{"title":"Engine Parts \u0026 Systems","description":null,"products":[{"product_id":"sierra-18-3017-marine-water-pump-impeller-replaces-mercury-force-47-89984t4-85-90-hp-outboard","title":"Sierra 18-3017 Impeller - Replaces Mercury Marine 47-89984, 47-30221 - MerCruiser MR\/Alpha One Stern Drives","description":"\u003cp\u003eThe Sierra 18-3017 is a replacement water pump impeller engineered for MerCruiser MR and Alpha One stern drives. As the wear component inside the drive's water pump, the impeller circulates raw water through the cooling system, and its flexible vanes are the first part to degrade from age, dry-running, or debris intake, which makes periodic replacement essential to prevent overheating. This impeller cross-references directly to Mercury Marine, MerCruiser stern drive, and Chrysler\/Force OEM part numbers, giving boat owners and marine technicians a straightforward way to source a correct replacement without going through the original engine manufacturer. It is built with a machined exterior for a consistent fit inside the pump housing and is sized for the pump body used on MR and Alpha One drives within specific serial number ranges. The 18-3017 is also the impeller specified for use inside a number of Sierra water pump kits and a complete lower gearcase rebuild kit, so it can be purchased on its own for a straight impeller swap or as part of a broader water pump service. At 0.2 pounds and approximately 1.5 x 6 x 6 inches as packaged, it is a compact, low-cost part that keeps a stern drive's raw water cooling system running as designed. Because fitment is tied to drive serial number, confirming the correct range before ordering helps ensure the right impeller is installed the first time.\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 18-3017\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 1.5 x 6 x 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999315045\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Sierra Kits:\u003c\/strong\u003e 18-3217, 18-3217D, 18-3251, 18-3251D, 18-3314, 18-3316, 18-3317, 18-3319, 18-3320, 18-3321, 18-3517, 18-8370\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference Numbers:\u003c\/strong\u003e 47-65960, 47-803631T, 47-89984, 47-89984T4, 694065, 47-F694065, 47-30221, 89840, 9-45306, 47-899844, 47-899842, 47-85460, 47-89984T3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser MR and Alpha One stern drives, serial numbers 2495186 to 2763441\u003c\/li\u003e\n\u003cli\u003eMerCruiser MR and Alpha One stern drives without a flush screw in the gear housing, serial numbers 2763442 to 6854392\u003c\/li\u003e\n\u003cli\u003eMerCruiser MR\/Alpha One stern drives, serial numbers 6854393 to 0D594568\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUnits in the 2763442 to 6854392 serial range that have been retro-fitted with an Alpha-style lower unit (no pre-load pin in the top of the driveshaft) require Alpha-style parts instead, and should use part numbers 18-3320 and 18-3420 rather than the standard parts listed for that range.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e47-65960\u003c\/li\u003e\n\u003cli\u003e47-803631T\u003c\/li\u003e\n\u003cli\u003e47-89984\u003c\/li\u003e\n\u003cli\u003e47-89984T4\u003c\/li\u003e\n\u003cli\u003e694065\u003c\/li\u003e\n\u003cli\u003e47-F694065\u003c\/li\u003e\n\u003cli\u003e47-30221\u003c\/li\u003e\n\u003cli\u003e89840\u003c\/li\u003e\n\u003cli\u003e9-45306\u003c\/li\u003e\n\u003cli\u003e47-899844\u003c\/li\u003e\n\u003cli\u003e47-899842\u003c\/li\u003e\n\u003cli\u003e47-85460\u003c\/li\u003e\n\u003cli\u003e47-89984T3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3017 impeller fit?\u003c\/strong\u003e The Sierra 18-3017 fits MerCruiser MR and Alpha One stern drives, and the correct application depends on the drive's serial number: 2495186 to 2763441, 2763442 to 6854392 (units without a flush screw in the gear housing), or 6854393 to 0D594568.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3017 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Part number 18-3017 is a Sierra-brand impeller sold under that number, made to cross-reference directly with the original Mercury Marine and MerCruiser impellers it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does 18-3017 replace?\u003c\/strong\u003e The 18-3017 cross-references to Mercury Marine and MerCruiser numbers 47-65960, 47-89984, 47-89984T4, 47-89984T3, 47-899842, 47-899844, 47-85460, 47-30221, and 694065, as well as Chrysler\/Force numbers 47-803631T and 47-F694065.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this impeller weigh?\u003c\/strong\u003e The Sierra 18-3017 impeller weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-3017?\u003c\/strong\u003e As packaged, the Sierra 18-3017 measures approximately 1.5 x 6 x 6 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 18-3017 if my drive has been retrofitted with an Alpha-style lower unit?\u003c\/strong\u003e No, not for units in the 2763442 to 6854392 serial range: if that drive has been retro-fitted with an Alpha-style lower unit (no pre-load pin in the top of the driveshaft), it needs Alpha-style parts 18-3320 and 18-3420 instead of the standard impeller listed for that range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-3017 impeller have?\u003c\/strong\u003e The Sierra 18-3017 has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-3017 used in any complete water pump kits?\u003c\/strong\u003e Yes, the 18-3017 impeller is specified for use inside several Sierra water pump kits, including 18-3217, 18-3251, 18-3314, 18-3316, 18-3317, 18-3319, 18-3320, 18-3321, 18-3517, and the 18-8370 complete lower gearcase rebuild kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if 18-3017 is the right impeller for my MerCruiser instead of a different Sierra number?\u003c\/strong\u003e Fitment for 18-3017 is tied to your MerCruiser MR or Alpha One drive's serial number falling within 2495186 to 6854392 (or up to 0D594568 for MR\/Alpha One units); drives outside these ranges, such as Alpha One Generation II, Vazer, or Bravo units, use a different impeller part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3017 include the water pump housing or gasket?\u003c\/strong\u003e The 18-3017 is the impeller itself; it is designed to install into the existing MerCruiser MR\/Alpha One water pump housing rather than including a housing or full gasket set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-3017 fit a Chrysler or Force outboard?\u003c\/strong\u003e The 18-3017 cross-references to Chrysler\/Force part numbers 47-803631T and 47-F694065, indicating compatibility with certain Chrysler\/Force applications that use those OEM impellers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48987964276955,"sku":"SIE-18-3017","price":19.