser-850485-omc-volvo-penta-3854311-fits-gm-v6-module-in-cap-distributors","title":"Sierra 18-5408 Distributor Rotor for GM Module in Cap V-6 Distributors, Replaces Mercruiser 850485","description":"\u003cp\u003eThe Sierra 18-5408 Rotor is a distributor rotor built for New GM Style \"Module in Cap\" distributors used in V-6 applications. It is designed to work as a matched pair with the 18-5354 distributor cap, forming the ignition rotor\/cap combination that directs spark to the correct cylinder in sequence as the distributor shaft turns. The rotor is constructed of alloy steel with a machined finish for a precise, reliable fit inside the distributor cap and consistent electrical contact against the cap's terminals.\u003c\/p\u003e\u003cp\u003eThis part is intended as a direct service replacement for worn or pitted rotors on GM V-6 marine engines equipped with module-in-cap distributor ignition systems. A worn rotor can cause misfires, hard starting, and rough idle, so replacing it along with the distributor cap during a routine tune-up helps keep ignition timing accurate across all cylinders. The Sierra 18-5408 is manufactured to meet or exceed the performance of the original equipment rotor it replaces and cross-references to common Mercruiser, OMC, Volvo Penta, GLM, and Mallory part numbers used on the same GM V-6 module-in-cap distributor platform.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e New GM Style \"Module in Cap\" Distributors, V-6 Applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion Distributor Cap:\u003c\/strong\u003e 18-5354\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e GLM 71110, Mallory 9-29221, Mercruiser 850485, 898253012, 850485-1, 8M0062084, 804424, OMC 3854311, Volvo Penta 3854311-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNew GM Style \"Module in Cap\" Distributors, V-6 Applications\u003c\/li\u003e\n\u003cli\u003eUse with 18-5354 distributor cap\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 71110\u003c\/li\u003e\n\u003cli\u003eMallory 9-29221\u003c\/li\u003e\n\u003cli\u003eMercruiser 850485\u003c\/li\u003e\n\u003cli\u003e898253012\u003c\/li\u003e\n\u003cli\u003e850485-1\u003c\/li\u003e\n\u003cli\u003e8M0062084\u003c\/li\u003e\n\u003cli\u003e804424\u003c\/li\u003e\n\u003cli\u003eOMC 3854311\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3854311-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5408 rotor fit?\u003c\/strong\u003e The Sierra 18-5408 is built for New GM Style \"Module in Cap\" distributors used in V-6 applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich distributor cap should I use with this rotor?\u003c\/strong\u003e Pair the Sierra 18-5408 rotor with the 18-5354 distributor cap for a correct module-in-cap V-6 ignition setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5408 the same as a Mercruiser 850485 rotor?\u003c\/strong\u003e Yes, the Sierra 18-5408 cross-references to Mercruiser part numbers 850485 and 850485-1, along with 898253012 and 8M0062084, for the same GM module-in-cap V-6 distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor cross-reference to OMC or Volvo Penta numbers?\u003c\/strong\u003e Yes, the Sierra 18-5408 replaces OMC 3854311 and Volvo Penta 3854311-2, in addition to GLM 71110 and Mallory 9-29221.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5408 rotor made from?\u003c\/strong\u003e It is made of alloy steel with a machined finish for accurate fit and reliable electrical contact inside the distributor cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5408 rotor weigh?\u003c\/strong\u003e The Sierra 18-5408 rotor weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rotors come in a package?\u003c\/strong\u003e Each package of the Sierra 18-5408 contains 1 rotor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5408 genuine OEM or aftermarket?\u003c\/strong\u003e The Sierra 18-5408 is a Sierra-brand aftermarket replacement part manufactured to meet or exceed the performance of the original equipment rotor it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor work with a V-8 module-in-cap distributor?\u003c\/strong\u003e No, the 18-5408 is designed for V-6 module-in-cap distributor applications; V-8 module-in-cap setups use a different rotor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the distributor rotor?