{"title":"Points, Condensers \u0026 Contact Sets","description":null,"products":[{"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":"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-18-5305-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":"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":"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":"johnson-evinrude-timer-base-3-cyl-replaces-584804-fits-50-60-65-70-hp-loop-charged-outboards-1993-2001-sierra-18-99395","title":"Sierra 18-99395 Johnson\/Evinrude 3-Cylinder Timer Base, Replaces 584804\/584805\/763773, Fits 1993-2001 50-70 HP Engines","description":"\u003cp\u003eThe Sierra 18-99395 is a replacement timer base built for 3-cylinder Johnson\/Evinrude loop charged outboard engines equipped with Quick Start and S.L.O.W. Ignition systems. The timer base is a core ignition component that controls spark timing across the powerhead, and a worn or cracked unit is a common cause of hard starting, misfires, and inconsistent idle on these engines. This timer base is molded from durable plastic to withstand the heat and vibration of the engine compartment while housing the internal ignition timing components. It is designed as a direct fit for 1993-2001 50, 60, 65, and 70 HP 3-cylinder Johnson\/Evinrude loop charged engines with Quick Start and S.L.O.W. It cross-references to the OEM part numbers 584804, 584805, and 763773, so it installs in place of the original timer base without modification. At 0.8 pounds, it ships as a single ready-to-install unit. Whether you are restoring ignition performance on an aging outboard or replacing a failed timer base as part of a broader tune-up, the 18-99395 gives you an OEM-equivalent part sized and specified for this engine family.\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 18-99395\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Timer Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Horsepower:\u003c\/strong\u003e 50, 60, 65, 70 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Years:\u003c\/strong\u003e 1993-2001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System:\u003c\/strong\u003e Quick Start and S.L.O.W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394288\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 584804, 584805, 763773\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 3 cylinder loop charged engines with Quick Start and S.L.O.W.: 50, 60, 65 and 70 HP (1993-2001)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e584804\u003c\/li\u003e\n\u003cli\u003e584805\u003c\/li\u003e\n\u003cli\u003e763773\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99395 timer base fit?\u003c\/strong\u003e The Sierra 18-99395 fits 3 cylinder loop charged Johnson\/Evinrude engines with Quick Start and S.L.O.W. Ignition systems, specifically the 1993-2001 50, 60, 65, and 70 HP models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this timer base replace?\u003c\/strong\u003e It replaces OEM part numbers 584804, 584805, and 763773, so it can be installed directly in place of any of those original Johnson\/Evinrude timer bases.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99395 an original or aftermarket timer base?\u003c\/strong\u003e The Sierra 18-99395 is an aftermarket replacement timer base manufactured to match the fit and function of the original 584804, 584805, and 763773 timer bases.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the timer base weigh?\u003c\/strong\u003e The Sierra 18-99395 timer base weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the timer base made of?\u003c\/strong\u003e It is made of plastic, chosen to withstand the heat and vibration inside the outboard's ignition compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this timer base work with Quick Start and S.L.O.W. Ignition systems?\u003c\/strong\u003e Yes, the 18-99395 is specifically designed for 3 cylinder loop charged Johnson\/Evinrude engines equipped with Quick Start and S.L.O.W. Ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a timer base needs replacement?\u003c\/strong\u003e Hard starting, misfires, and an inconsistent idle on a 3 cylinder Johnson\/Evinrude engine are common signs that the timer base, such as the 18-99395, has failed or cracked.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-99395 fit a 4 cylinder or V6 Johnson\/Evinrude engine?\u003c\/strong\u003e No, the Sierra 18-99395 is built specifically for 3 cylinder loop charged 1993-2001 50, 60, 65, and 70 HP Johnson\/Evinrude engines, not 4 cylinder or V6 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when you order the 18-99395?\u003c\/strong\u003e The order includes one Sierra 18-99395 timer base, ready to install in place of the original 584804, 584805, or 763773 unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use OEM part number 584805 to cross-reference the correct timer base?