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__02071.1753840677.500.750.jpg?v=1785189005"},{"product_id":"sierra-18-8960-4-wire-ignition-spark-tester-check-spark-on-up-to-4-ignition-wires-at-once","title":"Sierra 18-8960 4-Wire Ignition Spark Tester - Check Spark on Up to 4 Ignition Wires at Once","description":"\u003cp\u003eThe Sierra 18-8960 4-Wire Ignition Spark Tester is a marine diagnostic tool that lets you check for ignition spark on up to four ignition wires at a time. Built by Sierra, one of the most trusted names in the marine industry for over 50 years, it is engineered to meet or exceed the demands of today's high-horsepower engines while standing up to the harsh marine environment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSierra part number: 18-8960\u003c\/li\u003e\n\u003cli\u003eBrand: Sierra (manufactured by Teleflex)\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003ePower source: Corded electric\u003c\/li\u003e\n\u003cli\u003eChecks up to 4 ignition wires at a time\u003c\/li\u003e\n\u003cli\u003eItem dimensions: 0.51 x 5.98 x 5.98 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 1.5 lb\u003c\/li\u003e\n\u003cli\u003eUPC\/GTIN: 808282361167\u003c\/li\u003e\n\u003cli\u003eBacked by Sierra's Customer Satisfaction Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal - fits all ignition wires. Use to check for ignition spark in up to 4 ignition wires at a time.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-8960?\u003c\/strong\u003e The Sierra 18-8960 is a 4-Wire Ignition Spark Tester, a marine diagnostic tool used to check for ignition spark in up to four ignition wires at a time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many ignition wires can this tester check at once?\u003c\/strong\u003e The Sierra 18-8960 can check for ignition spark in up to 4 ignition wires at a time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the part number for this spark tester?\u003c\/strong\u003e The Sierra part number is 18-8960.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho manufactures the Sierra 18-8960 spark tester?\u003c\/strong\u003e It is a Sierra-branded product manufactured by Teleflex.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition wires does the 18-8960 fit?\u003c\/strong\u003e The 18-8960 fits all ignition wires, making it a universal ignition spark testing tool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-8960 spark tester?\u003c\/strong\u003e The Sierra 18-8960 spark tester is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-8960?\u003c\/strong\u003e The item measures 0.51 x 5.98 x 5.98 inches and weighs 1.5 lb.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8960 covered by a warranty?\u003c\/strong\u003e Yes. All Sierra parts qualify for and are covered under Sierra's Customer Satisfaction Warranty, which covers defects in workmanship and materials for the useful life of the product, subject to additional terms, conditions, and limitations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-8960?\u003c\/strong\u003e The UPC and GTIN for the Sierra 18-8960 is 808282361167.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat power source does the spark tester use?\u003c\/strong\u003e The Sierra 18-8960 is listed with a corded electric power source.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988011757787,"sku":"SIE-18-8960-1","price":112.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-511-9766_lg__58818.1558114641.500.750.jpg?v=1785188347"},{"product_id":"sierra-18-0035-full-flow-diesel-oil-filter-replaces-volvo-penta-3582732","title":"Sierra 18-0035 Full Flow Diesel Oil Filter, Replaces Volvo Penta 3582732, Fits D4 Series Engines","description":"\u003cp\u003eThe Sierra 18-0035 is a full flow diesel oil filter engineered for Volvo Penta D4 series marine diesel engines. As the full flow filter in the engine's lubrication system, it processes all oil circulating to the engine, trapping contaminants with high-efficiency filter media that meets or exceeds original equipment filtration standards. The filter uses a heavy-wall steel canister for structural strength under marine operating pressures, and the canister is epoxy coated for corrosion resistance in the harsh marine environment -- an important detail for engines operating in salt air and bilge moisture.\u003c\/p\u003e\u003cp\u003eThis filter carries an M16 x 1.5 thread and cross-references directly to Volvo Penta OEM part 3582732. It is designed to work with 15W-40 oil meeting VDS-2 or VDS-3 \/ API CI-4 or higher specifications, and pairs with a 12.5 liter (13.2 quart) full oil capacity on the D4 engines it fits. A companion bypass filter (Sierra 18-0036, Volvo Penta 3582733) is used alongside the full flow filter on the same engines to filter a smaller side stream of oil for finer particulate removal -- the 18-0035 is the full flow unit, not the bypass 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 18-0035\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Full Flow Oil Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Epoxy coated, white\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M16 x 1.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.77 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Capacity (D4 Series, Full Flow):\u003c\/strong\u003e 12.5 liters \/ 13.2 quarts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Oil:\u003c\/strong\u003e 15W-40, VDS-2 or VDS-3 \/ API CI-4 or higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 3582732\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282290863\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta D4-180iB \/ C \/ D \/ E, 2005 - Current\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-210A-A \/ A-B, 2003 - 2006\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-210i-A \/ B, 2003 - 2006\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-225A-B, 2005 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-225i-B, 2005 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-260A-A \/ A-B \/ D-B(IPS), 2004 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-260i-A \/ B, 2004 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-300A-A \/ A-E \/ D-A, 2007 - Current\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3582732\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0035 oil filter fit?\u003c\/strong\u003e The Sierra 18-0035 full flow diesel oil filter fits Volvo Penta D4 series engines, including the D4-180iB\/C\/D\/E, D4-210A-A\/A-B, D4-210i-A\/B, D4-225A-B, D4-225i-B, D4-260A-A\/A-B\/D-B(IPS), D4-260i-A\/B, and D4-300A-A\/A-E\/D-A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0035 an OEM or aftermarket filter?\u003c\/strong\u003e It is a Sierra manufactured filter built to meet or exceed the filtration performance of the original Volvo Penta part it replaces, part number 3582732.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the 18-0035 cross-reference to?\u003c\/strong\u003e This filter replaces Volvo Penta OEM number 3582732.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-0035 use?\u003c\/strong\u003e The Sierra 18-0035 has an M16 x 1.5 thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this oil filter?\u003c\/strong\u003e The Sierra 18-0035 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0035 filter weigh?\u003c\/strong\u003e It weighs 1.77 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-0035 made of?\u003c\/strong\u003e The filter uses a heavy-wall steel canister with an epoxy coated white finish for corrosion resistance in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between the 18-0035 and the 18-0036 filter?\u003c\/strong\u003e The 18-0035 is the full flow oil filter (replacing Volvo Penta 3582732), while the 18-0036 is the companion bypass filter (replacing Volvo Penta 3582733) used on the same D4 engines to filter a smaller side stream of oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat oil should be used with the Sierra 18-0035?\u003c\/strong\u003e Volvo Penta D4 engines using this full flow filter call for 15W-40 oil meeting VDS-2 or VDS-3 \/ API CI-4 or higher, with a full oil capacity of 12.5 liters (13.2 quarts).