\u003c\/strong\u003e A worn or pitted rotor like the 18-5408 should be replaced when experiencing misfires, hard starting, or rough idle, typically alongside the 18-5354 distributor cap during a tune-up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5408 rotor include the distributor cap?\u003c\/strong\u003e No, the Sierra 18-5408 is the rotor only; the matching 18-5354 distributor cap is a separate part.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988216131803,"sku":"SIE-18-5408","price":8.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5408_lg__98667.1558128459.500.750.jpg?v=1785188117"},{"product_id":"distributor-rotor-for-mercury-mercruiser-13524a6-gm-v-6-thunderbolt-iv-v-hei-ignition","title":"Sierra 18-5432 Rotor Assembly for MerCruiser 4.3L 262 cid V-6 Engines, Replaces Mercury Marine 13524A6","description":"\u003cp\u003eThe Sierra 18-5432 Rotor Assembly is a distributor rotor built for MerCruiser inboard\/outboard engines equipped with a contact-controlled distributor running standard rotation. It is designed for GM-based 262 cid V-6 MerCruiser powerheads across a range of model years and serial number ranges, including the 205, 4.3L (2bbl), 4.3L (2bbl) GEN+, 4.3L EFI (GEN+\/TBI), 4.3LH (GEN+, 4bbl), 4.3LX (4bbl), 4.3LX (GEN+, 2bbl), and the 4.3L\/LH\/LX\/LXH V6 Alpha (Gen+) and Bravo (Gen+) drive combinations. This rotor is intended for contact-controlled distributor ignition systems and is not designed for Thunderbolt ignition setups.\u003c\/p\u003e\u003cp\u003eThe rotor features a machined exterior finish and mounts inside the distributor cap, where it directs spark from the coil to the correct spark plug wire terminal as the distributor shaft rotates. It ships as a single rotor assembly (one unit per package) and is commonly replaced as part of a routine ignition tune-up alongside the distributor cap, contact set, coil, and spark plug wires. Sierra manufactures this part to meet or exceed the specification of the original equipment component it replaces, making it a straightforward direct-fit replacement for the applicable MerCruiser V-6 engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Rotor Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Contact-controlled, standard rotation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Compatibility:\u003c\/strong\u003e Not for Thunderbolt ignition systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e GM 262 cid V-6, MerCruiser I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319319\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 13524A6, 13524A4, 13524Q06, 19405A4, 90576A5; CDI E65-0004; GLM 71070; Mallory 9-29218\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModel 205, 262 cid V-6, 1985-1987, Serial# A331455 - B775129\u003c\/li\u003e\n\u003cli\u003eModel 4.3L (2bbl), 262 cid V-6, 1988-1996, Serial# B773243 - F802999\u003c\/li\u003e\n\u003cli\u003eModel 4.3L (2bbl) GEN+, 262 cid V-6, 1998-2010, Serial# L010044 \u0026amp; UP\u003c\/li\u003e\n\u003cli\u003eModel 4.3L EFI (GEN+, TBI), 262 cid V-6, 1999-2001, Serial# L360000 - M299999\u003c\/li\u003e\n\u003cli\u003eModel 4.3LH (GEN+, 4bbl), 262 cid V-6, 1998-2002, Serial# L010044 - M614999\u003c\/li\u003e\n\u003cli\u003eModel 4.3LX (4bbl), 262 cid V-6, 1988-1996, Serial# B775130 - F802999\u003c\/li\u003e\n\u003cli\u003eModel 4.3LX (GEN+, 2bbl), 262 cid V-6, 1996-1997, Serial# F803000 - K999999\u003c\/li\u003e\n\u003cli\u003eModel 4.3L\/LH\/LX\/LXH V6, Alpha (Gen+), 1996-2001, Serial# F803000 \u0026amp; UP\u003c\/li\u003e\n\u003cli\u003eModel 4.3L\/LH\/LX\/LXH V6, Bravo (Gen+), 1996-2001, Serial# F803000 \u0026amp; UP\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 13524A6\u003c\/li\u003e\n\u003cli\u003eMercury Marine 13524A4\u003c\/li\u003e\n\u003cli\u003eMercury Marine 13524Q06\u003c\/li\u003e\n\u003cli\u003eMercury Marine 19405A4\u003c\/li\u003e\n\u003cli\u003eMercury Marine 90576A5\u003c\/li\u003e\n\u003cli\u003eCDI E65-0004\u003c\/li\u003e\n\u003cli\u003eGLM 71070\u003c\/li\u003e\n\u003cli\u003eMallory 9-29218\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5432 rotor fit?\u003c\/strong\u003e The 18-5432 rotor fits MerCruiser inboard\/outboard engines with a 262 cid GM V-6 and a contact-controlled, standard-rotation distributor, covering models such as the 205, 4.3L (2bbl), 4.3L (2bbl) GEN+, 4.3L EFI (GEN+\/TBI), 4.3LH (GEN+, 4bbl), 4.3LX (4bbl and GEN+\/2bbl), and the 4.3L\/LH\/LX\/LXH V6 Alpha (Gen+) and Bravo (Gen+) combinations, within the serial number ranges specified for each model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this rotor work with a Thunderbolt ignition system?