\u003c\/strong\u003e Yes, part number 584805 is one of the OEM numbers that the Sierra 18-99395 replaces, along with 584804 and 763773.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988442558683,"sku":"SIE-18-99395","price":236.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-4804_lg__71234.1722381628.500.750.jpg?v=1785188200"},{"product_id":"sierra-18-99406-timer-base-for-johnson-evinrude-3-cyl-60-75-hp-outboards-replaces-583378-584562","title":"Sierra 18-99406 Timer Base, Replaces 763777, for Johnson\/Evinrude 3 Cylinder 60-75 HP 1979-2001","description":"\u003cp\u003eThe Sierra 18-99406 Timer Base is a direct-fit ignition component for Johnson and Evinrude 3 cylinder outboard engines, built to restore correct spark timing on units that have developed rough idle, misfiring, or hard-starting symptoms tied to a worn or failed timer base assembly. It mounts in place of the factory timer base and interfaces with the engine's ignition trigger system to maintain accurate timing across the RPM range.\u003c\/p\u003e\u003cp\u003eThis timer base is designed for 3 cylinder Johnson and Evinrude outboards rated at 60, 65, 70, and 75 horsepower covering the 1979-2001 production span, and it cross-references to a range of factory part numbers so it can replace an original timer base that has cracked, worn at the follower pin, or lost consistent contact with the timing components. Installers should confirm the horsepower and cylinder count of their specific engine before ordering, since timer bases are not interchangeable across different cylinder configurations.\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 18-99406\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394370\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 8 x 5 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 3 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Horsepower:\u003c\/strong\u003e 60, 65, 70, 75 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Years:\u003c\/strong\u003e 1979-2001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 3 cylinder outboards: 60, 65, 70, and 75 HP, 1979-2001\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763777\u003c\/li\u003e\n\u003cli\u003e584562\u003c\/li\u003e\n\u003cli\u003e584269\u003c\/li\u003e\n\u003cli\u003e583378\u003c\/li\u003e\n\u003cli\u003e583131\u003c\/li\u003e\n\u003cli\u003e581949\u003c\/li\u003e\n\u003cli\u003e583060\u003c\/li\u003e\n\u003cli\u003e582724\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99406 timer base fit?\u003c\/strong\u003e The Sierra 18-99406 fits Johnson and Evinrude 3 cylinder outboards rated at 60, 65, 70, and 75 HP built from 1979-2001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99406 a direct OEM replacement?\u003c\/strong\u003e Yes, part number 18-99406 is designed as a direct replacement for the original factory timer base on the applicable Johnson\/Evinrude 3 cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does 18-99406 replace?\u003c\/strong\u003e It replaces OEM numbers 763777, 584562, 584269, 583378, 583131, 581949, 583060, and 582724.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this timer base work on a 2 cylinder or 4 cylinder Evinrude?\u003c\/strong\u003e No, the 18-99406 timer base is built for 3 cylinder Johnson\/Evinrude engines only; it is not interchangeable with 2 or 4 cylinder timer base assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99406 timer base weigh?\u003c\/strong\u003e The Sierra 18-99406 timer base weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-99406 timer base?\u003c\/strong\u003e The unit measures 8 x 5 x 3 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a failed timer base on these outboards?\u003c\/strong\u003e Rough idle, misfiring, or hard starting on a 1979-2001 3 cylinder Johnson\/Evinrude 60-75 HP outboard can point to a worn timer base like the 18-99406 replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99406 include mounting hardware?\u003c\/strong\u003e The listing covers the timer base assembly itself, part number 18-99406; check your engine's original hardware for reuse during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-99406 on a 65 HP Johnson from the covered years?\u003c\/strong\u003e Yes, the 18-99406 is designed to fit 60, 65, 70, and 75 HP 3 cylinder Johnson\/Evinrude engines within the 1979-2001 range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs professional installation required for the 18-99406 timer base?\u003c\/strong\u003e Installation involves ignition timing components, so buyers unfamiliar with outboard ignition systems on 3 cylinder Johnson\/Evinrude engines should have the 18-99406 installed by a qualified marine technician.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988442722523,"sku":"SIE-18-99406","price":264.