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0035 a full flow or bypass filter?\u003c\/strong\u003e It is the full flow filter, meaning it filters all of the oil circulating through the D4 engine's lubrication system rather than a partial side stream.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many filters come in one order of 18-0035?\u003c\/strong\u003e Each 18-0035 order is for one Sierra full flow diesel oil filter.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988012314843,"sku":"SIE-18-0035","price":26.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0035__56873.1558184433.500.750.jpg?v=1785188625"},{"product_id":"sierra-18-0036-bypass-diesel-oil-filter-for-volvo-penta-replaces-oem-3582733","title":"Sierra 18-0036 Bypass Diesel Oil Filter, Replaces Volvo Penta 3582733, Fits D4 Series Engines","description":"\u003cp\u003eThe Sierra 18-0036 is a bypass-style diesel oil filter engineered for the harsh marine environment, built to meet or exceed the filtration performance of the original equipment part it replaces. It is designed as a direct fitment for Volvo Penta D4 series diesel engines, including the D4-180i, D4-210, D4-225, D4-260, and D4-300 model families, where it works as the bypass filter alongside the engine's full-flow filter to provide finer, secondary oil filtration and extend engine oil life.\u003c\/p\u003e\u003cp\u003eConstruction is a heavy-wall steel canister that is epoxy coated for corrosion resistance, standing up to the moisture and salt exposure typical of marine engine rooms. The high-efficiency filter media inside meets or exceeds OE filtration standards, trapping fine contaminants that a full-flow filter alone can miss. These D4 engines call for a 15W-40 oil meeting VDS-2 or VDS-3 \/ API CI-4 or higher specification, with a total engine oil capacity of 12.5 liters (13.2 quarts).\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 18-0036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Type:\u003c\/strong\u003e Bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel, epoxy coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10 x 10 x 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.69 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Oil:\u003c\/strong\u003e 15W-40, VDS-2 or VDS-3 \/ API CI-4 or higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Oil Capacity:\u003c\/strong\u003e 12.5L \/ 13.2 Qt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 3582733\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta D4-180iB \/ C \/ D \/ E, 2005 - Current\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-210A-A \/ A-B, 2003 - 2006\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-210i-A \/ B, 2003 - 2006\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-225A-B, 2005 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-225i-B, 2005 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-260A-A \/ A-B \/ D-B, 2004 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-260i-A \/ B, 2004 - 2008\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-300A-A \/ A-E \/ D-A, 2007 - Current\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3582733\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0036 fit?\u003c\/strong\u003e It fits Volvo Penta D4 series diesel engines, specifically the D4-180iB\/C\/D\/E (2005-Current), D4-210A-A\/A-B and D4-210i-A\/B (2003-2006), D4-225A-B and D4-225i-B (2005-2008), D4-260A-A\/A-B\/D-B and D4-260i-A\/B (2004-2008), and D4-300A-A\/A-E\/D-A (2007-Current).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0036 a full-flow or bypass filter?\u003c\/strong\u003e The 18-0036 is a bypass filter, used alongside the engine's separate full-flow filter to provide additional fine filtration of the engine oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0036 cross to a Volvo Penta OEM number?\u003c\/strong\u003e Yes, the Sierra 18-0036 is the equivalent of Volvo Penta OEM part number 3582733.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0036 made of?\u003c\/strong\u003e It uses a heavy-wall steel canister with an epoxy coating for corrosion resistance in the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0036 oil filter weigh?\u003c\/strong\u003e The Sierra 18-0036 weighs 1.69 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this filter?\u003c\/strong\u003e Item dimensions for the Sierra 18-0036 are 10 x 10 x 10 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat oil should be used with the D4 engines this filter fits?\u003c\/strong\u003e Volvo Penta D4 engines that use the 18-0036 call for 15W-40 oil meeting VDS-2 or VDS-3 \/ API CI-4 or higher, with a total engine oil capacity of 12.5 liters (13.2 quarts).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many filters come in one package?\u003c\/strong\u003e One Sierra 18-0036 bypass diesel oil filter is included per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0036 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-0036 is a Sierra-branded aftermarket filter engineered to meet or exceed the filtration performance of the original Volvo Penta 3582733 part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-0036 filter?\u003c\/strong\u003e The 18-0036 bypass diesel oil filter is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need both a full-flow and a bypass filter for my D4 engine?\u003c\/strong\u003e Volvo Penta D4 engines listed for the 18-0036 use a bypass filter in addition to a separate full-flow filter (Sierra 18-0035 covers the full-flow position on these same engines).\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988012511451,"sku":"SIE-18-0036","price":32.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0036__53307.1558184436.500.750.jpg?v=1785188881"},{"product_id":"sierra-18-0102-water-passage-cover-gasket-replaces-omc-322858-for-johnson-evinrude-outboard-motors","title":"Sierra Inner Exhaust Cover Gasket 18-0102, Replaces OMC 326264, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-0102 is an inner exhaust cover gasket built for Johnson and Evinrude outboard motors. It seals the inner exhaust cover against the powerhead, preventing exhaust leaks and maintaining proper cooling water and exhaust routing through the outboard's exhaust housing. This gasket is a direct replacement for OMC part number 326264, letting you restore a factory-tight seal without sourcing the original OMC part.\u003c\/p\u003e\u003cp\u003eThe gasket is finished in white and is sold individually (package quantity of 1), so you can order exactly the quantity your job requires. It is manufactured in the United States and carries Sierra's limited warranty. As with any exhaust or cover gasket, this is a wear item that should be replaced any time the inner exhaust cover is removed, since reusing an old gasket risks an incomplete seal and exhaust or water leakage.\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 18-0102\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Inner Exhaust Cover Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 326264\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999750853\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Outboard Brands:\u003c\/strong\u003e Johnson, Evinrude\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Johnson and Evinrude outboard motors.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003e326264\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0102 gasket fit?\u003c\/strong\u003e The Sierra 18-0102 inner exhaust cover gasket is designed to fit Johnson and Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-0102 replace?