\u003c\/strong\u003e No. The 18-5432 rotor is built for contact-controlled distributors with standard rotation and is not intended for engines with Thunderbolt ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM equivalent of Sierra part 18-5432?\u003c\/strong\u003e Sierra 18-5432 is a direct cross-reference to Mercury Marine 13524A6, and it also interchanges with Mercury Marine 13524A4, 13524Q06, 19405A4, and 90576A5, as well as CDI E65-0004, GLM 71070, and Mallory 9-29218.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5432 rotor weigh?\u003c\/strong\u003e The Sierra 18-5432 Rotor Assembly weighs 0.17 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rotors come in the package?\u003c\/strong\u003e One rotor assembly is included per package of Sierra part 18-5432.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the rotor have?\u003c\/strong\u003e Sierra 18-5432 has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5432 rotor genuine Sierra or aftermarket?\u003c\/strong\u003e It is a genuine Sierra-manufactured part, built to meet or exceed the specification of the original equipment rotor it replaces rather than being a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the distributor rotor on my MerCruiser engine?\u003c\/strong\u003e The rotor is typically replaced during a routine ignition tune-up along with the distributor cap, contact set, coil, and spark plug wires, or when ignition misfire symptoms point to worn distributor components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5432 rotor fit both 2-barrel and 4-barrel 4.3L engines?\u003c\/strong\u003e Yes, within the applicable serial number ranges the 18-5432 rotor fits 4.3L (2bbl), 4.3LX (4bbl), 4.3LH (GEN+, 4bbl), and 4.3LX (GEN+, 2bbl) MerCruiser configurations, as well as 4.3L EFI (GEN+\/TBI) engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this rotor fit Alpha and Bravo drive MerCruiser engines?\u003c\/strong\u003e Yes, the 18-5432 rotor is listed for the 4.3L\/LH\/LX\/LXH V6 engine with both Alpha (Gen+) and Bravo (Gen+) drives, for serial numbers F803000 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for Sierra 18-5432?\u003c\/strong\u003e The UPC for the Sierra 18-5432 Rotor Assembly is 030999319319.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988216262875,"sku":"SIE-18-5432","price":12.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5432_lg__71076.1558129169.500.750.jpg?v=1785188318"},{"product_id":"sierra-18-5431-distributor-rotor-for-mercury-mercruiser-gm-v-8-thunderbolt-iv-v-hei-ignition-replaces-13524a5","title":"Sierra 18-5431 Rotor Assembly for MerCruiser GM V-8 Thunderbolt IV \u0026 V Ignition, Replaces 13524A5","description":"\u003cp\u003eThe Sierra 18-5431 Rotor Assembly is a direct-fit distributor rotor engineered for MerCruiser GM V-8 engines equipped with Thunderbolt IV and Thunderbolt V ignition systems. It is built to Sierra's MAGFORCE ignition standards, which are designed to be electronics friendly, protecting onboard electronic devices and engine controls from RFI and EMI interference while still delivering the voltage the ignition system needs to fire reliably. The rotor features moisture-proof, molded distributor insulators and a high-quality conductive center carrier reinforcement that maintains conductor integrity over years of service in the harsh marine environment.\u003c\/p\u003e\u003cp\u003eThis rotor is confirmed to fit several MerCruiser V-8 engine configurations, including the 500 Bulldog 540\/V-8, the 575 540\/V-8, and the 800 SC 572\/V-8, each identified by specific serial number ranges. It ships as a single-piece rotor assembly and is intended as a direct replacement for the original equipment rotor in these ignition systems, restoring correct spark distribution during a tune-up or ignition system service.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Rotor Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GM V-8 Engines With Thunderbolt IV \u0026amp; V Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 13524T1, 13524A5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999319302\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 500 Bulldog 540\/V-8, 1990-2001, serial numbers C577003 - M050281\u003c\/li\u003e\n\u003cli\u003eMerCruiser 575 540\/V-8, 1986-1992, serial numbers A677429 - D763716\u003c\/li\u003e\n\u003cli\u003eMerCruiser 800 SC 572\/V-8, 1993-1998, serial numbers D763836 and up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e13524T1\u003c\/li\u003e\n\u003cli\u003e13524A5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5431 rotor assembly fit?