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-3378_lg__00201.1748364321.500.750.jpg?v=1785188224"},{"product_id":"johnson-evinrude-timer-base-for-150-155-175-hp-6-cyl-cross-flow-1989-1992-replaces-oem-583853-sierra-18-99410","title":"Sierra 18-99410 Johnson Evinrude Timer Base, 6 Cylinder, Replaces 763774 584363 583853, Fits 1989-1992 150-175 HP","description":"\u003cp\u003eThe Sierra 18-99410 is a replacement timer base for 6 cylinder Johnson\/Evinrude Cross Flow outboard engines equipped with Quick Start and S.L.O.W. Ignition systems. The timer base is a core ignition component that controls spark timing as the engine rotates, and a worn or failing unit can cause hard starting, misfires, or inconsistent timing across cylinders. Installing the Sierra 18-99410 restores the original timing signal path so the ignition system fires each cylinder at the correct point in the engine cycle.\u003c\/p\u003e\u003cp\u003eThis timer base fits 1989-1992 6 cylinder Cross Flow engines rated 150, 155, and 175 HP. It directly replaces OEM numbers 763774, 584363, and 583853, so it installs in place of the original part without modification. The unit weighs 0.9 pounds.\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 18-99410\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394417\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Cross Flow with Quick Start and S.L.O.W.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 1989-1992, 6 cylinder Cross Flow engines with Quick Start and S.L.O.W., 150, 155, and 175 HP\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763774\u003c\/li\u003e\n\u003cli\u003e584363\u003c\/li\u003e\n\u003cli\u003e583853\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99410 timer base fit?\u003c\/strong\u003e The Sierra 18-99410 timer base fits 1989-1992 6 cylinder Johnson\/Evinrude Cross Flow engines equipped with Quick Start and S.L.O.W., rated 150, 155, and 175 HP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this timer base replace?\u003c\/strong\u003e This timer base replaces OEM numbers 763774, 584363, and 583853.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-99410 weigh?\u003c\/strong\u003e The Sierra 18-99410 timer base weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99410 a direct replacement for the original timer base?\u003c\/strong\u003e Yes, the Sierra 18-99410 is designed as a direct replacement, installing in place of the original 763774, 584363, or 583853 timer base without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this timer base work with a 4 cylinder outboard?\u003c\/strong\u003e No, the Sierra 18-99410 is built for 6 cylinder Johnson\/Evinrude Cross Flow engines, not 4 cylinder applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system must my engine have for this timer base to fit?\u003c\/strong\u003e Your engine needs the Quick Start and S.L.O.W. Ignition system found on the covered 6 cylinder Cross Flow Johnson\/Evinrude engines to use the Sierra 18-99410.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate my timer base needs replacement?\u003c\/strong\u003e Hard starting, misfires, or inconsistent spark timing on a 6 cylinder Johnson\/Evinrude Cross Flow engine are common signs that the timer base, such as the Sierra 18-99410, needs replacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower ratings does the 18-99410 cover?\u003c\/strong\u003e The Sierra 18-99410 is built for 150, 155, and 175 HP versions of the 1989-1992 6 cylinder Cross Flow engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the UPC for this part 808282394417?\u003c\/strong\u003e Yes, the Sierra 18-99410 timer base carries UPC 808282394417.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I cross-reference this part using my old timer base number?\u003c\/strong\u003e Yes, if your old timer base is stamped 763774, 584363, or 583853, the Sierra 18-99410 is the correct replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988443345115,"sku":"SIE-18-99410","price":436.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-3853_lg__40142.1722515559.500.750.jpg?v=1785188060"},{"product_id":"johnson-evinrude-timer-base-6-cyl-ignition-replaces-oem-583376-sierra-18-99423-fits-1979-1988-cross-flow-150-235-hp","title":"Sierra Timer Base 18-99423 for Johnson Evinrude 6 Cylinder Cross Flow Engines 1979-1988","description":"\u003cp\u003eThe Sierra 18-99423 Timer Base is an ignition component designed for Johnson\/Evinrude 6 cylinder Cross Flow outboard engines equipped with twin power packs. The timer base works with the ignition system to regulate spark timing across the engine's cylinders, and is a common wear-and-replace item when an outboard develops rough running, misfires, or inconsistent timing at various RPM ranges. Replacing a worn or failing timer base restores accurate ignition timing and helps the engine return to smooth, reliable operation.