\u003c\/strong\u003e Sierra 18-0102 replaces OMC part number 326264, so it can be used as a direct substitute for that original equipment gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a package?\u003c\/strong\u003e Each package of the Sierra 18-0102 contains a single gasket (package quantity of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0102 gasket weigh?\u003c\/strong\u003e It weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-0102 gasket?\u003c\/strong\u003e This gasket is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-0102 gasket made?\u003c\/strong\u003e It is manufactured in the United States.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0102 an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket gasket manufactured to replace OMC part number 326264, not an original OMC-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere on the outboard is this gasket installed?\u003c\/strong\u003e The 18-0102 is an inner exhaust cover gasket, used to seal the inner exhaust cover on Johnson and Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I reuse my old exhaust cover gasket when servicing the outboard?\u003c\/strong\u003e No. Once the inner exhaust cover is removed, the old gasket should be replaced with a new Sierra 18-0102 to maintain a proper seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0102 come with a warranty?\u003c\/strong\u003e Yes, it is covered by Sierra's limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988012806363,"sku":"SIE-18-0102","price":10.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0102_lg__45622.1558119955.500.750.jpg?v=1785188774"},{"product_id":"exhaust-elbow-gasket-2-pack-replaces-omc-907764-fits-omc-exhaust-manifolds","title":"Sierra Exhaust Elbow Gasket, Replaces OMC 907764, 2-Pack (18-0104-9)","description":"\u003cp\u003eThe Sierra Exhaust Elbow Gasket (18-0104-9) seals the exhaust elbow on OMC exhaust manifold assemblies, providing the gasket surface needed between the elbow and manifold to prevent exhaust and water leakage at the joint. This gasket is sold as a 2-pack, so buyers get a matched pair for the job in a single purchase rather than ordering individual gaskets separately. It directly replaces OEM number 907764, making it a straightforward drop-in choice for anyone servicing an OMC exhaust manifold and needing the correct elbow gasket without hunting down the original part. Because it is designed specifically for this application, it is sized and shaped to seat correctly against the mating surfaces of the exhaust elbow and manifold, supporting a proper seal when reassembled with correct torque on the mounting fasteners. At just 0.04 pounds, the gasket set is light and easy to handle, ships compactly, and is inexpensive to keep on hand as a maintenance spare. Whether replacing a gasket that has hardened, cracked, or begun to leak with age and heat cycling, or performing a routine exhaust elbow removal for inspection or cleaning, this gasket restores the seal needed for proper operation.\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 18-0104-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e OMC exhaust manifolds\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 808282161279\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits OMC exhaust manifold applications using the 907764 exhaust elbow gasket.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e907764\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0104-9 exhaust elbow gasket fit?\u003c\/strong\u003e The Sierra 18-0104-9 exhaust elbow gasket is designed for OMC exhaust manifold applications, sealing the joint between the exhaust elbow and the manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one pack of 18-0104-9?\u003c\/strong\u003e This listing includes 2 exhaust elbow gaskets per pack, so you get a matched pair in a single order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-0104-9 replace OEM part number 907764?\u003c\/strong\u003e Yes, the Sierra 18-0104-9 gasket is a direct replacement for OEM number 907764.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra exhaust elbow gasket weigh?\u003c\/strong\u003e The 18-0104-9 gasket set weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gasket made by Sierra or is it a generic aftermarket part?\u003c\/strong\u003e It is manufactured by Sierra under part number 18-0104-9, sold as a direct replacement for the OMC exhaust elbow gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace an exhaust elbow gasket like this one?\u003c\/strong\u003e An exhaust elbow gasket such as the Sierra 18-0104-9 should be replaced when the old gasket has hardened, cracked, or is leaking exhaust or water at the elbow-to-manifold joint, or any time the exhaust elbow is removed for service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0104-9 exhaust elbow gasket?\u003c\/strong\u003e The UPC for this 2-pack of Sierra exhaust elbow gaskets is 808282161279.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy just one exhaust elbow gasket instead of a 2-pack?\u003c\/strong\u003e This Sierra part, 18-0104-9, is sold and priced as a 2-pack, providing two gaskets in each order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-0104-9 gasket seal properly on an OMC exhaust manifold without modification?\u003c\/strong\u003e Yes, the 18-0104-9 gasket is sized for OMC exhaust manifold applications and is intended to seat directly against the elbow and manifold mating surfaces without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0104-9 gasket cross-reference to any other part number?\u003c\/strong\u003e Yes, it cross-references to OEM number 907764.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988018016475,"sku":"SIE-18-0104-9","price":4.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0104_lg__25732.1558120150.500.750.jpg?v=1785329158"},{"product_id":"shields-fire-acol-type-a2-fuel-fill-hose-1-1-2-in-id-x-12-1-2-ft-alcohol-resistant-uscg-type-a2-mpn-116-350-1124","title":"Sierra Shields Fire-Acol Fuel Fill Hose 16-350-1124, 1 1\/2 Inch x 12.5 Feet, Type A2","description":"\u003cp\u003eThe Sierra 16-350-1124 is a Fire-Acol \"C\" fuel fill hose built for pleasure boat fuel fill systems where resistance to gasoline and alcohol-blended fuels matters. It measures 1 1\/2 inch inside diameter by 12.5 feet in length, sized to run from a boat's deck fill fitting to the fuel tank. The hose is compounded specifically to resist gasoline\/alcohol blends and is engineered for low permeation, meaning less fuel vapor escapes through the hose wall over time. A special compound also resists cover deterioration caused by alcohol fuel sitting in the hose, a common failure point in fuel fill lines that see ethanol-blended gas.\u003c\/p\u003e\u003cp\u003eConstruction is 2-ply, reinforced with a wire helix embedded between plies of heavy-duty synthetic cord, giving the hose crush resistance while keeping it flexible enough to route through tight fill compartments. The cover is abrasion resistant to stand up to contact with surrounding structure and hardware. This hose is rated to a 90 psi burst pressure and is designed for a -5F to 180F operating temperature range. It is intended for fuel fill service with either gasoline or diesel, for pleasure boats only, and is not rated for use beyond that application.