\u003c\/strong\u003e The 18-5431 is designed for GM V-8 engines equipped with Thunderbolt IV and Thunderbolt V ignition systems, and it is confirmed to fit the MerCruiser 500 Bulldog 540\/V-8 (1990-2001), the 575 540\/V-8 (1986-1992), and the 800 SC 572\/V-8 (1993-1998).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-5431 a direct OEM replacement?\u003c\/strong\u003e Yes, part number 18-5431 is designed as a direct replacement rotor and cross-references to OEM numbers 13524T1 and 13524A5.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the rotor assembly weigh?\u003c\/strong\u003e The Sierra 18-5431 rotor assembly weighs 0.17 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the OEM number 13524A5 correspond to?\u003c\/strong\u003e 13524A5 is one of the OEM cross-reference numbers for the Sierra 18-5431 rotor assembly, along with 13524T1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rotors come in the package?\u003c\/strong\u003e The 18-5431 ships as a single rotor assembly, with one item per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-5431 rotor have?\u003c\/strong\u003e The rotor has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5431 rotor protect onboard electronics from interference?\u003c\/strong\u003e Yes, Sierra's MAGFORCE ignition components, including the 18-5431 rotor, are engineered to be electronics friendly and shield RFI and EMI from onboard electronic devices and engine controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5431 rotor fit non-Thunderbolt ignition systems?\u003c\/strong\u003e No, the 18-5431 is specified for GM V-8 engines with Thunderbolt IV and Thunderbolt V ignition systems only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial number range applies to the MerCruiser 800 SC 572\/V-8 fitment?\u003c\/strong\u003e For the MerCruiser 800 SC 572\/V-8, the Sierra 18-5431 rotor fits engines with serial numbers D763836 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5431 rotor moisture resistant?\u003c\/strong\u003e Yes, the rotor uses moisture-proof, molded distributor insulators to help prevent moisture-related ignition failures in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial numbers apply to the 575 540\/V-8 fitment for part 18-5431?\u003c\/strong\u003e On the MerCruiser 575 540\/V-8, the 18-5431 rotor fits engines within serial numbers A677429 through D763716.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5431?\u003c\/strong\u003e Ordering the Sierra 18-5431 includes one rotor assembly; it is sold individually with no additional components.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988216688859,"sku":"SIE-18-5431","price":11.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5431_lg__32077.1558129108.500.750.jpg?v=1785188972"},{"product_id":"sierra-18-5484-1-electronic-distributor-for-gm-v8-marine-engines-262-454-502-delco-est-direct-replacement","title":"Sierra 18-5484-1 Electronic Distributor (Late HEI), Replaces 3857449, Conventional Rotation V8 262-454 \u0026 502","description":"\u003cp\u003eThe Sierra 18-5484-1 Electronic Distributor is a Late HEI style ignition distributor engineered as a plug-in replacement for GM-style EST ignition system distributors used in marine V8 engine applications. It is built for conventional rotation V8\/LH 262-454 \u0026amp; 502 engines, except 348\/409 and tall block engines. At the core of the distributor is the Ignitor II ignition module with adaptive dwell control, which adjusts spark timing across the entire RPM range to help maximize engine performance and maintain consistent, reliable ignition output.\u003c\/p\u003e\u003cp\u003eInternally, the distributor uses an upper roller bearing paired with an oil impregnated bronze sintered bottom bushing, aligned and bored for accuracy to deliver maximum durability under marine operating conditions. A machined, heat treated gear is manufactured to tight tolerances to ensure long-term durability and consistent timing. The steel gear is compatible with both flat tappet and hydraulic roller cams, giving it broad application across GM-based marine V8 setups. The housing is of aluminum construction, and the distributor combines a ball bearing and bushing setup for maximum timing stability and long service life.