\u003c\/p\u003e\u003cp\u003eThis timer base is built to fit the Johnson\/Evinrude 6 cylinder Cross Flow engine family covering the 1979-1988 model years, across the 150, 155, 175, 185, 200, and 235 HP outboard variants that use twin power packs. It is intended as a direct fit for these applications and is cross-referenced to several factory OEM part numbers, making it easy to identify as the correct replacement when servicing these 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 18-99423\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Timer Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Family:\u003c\/strong\u003e Johnson\/Evinrude 6 Cylinder Cross Flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Horsepower:\u003c\/strong\u003e 150, 155, 175, 185, 200, 235 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model Years:\u003c\/strong\u003e 1979-1988\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Pack Configuration:\u003c\/strong\u003e Twin power pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 7 x 5 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394547\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 6 cylinder Cross Flow engines with twin power packs: 150, 155, 175, 185, 200, and 235 HP, 1979-1988\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763783\u003c\/li\u003e\n\u003cli\u003e583376\u003c\/li\u003e\n\u003cli\u003e582041\u003c\/li\u003e\n\u003cli\u003e581812\u003c\/li\u003e\n\u003cli\u003e583127\u003c\/li\u003e\n\u003cli\u003e583128\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99423 timer base fit?\u003c\/strong\u003e It fits Johnson\/Evinrude 6 cylinder Cross Flow outboard engines with twin power packs, covering the 150, 155, 175, 185, 200, and 235 HP models from 1979-1988.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes part 18-99423 work with single power pack ignition systems?\u003c\/strong\u003e No, the Sierra 18-99423 timer base is designed for the twin power pack configuration used on 1979-1988 Johnson\/Evinrude 6 cylinder Cross Flow engines, not single power pack setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does 18-99423 replace?\u003c\/strong\u003e This timer base cross-references to OEM numbers 763783, 583376, 582041, 581812, 583127, and 583128.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the timer base weigh?\u003c\/strong\u003e The Sierra 18-99423 timer base weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this timer base?\u003c\/strong\u003e It measures 7 x 5 x 3 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a timer base needs to be replaced?\u003c\/strong\u003e Rough running, misfires, or inconsistent ignition timing across RPM ranges on a Johnson\/Evinrude 6 cylinder Cross Flow engine are common signs that the timer base, such as Sierra 18-99423, needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99423 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-99423 is a Sierra-brand ignition timer base, sold under Sierra's own part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this timer base fit engines outside the 1979-1988 range?\u003c\/strong\u003e The Sierra 18-99423 is specified for the 1979-1988 Johnson\/Evinrude 6 cylinder Cross Flow engine range with twin power packs; fitment outside those years is not confirmed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the timer base come with mounting hardware?\u003c\/strong\u003e The listing covers the Sierra 18-99423 timer base component itself; no additional included hardware is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the UPC to verify I'm ordering the correct timer base?\u003c\/strong\u003e Yes, the Sierra 18-99423 timer base carries UPC 808282394547, which can be used to confirm the correct product when ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower ratings use this timer base?\u003c\/strong\u003e The 150, 155, 175, 185, 200, and 235 HP Johnson\/Evinrude 6 cylinder Cross Flow engines with twin power packs use the 18-99423 timer base.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988443410651,"sku":"SIE-18-99423","price":346.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-3377__53310.1737852737.500.750.jpg?v=1785188640"},{"product_id":"marine-timer-base-for-johnson-evinrude-85-155-hp-4-cylinder-outboards-1973-1977-replaces-oem-581900-sierra-18-99426","title":"Sierra 18-99426 Johnson Evinrude 4 Cylinder Timer Base, Fits 1973-1977 85-140 HP, Replaces 581900","description":"\u003cp\u003eThe Sierra 18-99426 is a timer base built for Johnson\/Evinrude 4 cylinder outboard engines, a core ignition-system component that works with screw terminal power packs to control ignition timing. This timer base is a direct-fit replacement for the original equipment part, restoring correct ignition timing function on applicable Johnson\/Evinrude outboards. It fits 1973-1977 4 cylinder engines rated at 85, 155, 135, and 140 HP that use screw terminal power packs.