\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 16-350-1124\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Type:\u003c\/strong\u003e Fire-Acol \"C\" Fuel Fill Hose, Type A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 1 1\/2 inch (38.1 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 1 57\/64 inch (48.0 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePly:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e 90 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Helix Coil Count:\u003c\/strong\u003e 77\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 12.5 feet (3.8 m)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 19.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -5F to 180F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e HD synthetic cord with embedded wire helix reinforcement, alcohol\/gasoline-resistant compound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fuel fill hose for gasoline or diesel, pleasure boats only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999571885\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis is a universal fuel fill hose sized by diameter and length rather than by a specific boat make or model; confirm your existing fuel fill hose's inside diameter matches 1 1\/2 inch before ordering.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 16-350-1124 fuel fill hose?\u003c\/strong\u003e It measures 1 1\/2 inch inside diameter by 12.5 feet in length, with a 1 57\/64 inch outside diameter, making it the standard size for many pleasure boat deck fill runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose rated for both gasoline and diesel?\u003c\/strong\u003e Yes, the Fire-Acol Type A2 hose (Sierra 16-350-1124) is used for fuel fill service with either gasoline or diesel on pleasure boats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose handle ethanol-blended fuel?\u003c\/strong\u003e It is compounded to resist gasoline\/alcohol blends and is engineered for low permeation, and a special compound resists cover deterioration caused by alcohol fuel resting in the hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the burst pressure rating of the 16-350-1124 hose?\u003c\/strong\u003e 90 psi is the burst pressure rating for this Sierra fuel fill hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the hose reinforced?\u003c\/strong\u003e A wire helix is embedded between plies of heavy-duty synthetic cord, giving the 2-ply construction crush resistance while keeping the hose flexible for routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range is this fuel fill hose rated for?\u003c\/strong\u003e The Sierra 16-350-1124 hose has an operating temperature range of -5F to 180F.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 16-350-1124 hose weigh?\u003c\/strong\u003e This 12.5 foot length weighs 19.25 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose abrasion resistant?\u003c\/strong\u003e Yes, the cover is abrasion resistant, which helps it hold up where the fuel fill run contacts surrounding structure or hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose approved for use on commercial vessels?\u003c\/strong\u003e No, the Fire-Acol Type A2 hose is intended for fuel fill use on pleasure boats only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many plies does this fuel fill hose have?\u003c\/strong\u003e The 16-350-1124 hose is built with 2 plies reinforced by an embedded wire helix.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat length does the 16-350-1124 part number cover?\u003c\/strong\u003e This part number corresponds to a 12.5 foot length of 1 1\/2 inch inside diameter Fire-Acol fuel fill hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988018737371,"sku":"SIE-16-350-1124","price":148.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/i_601df0b9-9eeb-47ab-9a7f-84ec0f215271.jpg?v=1785353674"},{"product_id":"sierra-116-355-1123-fire-acol-fuel-fill-hose-1-1-2-i-d-x-10-ft-sae-j1527-type-a2-shields-16-355-1123","title":"Sierra 16-355-1123 Fuel Fill Hose, 1-1\/2 Inch x 10 Feet, Type A2 Low-Permeation","description":"\u003cp\u003eThe Sierra 16-355-1123 is a 1-1\/2 inch fuel fill hose built for pleasure boats, sized at 10 feet in length. It is engineered to resist gasoline\/alcohol (ethanol) blends and is compounded specifically for low permeation, so vapor loss through the hose wall stays minimal over the life of the boat. The hose is abrasion resistant and is reinforced with a wire helix imbedded between plies of heavy-duty synthetic cord, giving it the structural integrity to hold its shape under vacuum during fueling while resisting kinking and collapse.\u003c\/p\u003e\u003cp\u003eThis hose is used for the fuel fill run (gas or diesel) between the deck fill fitting and the fuel tank, and it is rated for pleasure boat use only, not for portable tanks or non-marine applications. It meets SAE J1527 Type A2 and ISO 7840 Type A2 standards and carries NMMA\/CE Type Accepted status, confirming it is built to recognized marine fuel-system safety standards. With a 2-ply synthetic construction, a 1-57\/64 inch outside diameter, and a 90 psi burst rating, it is sized to handle standard fuel-fill plumbing on boats using 1-1\/2 inch fill hose. The same hose diameter is also offered by Sierra in a 10 foot carton-packed version (16-355-1123BX) and in other stock lengths, so buyers replacing a full run or building out fuel-fill plumbing can match the length they need.\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 16-355-1123\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuel Fill Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 1-1\/2 inches (38.1 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 1-57\/64 inches (48.0 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePly:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e 90 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 10 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic, HD synthetic cord reinforced with imbedded wire helix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e SAE J1527 Type A2, ISO 7840 Type A2, NMMA\/CE Type Accepted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fuel fill hose for gasoline or diesel, pleasure boats only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282199951\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 16-355-1123 fuel fill hose?\u003c\/strong\u003e It has a 1-1\/2 inch inside diameter (38.1 mm) and a 1-57\/64 inch outside diameter (48.0 mm), and it is cut to a 10 foot length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose rated for both gasoline and diesel?\u003c\/strong\u003e Yes, the 16-355-1123 fuel fill hose is used for fuel fill service with either gas or diesel and is intended for pleasure boats only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose handle ethanol-blended fuel?\u003c\/strong\u003e It resists gasoline\/alcohol blends and is compounded for low permeation, so it is built to handle ethanol-blended pump gas without excessive vapor loss.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat safety standards does the 16-355-1123 meet?\u003c\/strong\u003e This hose meets SAE J1527 Type A2 and ISO 7840 Type A2 standards and carries NMMA\/CE Type Accepted status.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the hose construction made of?\u003c\/strong\u003e The 16-355-1123 is a 2-ply synthetic hose reinforced with a wire helix imbedded between plies of heavy-duty synthetic cord, and it is finished in black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the burst pressure rating?