\u003c\/p\u003e\u003cp\u003eThe unit features a reliable, high signal strength trigger system and is built to meet or exceed SAE J1171 standards, the marine ignition protection standard. A companion Sierra 18-5281 tune-up kit is available for maintenance of this distributor. As with other Sierra ignition components, this distributor is engineered to meet the demands of high horsepower marine engines while standing up to the harsh marine environment, and it meets or exceeds the performance of the original equipment part it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5484-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Electronic Distributor (Late HEI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Conventional Rotation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e V8\/LH 262-454 \u0026amp; 502 (Except 348\/409 and Tall Block Engines)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Module:\u003c\/strong\u003e Ignitor II with adaptive dwell control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Upper roller bearing and oil impregnated bronze sintered bottom bushing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Material:\u003c\/strong\u003e Machined, heat treated gear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Compatibility:\u003c\/strong\u003e Flat tappet or hydraulic roller cams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Compliance:\u003c\/strong\u003e Meets or exceeds SAE J1171\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Tune-Up Kit:\u003c\/strong\u003e Sierra 18-5281\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.99 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eConventional Rotation V8\/LH 262-454 \u0026amp; 502 (Except 348\/409 and Tall Block Engines)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3857449\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5484-1 distributor fit?\u003c\/strong\u003e The Sierra 18-5484-1 Electronic Distributor is designed for conventional rotation V8\/LH 262-454 \u0026amp; 502 engines, except 348\/409 and tall block engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5484-1 replace an OEM distributor?\u003c\/strong\u003e Yes, the 18-5484-1 replaces OEM number 3857449 and is designed as a plug-in replacement for the GM-style EST ignition system distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition module is used in this distributor?\u003c\/strong\u003e The Sierra 18-5484-1 uses the Ignitor II ignition module with adaptive dwell control, which adjusts spark timing across the entire RPM range to maximize performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the housing material on the 18-5484-1 distributor?\u003c\/strong\u003e The housing is constructed of aluminum, paired with a ball bearing and bushing combination for maximum timing stability and long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the gear on the 18-5484-1 compatible with roller cams?\u003c\/strong\u003e The steel gear on the Sierra 18-5484-1 distributor is compatible with either flat tappet or hydraulic roller cams.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5484-1 distributor weigh?\u003c\/strong\u003e The Sierra 18-5484-1 Electronic Distributor weighs 2.99 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat bearing setup does this distributor use for durability?\u003c\/strong\u003e An upper roller bearing and an oil impregnated bronze sintered bottom bushing are installed and aligned bored for accuracy, providing maximum durability in the 18-5484-1 distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5484-1 distributor meet marine ignition standards?\u003c\/strong\u003e Yes, the Sierra 18-5484-1 distributor meets or exceeds SAE J1171 standards for marine ignition protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a tune-up kit available for the 18-5484-1 distributor?\u003c\/strong\u003e Sierra offers tune-up kit 18-5281 as a companion part for servicing the 18-5484-1 Electronic Distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-5484-1 compare to the original equipment distributor it replaces?\u003c\/strong\u003e The Sierra 18-5484-1 is engineered to meet or exceed the performance of the original equipment distributor it replaces, in this case OEM number 3857449.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of trigger system does the 18-5484-1 use?