\u003c\/p\u003e\u003cp\u003eAs an ignition-system replacement part, the timer base is intended for outboard owners and marine technicians replacing a worn, damaged, or failing original timer base. Installing the correct timer base is important to maintaining proper ignition timing and engine performance on these Johnson\/Evinrude 4 cylinder 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 18-99426\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Timer Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394578\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Johnson\/Evinrude 4 cylinder outboards, 85, 155, 135 and 140 HP, with screw terminal power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Years:\u003c\/strong\u003e 1973-1977\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 581900, 581300, 763778, 385433\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 4 cylinder outboards, 1973-1977, 85, 155, 135 and 140 HP, with screw terminal power packs\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e581900\u003c\/li\u003e\n\u003cli\u003e581300\u003c\/li\u003e\n\u003cli\u003e763778\u003c\/li\u003e\n\u003cli\u003e385433\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-99426 timer base fit?\u003c\/strong\u003e The Sierra 18-99426 fits Johnson\/Evinrude 4 cylinder outboard engines from 1973-1977, specifically 85, 155, 135, and 140 HP models that use screw terminal power packs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99426 compatible with 6 cylinder Johnson\/Evinrude engines?\u003c\/strong\u003e No. The Sierra 18-99426 timer base is designed specifically for 4 cylinder Johnson\/Evinrude outboard engines, not 6 cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this timer base replace?\u003c\/strong\u003e Sierra 18-99426 replaces OEM numbers 581900, 581300, 763778, and 385433 on applicable Johnson\/Evinrude 4 cylinder outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the timer base weigh?\u003c\/strong\u003e The Sierra 18-99426 timer base weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this timer base work with all Johnson\/Evinrude power pack types?\u003c\/strong\u003e The 18-99426 is built for use with screw terminal power packs on 1973-1977 4 cylinder Johnson\/Evinrude engines; it is not specified for other power pack terminal types.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower engines use the 18-99426 timer base?\u003c\/strong\u003e This timer base fits 85, 155, 135, and 140 HP Johnson\/Evinrude 4 cylinder outboards from 1973-1977.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99426 a direct OEM replacement?\u003c\/strong\u003e Yes, the 18-99426 is a direct replacement for the original timer base on the listed Johnson\/Evinrude 4 cylinder engines, matching OEM numbers 581900, 581300, 763778, and 385433.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system does this timer base belong to?\u003c\/strong\u003e The Sierra 18-99426 is part of the Evinrude outboard ignition system, functioning as the timer base component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my Johnson\/Evinrude engine needs this timer base?\u003c\/strong\u003e If your Johnson\/Evinrude 4 cylinder outboard is a 1973-1977 model rated at 85, 155, 135, or 140 HP with a screw terminal power pack, the Sierra 18-99426 is the correct timer base part number to check against your engine's original part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand manufactures part number 18-99426?\u003c\/strong\u003e Part number 18-99426 is manufactured by Sierra.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988443771099,"sku":"SIE-18-99426","price":372.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-1900_lg__05301.1722505666.500.750.jpg?v=1785188098"},{"product_id":"sierra-18-99417-ignition-timer-base-for-johnson-evinrude-4-cyl-cross-flow-outboards-1978-1987-85-140-hp-replaces-oem-583376","title":"Sierra Timer Base 18-99417 for Johnson\/Evinrude 4 Cyl Cross Flow Engines, Replaces 763783","description":"\u003cp\u003eThe Sierra 18-99417 is a timer base for Johnson\/Evinrude 4 cylinder Cross Flow outboard engines equipped with twin power pack ignition systems. The timer base is the component that generates the timing signal the power packs use to fire the ignition at the correct point in the engine cycle, so a worn or failed unit typically shows up as rough running, misfires, hard starting, or a no-spark condition on one or more cylinders. This unit is built to take the place of the original Johnson\/Evinrude timer base and is cross-referenced to the OEM part numbers used across this engine family, giving owners a sourcing option when the original factory part is hard to find.\u003c\/p\u003e\u003cp\u003eIt is designed specifically for 4 cylinder Cross Flow powerheads covering the 85, 88, 90, 100, 110, 115, and 140 HP range that use twin power packs, so it should be matched against the engine's HP and ignition configuration before ordering. The unit weighs 0.9 pounds and ships as a single timer base assembly.