\u003c\/strong\u003e The hose carries a 90 psi burst pressure rating at its 1-1\/2 inch size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this fuel fill hose weigh?\u003c\/strong\u003e The 10 foot length of Sierra 16-355-1123 weighs 7.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose abrasion resistant?\u003c\/strong\u003e Yes, the 16-355-1123 is abrasion resistant, which helps it hold up where it runs against hull structure or other components in the fill line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between 16-355-1123 and 16-355-1123BX?\u003c\/strong\u003e Both are the same 1-1\/2 inch, 10 foot fuel fill hose; 16-355-1123BX is the carton-packaged version of the identical hose, while 16-355-1123 is the standard stock code for the same length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used on a portable fuel tank?\u003c\/strong\u003e No, the 16-355-1123 fuel fill hose is intended for pleasure boat fuel fill installations, not portable tank applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat wall thickness does the hose have?\u003c\/strong\u003e The 16-355-1123 has a nominal wall thickness of 0.25 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this hose used on a boat?\u003c\/strong\u003e It is installed as the fuel fill run connecting the deck fill fitting to the fuel tank on pleasure boats.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988018901211,"sku":"SIE-16-355-1123","price":105.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51kvhyf_IWL.jpg?v=1784385232"},{"product_id":"shields-fire-acol-fuel-vent-hose-5-8-in-x-10-ft-uscg-type-a2-sierra-116-369-0583","title":"Sierra Shields Fire-Acol Fuel Vent Hose 16-369-0583, 5\/8 Inch x 10 Feet, USCG Type A2","description":"\u003cp\u003eThe Sierra Shields Fire-Acol Fuel Vent Hose (16-369-0583) is a 5\/8 inch inside diameter marine fuel vent hose supplied in a 10 foot Polypac length. It is built to resist gasoline and alcohol blended fuels and is fire resistant, making it suited for use as a fuel vent line on gasoline engines running fuels blended up to 85% ethanol as well as diesel fuel systems. The hose features a weather and UV resistant NBR\/PVC cover that protects the hose from marine environmental exposure over time.\u003c\/p\u003e\u003cp\u003eThis hose carries an inside diameter of 5\/8 inch (15.9 mm) and an outside diameter of 31\/32 inch (24.6 mm), with a maximum working pressure rating of 50 psi. It is rated for a temperature range of -20 degrees F to 160 degrees F. The hose meets USCG Type A2 requirements for pleasure boats, and meets SAE J1527 Type A2, ISO 7840 Type A2, and NMMA\/CE Type accepted standards, confirming its suitability for fuel vent line service on recreational boats.\u003c\/p\u003e\u003cp\u003eBecause it is a vent line hose rather than a fuel feed hose, it is intended for routing fuel tank vapor rather than pressurized fuel supply. It is sold as a single 10 foot length, ready to cut to the run required for the installation.\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 16-369-0583\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 5\/8 inch (15.9 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 31\/32 inch (24.6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 10 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure:\u003c\/strong\u003e 50 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Class Code:\u003c\/strong\u003e C-25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.76 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e NBR\/PVC cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Multicolored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20 degrees F to 160 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e USCG Type A2, SAE J1527 Type A2, ISO 7840 Type A2, NMMA\/CE Type accepted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fuel vent lines for gasoline up to 85% ethanol blended fuels and diesel fuel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Resistance:\u003c\/strong\u003e Resists gasoline\/alcohol blended fuel and is fire resistant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis is a universal marine fuel vent hose sized at 5\/8 inch inside diameter; no specific make, engine, or model fitment is specified.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of the Sierra 16-369-0583 fuel vent hose?\u003c\/strong\u003e The Sierra 16-369-0583 Shields Fire-Acol Fuel Vent Hose has a 5\/8 inch (15.9 mm) inside diameter and a 31\/32 inch (24.6 mm) outside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is this hose?\u003c\/strong\u003e Part number 16-369-0583 is sold in a 10 foot length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose fire resistant?\u003c\/strong\u003e Yes, the Shields Fire-Acol Fuel Vent Hose is fire resistant and resists gasoline\/alcohol blended fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fuels is this vent hose rated for?\u003c\/strong\u003e The 16-369-0583 hose is rated for gasoline blended fuels up to 85% ethanol, as well as diesel fuel, when used as a fuel vent line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range can this hose handle?\u003c\/strong\u003e This hose is rated for a temperature range of -20 degrees F to 160 degrees F.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum working pressure of this hose?\u003c\/strong\u003e The maximum working pressure for the 16-369-0583 fuel vent hose is 50 psi.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the hose material?\u003c\/strong\u003e The 16-369-0583 hose has an NBR\/PVC cover that is weather and UV resistant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose meet marine safety standards?\u003c\/strong\u003e Yes, the Sierra Shields Fire-Acol Fuel Vent Hose meets USCG Type A2 requirements for pleasure boats, along with SAE J1527 Type A2, ISO 7840 Type A2, and NMMA\/CE Type accepted standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a fuel feed hose or a fuel vent hose?\u003c\/strong\u003e The 16-369-0583 is a fuel vent hose, designed for venting fuel tank vapor rather than supplying pressurized fuel feed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this hose weigh?\u003c\/strong\u003e The 10 foot length of the Sierra 16-369-0583 fuel vent hose weighs 2.76 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this hose?\u003c\/strong\u003e The Sierra 16-369-0583 fuel vent hose is multicolored.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, part number 16-369-0583 is a genuine Sierra Shields Fire-Acol Fuel Vent Hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988019458267,"sku":"SIE-16-369-0583","price":41.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51hAucXKoqL.jpg?v=1784385303"},{"product_id":"sierra-18-0115-powerhead-base-gasket-replaces-27-f307279-2-fits-force-chrysler-125-150-hp-outboards-pack-of-2","title":"Sierra Powerhead Base Gasket 18-0115, Replaces 27-F307279-2, Fits Chrysler\/Force 150 HP 1989-1994","description":"\u003cp\u003eThe Sierra Powerhead Base Gasket, part number 18-0115, seals the joint between the powerhead and the crankcase on covered Chrysler\/Force outboards, sold as a package of two so you have a spare on hand for the next service interval. A properly seated base gasket is essential to maintaining crankcase compression and preventing air or oil leaks at the powerhead mating surface, both of which can cause hard starting, rough idle, or reduced power if the seal fails.