\u003c\/strong\u003e The Sierra 18-5484-1 distributor features a reliable, high signal strength trigger system as part of its Late HEI design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5484-1 distributor?\u003c\/strong\u003e The Sierra 18-5484-1 Electronic Distributor measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988218163419,"sku":"SIE-18-5484-1","price":617.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5484-1__86956.1753385267.500.750.jpg?v=1785188801"},{"product_id":"trigger-assembly-for-mercury-3-cylinder-outboards-replaces-oem-96455a8-68162a6-sierra-18-5797-1","title":"Sierra Trigger Assembly 18-5797-1 for Mercury 50-70 HP 3 Cylinder Outboards","description":"\u003cp\u003eThe Sierra Trigger Assembly, part number 18-5797-1, is an ignition trigger component engineered for Mercury outboard motors within the 50 to 70 HP range on 3 cylinder powerheads. The trigger assembly works within the ignition system to signal spark timing to the engine's electronic ignition components, and a worn or failing trigger can cause hard starting, misfiring, or a no-spark condition. This assembly is built to match the fit and function of the original Mercury trigger unit on the applicable engine serial number ranges, allowing for a direct in-place replacement without modification.\u003c\/p\u003e\u003cp\u003eThis part is cataloged under Mercury Outboard Stators \u0026amp; Triggers, the category Sierra uses for ignition trigger and stator replacement components. It is intended for technicians and boat owners replacing a failed or deteriorated trigger assembly as part of an ignition system repair or a preventive maintenance overhaul on the covered Mercury 3 cylinder outboards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5797-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Trigger Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Stators \u0026amp; Triggers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282392505\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Mercury 50 HP, 60 HP, and 70 HP, 3 cylinder outboards, within the applicable engine serial number ranges\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 50 HP, 3 cylinder, serial numbers 6428681 to D000749\u003c\/li\u003e\n\u003cli\u003eMercury 60 HP, 3 cylinder, serial numbers 6428681 to D000749\u003c\/li\u003e\n\u003cli\u003eMercury 70 HP, 3 cylinder, serial numbers 4571652 to A996141\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5797-1 trigger assembly used for?\u003c\/strong\u003e It is an ignition trigger assembly for Mercury outboard motors, used to signal spark timing to the engine's ignition system on applicable 3 cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Mercury outboards does the 18-5797-1 trigger assembly fit?\u003c\/strong\u003e It fits Mercury 50 HP and 60 HP 3 cylinder outboards with engine serial numbers 6428681 to D000749, and Mercury 70 HP 3 cylinder outboards with engine serial numbers 4571652 to A996141.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5797-1 trigger assembly weigh?\u003c\/strong\u003e The Sierra trigger assembly, part number 18-5797-1, weighs 0.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5797-1 a direct replacement for the original Mercury trigger?\u003c\/strong\u003e Yes, the Sierra 18-5797-1 is built to match the fit and function of the original trigger assembly on the covered Mercury 3 cylinder outboards for direct installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a failing trigger assembly on a Mercury outboard?\u003c\/strong\u003e Hard starting, engine misfiring, or a complete loss of spark can indicate a worn or failing trigger assembly like the 18-5797-1 needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5797-1 trigger assembly work on Mercury 80 HP outboards?\u003c\/strong\u003e No, based on the applicable fitment data the 18-5797-1 trigger assembly covers Mercury 50, 60, and 70 HP 3 cylinder outboards, not the 80 HP models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my Mercury outboard's engine serial number matches the 18-5797-1 fitment?\u003c\/strong\u003e Check your Mercury outboard's engine serial number against the ranges listed for this part: 6428681 to D000749 for 50 and 60 HP 3 cylinder models, or 4571652 to A996141 for 70 HP 3 cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of part is the Sierra 18-5797-1?