\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 18-99417\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Evinrude Outboard Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 8 x 5 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394486\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Twin power pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 4 cylinder Cross Flow engines with twin power packs\u003c\/li\u003e\n\u003cli\u003e85, 88, 90, 100, 110, 115, and 140 HP\u003c\/li\u003e\n\u003cli\u003e1978-1987\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763783\u003c\/li\u003e\n\u003cli\u003e583376\u003c\/li\u003e\n\u003cli\u003e582041\u003c\/li\u003e\n\u003cli\u003e581812\u003c\/li\u003e\n\u003cli\u003e583127\u003c\/li\u003e\n\u003cli\u003e583128\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99417 timer base used for?\u003c\/strong\u003e It supplies the timing signal for the ignition system on Johnson\/Evinrude 4 cylinder Cross Flow outboards that use twin power packs, so it directly affects when each cylinder fires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the 18-99417 timer base fit?\u003c\/strong\u003e It is built for Johnson\/Evinrude 4 cylinder Cross Flow engines with twin power packs in the 85, 88, 90, 100, 110, 115, and 140 HP range, model years 1978-1987.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this timer base replace?\u003c\/strong\u003e The Sierra 18-99417 cross-references to Johnson\/Evinrude OEM numbers 763783, 583376, 582041, 581812, 583127, and 583128.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99417 timer base weigh?\u003c\/strong\u003e This timer base weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the timer base?\u003c\/strong\u003e The Sierra 18-99417 measures approximately 8 x 5 x 3 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this timer base work with single power pack ignition systems?\u003c\/strong\u003e No. The 18-99417 is designed for Johnson\/Evinrude 4 cylinder Cross Flow engines equipped with twin power packs, not single power pack setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my timer base needs replacing?\u003c\/strong\u003e Symptoms of a failing timer base on these Johnson\/Evinrude Cross Flow engines include misfiring, rough idle, hard starting, or loss of spark on one or more cylinders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99417 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-99417 is a Sierra-branded timer base manufactured as a replacement for Johnson\/Evinrude 4 cylinder Cross Flow ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-99417?\u003c\/strong\u003e The order includes one Sierra 18-99417 timer base unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-99417 fit an Evinrude engine outside the 1978-1987 range?\u003c\/strong\u003e The 18-99417 is specified for the 1978-1987 model years on the listed 4 cylinder Cross Flow HP range, so engines outside that range should be checked against their own OEM part number before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988444197083,"sku":"SIE-18-99417","price":309.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-3376_lg__91020.1558111288.500.750.jpg?v=1785188954"},{"product_id":"sierra-18-99453-timer-base-for-johnson-evinrude-6-cylinder-outboard-ignition-systems","title":"Sierra Timer Base 18-99453 for Johnson Evinrude 6 Cylinder Outboard Ignition","description":"\u003cp\u003eThe Sierra 18-99453 timer base is a replacement ignition component built for Johnson and Evinrude 6 cylinder outboard engines. The timer base is a core part of the points-style ignition system, working with the flywheel to control ignition timing as the engine runs. Over time the original timer base can wear at the follower or bearing points, causing rough running, misfires, or hard starting, and replacing it restores accurate, consistent timing to the ignition system.\u003c\/p\u003e\u003cp\u003eThis timer base is designed as a direct fit for Johnson and Evinrude 6 cylinder outboard powerheads, making it a straightforward swap for anyone servicing the ignition system on a compatible 6 cylinder OMC outboard. It is sold as a standalone timer base component for technicians and boat owners performing ignition system maintenance or troubleshooting timing-related running issues.\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 18-99453\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Johnson Evinrude Timer Base - 6 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Configuration:\u003c\/strong\u003e 6 cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson and Evinrude 6 cylinder outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-99453 timer base do?\u003c\/strong\u003e It is the ignition timer base for Johnson and Evinrude 6 cylinder outboard engines, working with the flywheel to control ignition timing as the engine runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-99453 timer base designed for?