\u003c\/p\u003e\u003cp\u003eThis gasket is a direct equivalent to Chrysler\/Force OEM part 27-F307279-2, so it installs in place of the original without modification. It is designed for the Chrysler\/Force 150 HP outboard built in the 1989-1994 model years within serial number range E000001-E093699. Because base gaskets are a wear item that should be replaced any time the powerhead is removed or reseated, keeping the included pair on hand covers both a current job and a future one.\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 18-0115\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Powerhead Base Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 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\u003eUPC:\u003c\/strong\u003e 030999750938\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-F307279-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eChrysler\/Force 150 HP outboard, 1989-1994, serial number range E000001-E093699\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-F307279-2\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0115 powerhead base gasket fit?\u003c\/strong\u003e Sierra part 18-0115 fits the Chrysler\/Force 150 HP outboard built in the 1989-1994 model years, within serial number range E000001-E093699.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in this package?\u003c\/strong\u003e The 18-0115 powerhead base gasket ships as a package of two, giving you a spare for the next time the powerhead is serviced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0115 a direct replacement for the original Chrysler\/Force gasket?\u003c\/strong\u003e Yes, 18-0115 replaces OEM part 27-F307279-2 and installs in the same location without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM part number that 18-0115 replaces?\u003c\/strong\u003e It replaces Chrysler\/Force part number 27-F307279-2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the powerhead base gasket weigh?\u003c\/strong\u003e Each package of the 18-0115 base gasket weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-0115 gasket?\u003c\/strong\u003e The gasket measures approximately 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the powerhead base gasket on my Chrysler\/Force outboard?\u003c\/strong\u003e The 18-0115 base gasket should be replaced any time the powerhead is removed or reseated on a compatible Chrysler\/Force 150 HP outboard, since the seal cannot be reused reliably once broken.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat happens if the powerhead base gasket fails?\u003c\/strong\u003e A failed base gasket can allow air or oil leaks at the powerhead-to-crankcase joint, leading to hard starting, rough idle, or reduced power, which is why Sierra part 18-0115 is stocked as a maintenance replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gasket brand new or a used part?\u003c\/strong\u003e The Sierra 18-0115 powerhead base gasket is a new replacement part, sold in a sealed package of two.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-0115 fit other Chrysler\/Force horsepower models?\u003c\/strong\u003e 18-0115 is specified for the 150 HP Chrysler\/Force outboard within serial range E000001-E093699; other horsepower or serial ranges use a different Sierra part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is associated with the 18-0115 gasket?\u003c\/strong\u003e The Sierra 18-0115 powerhead base gasket carries UPC 030999750938.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988021784795,"sku":"SIE-18-0115","price":2.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0115_lg_1__65944.1558117768.500.750.jpg?v=1785188279"},{"product_id":"exhaust-cover-gasket-for-evinrude-outboards-replaces-oem-325211-mpn-118-0128","title":"Sierra Powerhead Base Gasket 18-0128 for Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-0128 Powerhead Base Gasket is a replacement gasket designed for Evinrude outboard motors, seated at the base of the powerhead to help maintain a proper seal during operation. As a base gasket, it is a wear item that should be replaced any time the powerhead is removed or serviced, ensuring the mating surfaces seal correctly when the assembly is reinstalled. It is offered as part of Sierra's lineup of Evinrude outboard gasket sets, giving outboard owners and marine technicians a dedicated Sierra part number to order for this specific application.\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 18-0128\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Powerhead Base Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Gasket Sets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999751034\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eEvinrude outboard motors (powerhead base application)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0128?\u003c\/strong\u003e Sierra 18-0128 is a Powerhead Base Gasket made for Evinrude outboard motors, used to seal the base of the powerhead assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this gasket used for?\u003c\/strong\u003e It seals the mating surface at the base of the powerhead on Evinrude outboard motors, and is intended to be replaced whenever the powerhead is removed for service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0128 gasket weigh?\u003c\/strong\u003e The Sierra 18-0128 Powerhead Base Gasket weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand of outboard does this gasket fit?\u003c\/strong\u003e This gasket is designed for Evinrude outboard motors and is listed within Sierra's Evinrude outboard gasket sets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0128 the correct part number to order?\u003c\/strong\u003e Yes, 18-0128 is the Sierra part number for this specific Powerhead Base Gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0128 gasket sold individually?\u003c\/strong\u003e The 18-0128 is listed as the Powerhead Base Gasket itself, within Sierra's category of Evinrude outboard gasket sets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0128 gasket?\u003c\/strong\u003e The UPC for the Sierra Powerhead Base Gasket, part number 18-0128, is 030999751034.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the powerhead base gasket be replaced?\u003c\/strong\u003e The Sierra 18-0128 Powerhead Base Gasket should be replaced whenever the powerhead is removed from an Evinrude outboard for service, since the old gasket should not be reused.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0128 gasket include installation instructions?\u003c\/strong\u003e No installation instructions are specified for the Sierra 18-0128 Powerhead Base Gasket; it is supplied as the replacement gasket only.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988022997211,"sku":"SIE-18-0128","price":9.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0128_lg__51106.1558118711.500.750.jpg?v=1785329179"},{"product_id":"sierra-18-0133-water-jacket-cover-gasket-for-mercury-outboards-replaces-oem-27-73665","title":"Sierra Water Jacket Gasket 18-0133, Replaces 27-73665 and 27-52892, for 4 Cylinder Outboards","description":"\u003cp\u003eThe Sierra Water Jacket Gasket, part number 18-0133, seals the water jacket cover on 4 cylinder outboard engines, forming the barrier between the cooling passages and the engine block to prevent coolant leaks and maintain proper cooling system pressure. Correct sealing at this joint is essential to preventing overheating and coolant loss, so this gasket is intended to be replaced any time the water jacket cover is removed for service rather than reused. It is manufactured to the dimensions and fit of the original equipment cover it mates to, measuring 0.39 x 0.39 x 0.39 inches and weighing 0.12 pounds, making it a compact, low-cost component that is easy to keep on hand as routine maintenance stock.