\u003c\/strong\u003e The 18-5797-1 is cataloged as a Mercury Outboard Stator \u0026amp; Trigger component, specifically a trigger assembly for the ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-5797-1 trigger assembly be installed by a boat owner or does it require a mechanic?\u003c\/strong\u003e The 18-5797-1 is a bolt-in ignition component; installation typically involves accessing the powerhead's ignition system, which many experienced boat owners and marine technicians can perform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5797-1 an OEM Mercury part or an aftermarket replacement?\u003c\/strong\u003e The 18-5797-1 is a Sierra-branded aftermarket trigger assembly manufactured to fit the applicable Mercury 3 cylinder outboard engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988321972443,"sku":"SIE-18-5797-1","price":190.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5797_lg__10215.1558129689.500.750.jpg?v=1785329187"},{"product_id":"sierra-18-99309-ignition-condenser-for-mercury-mariner-outboards","title":"Sierra Condenser 18-99309 for Mercury Mariner Outboard Engine Ignition Tune-Ups","description":"\u003cp\u003eThe Sierra Condenser, part number 18-99309, is an ignition system component used in tune-up service for Mercury Mariner outboard engines. The condenser is a key part of the points-type ignition system, working alongside the ignition points to help manage voltage in the primary ignition circuit during spark generation. It is commonly replaced as part of a routine outboard tune-up along with other ignition wear items.\u003c\/p\u003e\u003cp\u003eThis Sierra part is identified by UPC 808282395179 and is a lightweight component at 0.1 pounds, consistent with a small electrical ignition part. It is sold as an individual replacement part for outboard owners and marine technicians performing ignition system maintenance on Mercury Mariner outboard engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99309\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282395179\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury Mariner outboard engine ignition tune-up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Ignition Condenser\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99309 condenser used for?\u003c\/strong\u003e The Sierra 18-99309 is an ignition condenser used in the ignition system tune-up of Mercury Mariner outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-99309 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-99309 is the manufacturer part number for this Sierra condenser.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-99309 condenser weigh?\u003c\/strong\u003e It weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99309 condenser fit?\u003c\/strong\u003e The Sierra 18-99309 condenser is intended for use on Mercury Mariner outboard engines as part of ignition tune-up service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-99309 condenser?\u003c\/strong\u003e The UPC for this Sierra condenser is 808282395179.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the condenser part of a larger tune-up kit?\u003c\/strong\u003e The Sierra 18-99309 condenser is categorized as a Mercury outboard tune-up part and can be used alongside other ignition tune-up components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a condenser do in an outboard ignition system?\u003c\/strong\u003e In a points-type ignition system, the condenser works with the ignition points to help manage voltage in the primary ignition circuit during spark generation, which is why it is replaced as part of Mercury Mariner outboard tune-up service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I order just one Sierra 18-99309 condenser?\u003c\/strong\u003e Yes, the Sierra 18-99309 condenser is sold as an individual replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99309 condenser lightweight?\u003c\/strong\u003e At 0.1 pounds, the Sierra 18-99309 condenser is a small, lightweight ignition component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand makes part number 18-99309?\u003c\/strong\u003e Part number 18-99309 is manufactured by Sierra.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988441313499,"sku":"SIE-18-99309","price":59.