\u003c\/strong\u003e This timer base is designed for Johnson and Evinrude 6 cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99453 timer base weigh?\u003c\/strong\u003e The Sierra 18-99453 timer base weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this timer base for a 6 cylinder or 4 cylinder outboard?\u003c\/strong\u003e The 18-99453 is built specifically for 6 cylinder Johnson and Evinrude outboard engines, not 4 cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system category does this part belong to?\u003c\/strong\u003e The Sierra 18-99453 is categorized under the Evinrude outboard ignition system, as it is a core timing component of that system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace the timer base on my outboard?\u003c\/strong\u003e A worn timer base can cause inaccurate ignition timing, leading to rough running, misfires, or hard starting, so replacing the 18-99453 timer base restores proper timing control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99453 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-99453 is the Sierra manufacturer part number for this timer base.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand is this timer base made by?\u003c\/strong\u003e This timer base is manufactured by Sierra under part number 18-99453.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99453 timer base come with mounting hardware or other components?\u003c\/strong\u003e The 18-99453 is sold as the timer base component itself for Johnson and Evinrude 6 cylinder outboard ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-99453 timer base myself?\u003c\/strong\u003e The Sierra 18-99453 timer base is a direct-fit replacement for 6 cylinder Johnson and Evinrude outboards, suited to standard ignition system service and repair.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988444524763,"sku":"SIE-18-99453","price":299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-3048_lg__03168.1722496771.500.750.jpg?v=1785187997"},{"product_id":"sierra-18-99455-timer-base-for-johnson-evinrude-3-cylinder-outboards","title":"Sierra Timer Base 18-99455 for Johnson Evinrude 3-Cylinder Outboard Engines","description":"\u003cp\u003eThe Sierra 18-99455 timer base is an ignition system component built for Johnson and Evinrude 3 cylinder outboard engines. The timer base is the rotating ignition timing element that works with the distributor\/trigger assembly to control spark timing across the cylinders, and it is a common wear or failure point in older Johnson\/Evinrude ignition systems, especially when an engine develops intermittent spark, poor idle, or hard-starting symptoms. Replacing a worn or cracked timer base restores correct ignition timing and helps the engine run smoothly across the rev range.\u003c\/p\u003e\u003cp\u003eThis timer base is designed as a direct fit for 3 cylinder Johnson and Evinrude outboard powerheads, making it a straightforward service part for technicians and DIY boat owners performing ignition system maintenance or troubleshooting a no-spark condition. It ships as a standalone timer base component ready to install in place of the original unit.\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 18-99455\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Johnson Evinrude 3 Cylinder outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Ignition timer base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282395377\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Johnson and Evinrude 3 cylinder outboard engines.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99455 timer base fit?\u003c\/strong\u003e The Sierra 18-99455 timer base is designed for Johnson and Evinrude 3 cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a timer base do in an outboard ignition system?\u003c\/strong\u003e The timer base rotates to control ignition timing across the cylinders, working with the engine's distributor or trigger assembly to fire the spark at the correct point in each cylinder's cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99455 timer base weigh?\u003c\/strong\u003e It weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are signs that a timer base needs to be replaced?\u003c\/strong\u003e Intermittent spark, hard starting, rough idle, or inconsistent ignition timing on a Johnson or Evinrude 3 cylinder engine can point to a worn or cracked timer base like the Sierra 18-99455.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99455 a direct-fit replacement part?\u003c\/strong\u003e Yes, the Sierra 18-99455 timer base is built to fit in place of the original timer base on applicable Johnson Evinrude 3 cylinder outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-99455 include mounting hardware or other ignition parts?\u003c\/strong\u003e The Sierra 18-99455 is supplied as the timer base component itself; it does not include a distributor cap, points, or trigger assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this timer base be used on 4 or 6 cylinder Johnson Evinrude engines?\u003c\/strong\u003e No, the Sierra 18-99455 is specified for 3 cylinder Johnson and Evinrude outboard engines only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra a trusted brand for outboard ignition parts?\u003c\/strong\u003e Sierra is a long-established manufacturer of marine engine parts, and the 18-99455 timer base is one of its ignition components for Johnson Evinrude 3 cylinder outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is associated with the Sierra 18-99455 timer base?\u003c\/strong\u003e The UPC for the Sierra 18-99455 timer base is 808282395377.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would a timer base cause an outboard to run poorly on only some cylinders?\u003c\/strong\u003e Because the timer base coordinates spark timing to each cylinder in sequence, a worn or damaged unit like the one the Sierra 18-99455 replaces can cause uneven firing and rough running on a 3 cylinder Johnson or Evinrude engine.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988444655835,"sku":"SIE-18-99455","price":213.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-4558_lg__58671.1558112025.500.750.jpg?v=1785188122"},{"product_id":"sierra-18-99482-ignition-timer-base-for-johnson-evinrude-6-cylinder-outboards-interchange-133-1486","title":"Sierra Timer Base 18-99482 for Johnson Evinrude 6 Cylinder Outboard Engines","description":"\u003cp\u003eThe Sierra Timer Base 18-99482 is an ignition system timer base engineered for Johnson Evinrude 6 cylinder outboard engines. The timer base is a core component of the ignition system, working with the distributor and CD unit to control ignition timing as engine speed changes. This part is sold individually and is built to the fit and function of the original Johnson Evinrude timer base it replaces on applicable 6 cylinder outboard 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 18-99482\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Evinrude Outboard Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Johnson Evinrude, 6 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282395353\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99482 timer base fit?\u003c\/strong\u003e The Sierra 18-99482 timer base is designed for Johnson Evinrude 6 cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this timer base weigh?\u003c\/strong\u003e The Sierra 18-99482 timer base weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system does the 18-99482 belong to?\u003c\/strong\u003e It is listed within the Evinrude outboard ignition system category, working alongside the distributor and CD unit to manage ignition timing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many timer bases come in one package?\u003c\/strong\u003e Each package of the Sierra 18-99482 contains one timer base unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99482 a new part?\u003c\/strong\u003e Yes, the Sierra 18-99482 timer base is a new replacement component, not a rebuilt or used unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat function does a timer base serve in a Johnson Evinrude outboard?\u003c\/strong\u003e In a Johnson Evinrude 6 cylinder outboard, the timer base is the ignition component that adjusts ignition timing as engine speed changes, working with the engine's distributor and CD unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99482 fit 4 cylinder or V6 Evinrude engines?\u003c\/strong\u003e The Sierra 18-99482 timer base is specified for Johnson Evinrude 6 cylinder outboard engines; cylinder-specific fitment should be confirmed against the original timer base being replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part number should I reference when ordering this timer base?\u003c\/strong\u003e Order using Sierra part number 18-99482, the manufacturer part number for this Johnson Evinrude 6 cylinder timer base.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a UPC available for the 18-99482 timer base?\u003c\/strong\u003e Yes, the Sierra 18-99482 timer base carries UPC 808282395353.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category is the 18-99482 timer base listed under?\u003c\/strong\u003e This timer base is categorized as part of the Evinrude Outboard Ignition System line.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988445278427,"sku":"SIE-18-99482","price":327.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-133-1486_lg__74186.1722372297.500.750.jpg?v=1785188291"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/CDI-133-1486_lg__74186.1722372297.500.750.jpg?v=1785356977","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems-ignition-starting-distributor-components-points-condensers-contact-sets.oembed?page=2","provider":"Good Vibes Marina","version":"1.0","type":"link"}