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-994-4463_lg__11590.1558112146.500.750.jpg?v=1785329154"},{"product_id":"distributor-rotor-and-shaft-assembly-for-mercury-4-and-6-cylinder-outboards-sierra-18-99308-cdi-994-4371-interchange","title":"Sierra Rotor\/Shaft Assembly 18-99308 for 4\/6 Cylinder Outboard Engines","description":"\u003cp\u003eThe Sierra Rotor\/Shaft Assembly, part number 18-99308, is a replacement ignition rotor and shaft assembly built for 4 and 6 cylinder outboard engines. This component is a core part of the engine's ignition system, working with the distributor to route spark to the correct cylinder in firing order. As the engine's original rotor and shaft wear from heat cycling and continuous rotation, ignition timing accuracy and spark delivery can degrade, leading to misfires, hard starting, or rough idle. Replacing the rotor\/shaft assembly restores proper spark distribution and helps the ignition system perform as designed.\u003c\/p\u003e\u003cp\u003eThis assembly is compatible with ignition systems from CDI Electronics, giving boat owners and marine technicians a straightforward option when servicing 4 or 6 cylinder outboard ignition components. It is sized and configured specifically for 4\/6 cylinder applications, so it should be matched to the correct cylinder count before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99308\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Rotor\/Shaft Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Configuration:\u003c\/strong\u003e 4\/6 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Ignition System:\u003c\/strong\u003e CDI Electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 736983857217\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits 4 and 6 cylinder outboard engines.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99308 rotor\/shaft assembly fit?\u003c\/strong\u003e The Sierra 18-99308 is built for 4 and 6 cylinder outboard engines that use a distributor-based ignition system with a rotor and shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system is the 18-99308 rotor\/shaft assembly compatible with?\u003c\/strong\u003e This rotor\/shaft assembly is compatible with CDI Electronics ignition systems used on 4\/6 cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does part number 18-99308 weigh?\u003c\/strong\u003e The Sierra 18-99308 rotor\/shaft assembly weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the rotor\/shaft assembly do in the ignition system?\u003c\/strong\u003e It rotates within the distributor to direct spark from the ignition coil to each spark plug in the correct firing order, so accurate rotor and shaft function is essential for proper engine timing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the signs that a rotor\/shaft assembly needs to be replaced?\u003c\/strong\u003e Misfires, hard starting, rough idle, or inconsistent spark delivery can indicate a worn rotor and shaft, which is when a replacement like the Sierra 18-99308 is typically needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99308 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Part number 18-99308 is a Sierra branded rotor\/shaft assembly, sold under the Sierra part number as listed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99308 rotor\/shaft assembly include the shaft as one piece with the rotor?\u003c\/strong\u003e Yes, the Sierra 18-99308 is a combined rotor\/shaft assembly, meaning the rotor and shaft are supplied together as a single unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this rotor\/shaft assembly be used on both 4 cylinder and 6 cylinder outboards?\u003c\/strong\u003e Yes, the Sierra 18-99308 is designed for use on 4 and 6 cylinder outboard engine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of outboard parts does the 18-99308 belong to?\u003c\/strong\u003e The Sierra 18-99308 rotor\/shaft assembly falls under Mercury outboard parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-99308 rotor\/shaft assembly?\u003c\/strong\u003e The UPC for the Sierra 18-99308 rotor\/shaft assembly is 736983857217.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988441444571,"sku":"SIE-18-99308","price":312.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-994-4371_lg__61960.1558115320.500.750.jpg?v=1785188257"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/EMP-300-00530-MerCruiser-Volvo-Rotor__75783.1722510930.500.750.jpg?v=1785359947","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems-ignition-starting-distributor-components.oembed?page=2","provider":"Good Vibes Marina","version":"1.0","type":"link"}