\u003c\/p\u003e\u003cp\u003eThis gasket is sold individually (priced per piece). Buyers who need multiple units can order the package of 5 by requesting part number 18-0133-9 instead.\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 18-0133\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Jacket Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 4 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.12 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\u003ePackaging:\u003c\/strong\u003e Sold individually; package of 5 available as 18-0133-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-73665, 27-52892\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999754950\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e4 Cylinder outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e27-73665\u003c\/li\u003e\n\u003cli\u003e27-52892\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0133 gasket fit?\u003c\/strong\u003e The 18-0133 water jacket gasket is designed for 4 cylinder outboard engines, sealing the water jacket cover against the engine block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0133 a direct replacement for OEM gaskets?\u003c\/strong\u003e Yes, part 18-0133 replaces OEM gaskets 27-73665 and 27-52892, so either original number can be used to confirm this is the correct part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-0133 water jacket gasket?\u003c\/strong\u003e This gasket measures 0.39 x 0.39 x 0.39 inches, a compact size consistent with a water jacket cover seal on a 4 cylinder outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0133 gasket weigh?\u003c\/strong\u003e The Sierra 18-0133 water jacket gasket weighs 0.12 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy the 18-0133 gasket in a multi-pack?\u003c\/strong\u003e The base part 18-0133 is sold individually (priced per piece); for a package of 5, order part number 18-0133-9 instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould the water jacket gasket be reused after removing the cover?\u003c\/strong\u003e No, a water jacket gasket like the 18-0133 should be replaced with a new one any time the water jacket cover is removed, since a reused gasket is prone to leaking.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat happens if the water jacket gasket fails?\u003c\/strong\u003e A failed water jacket gasket, such as an old or damaged 18-0133, can allow coolant to leak from the water jacket cover joint, leading to reduced cooling efficiency or overheating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra 18-0133 cross-reference to more than one OEM number?\u003c\/strong\u003e Yes, 18-0133 corresponds to two OEM numbers, 27-73665 and 27-52892, both of which it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0133 gasket genuine Sierra or aftermarket equivalent?\u003c\/strong\u003e The 18-0133 is a Sierra brand part manufactured as a direct-fit replacement for the listed OEM numbers on 4 cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part 18-0133?\u003c\/strong\u003e An order of 18-0133 includes one water jacket gasket; if the package quantity of 5 is needed, request part 18-0133-9 instead.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988023193819,"sku":"SIE-18-0133","price":5.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0133_lg__43565.1558119003.500.750.jpg?v=1785189212"},{"product_id":"evinrude-johnson-air-box-gasket-mpn-118-0140-outboard-gasket","title":"Sierra Air Box Gasket 18-0140 for Evinrude Outboard Engines","description":"\u003cp\u003eThe Sierra 18-0140 Air Box Gasket is a replacement seal designed for Evinrude outboard engines, sold as part of Sierra's outboard gasket set lineup. It is installed between the air box housing and the engine intake to maintain a proper seal, preventing unmetered air, dirt, and moisture from entering the intake tract and disrupting the air\/fuel mixture. A worn, cracked, or compressed air box gasket can cause a rough idle, hesitation, or an inconsistent fuel mixture, so replacing it during routine maintenance or when servicing the air box helps restore a proper seal.\u003c\/p\u003e\u003cp\u003eThis gasket is lightweight at 0.03 pounds and is identified by UPC 030999751102 and Sierra part number 18-0140. It is intended as a direct-fit replacement for the factory air box gasket on applicable Evinrude outboard engines, making it a straightforward maintenance item to keep on hand for outboard servicing.\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 18-0140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Air Box Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Evinrude Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999751102\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits applicable Evinrude outboard engines. Confirm compatibility with your engine's air box before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0140 air box gasket fit?\u003c\/strong\u003e The 18-0140 is designed for Evinrude outboard engines and is meant to be installed as a seal between the air box housing and the engine intake.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0140 a genuine Sierra part number?\u003c\/strong\u003e Yes, 18-0140 is the Sierra manufacturer part number for this air box gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this gasket weigh?\u003c\/strong\u003e The 18-0140 air box gasket weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The UPC for the Sierra 18-0140 air box gasket is 030999751102.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the air box gasket installed?\u003c\/strong\u003e It seals the joint between the air box housing and the intake on the outboard engine, preventing unmetered air, dirt, and moisture from entering the intake.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a failing air box gasket?\u003c\/strong\u003e A cracked or compressed air box gasket like the 18-0140 can allow unmetered air into the intake, which may cause a rough idle, hesitation, or an inconsistent air\/fuel mixture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre OEM cross-reference numbers available for this gasket?\u003c\/strong\u003e No OEM cross-reference numbers are listed for the Sierra 18-0140 air box gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gasket sold individually or as part of a set?\u003c\/strong\u003e The 18-0140 is offered as an individual air box gasket within Sierra's outboard gasket set category.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the air box gasket?\u003c\/strong\u003e Replace the 18-0140 air box gasket any time the gasket is visibly worn, cracked, or compressed, or when servicing the air box on an Evinrude outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket require any special tools to install?\u003c\/strong\u003e The 18-0140 is a standard flat gasket that is installed by removing the air box housing and fitting the new gasket in place of the old one.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988025323739,"sku":"SIE-18-0140","price":2.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0140_lg__78072.1558119612.500.750.jpg?v=1785329149"},{"product_id":"sierra-shieldsflex-ii-marine-water-exhaust-hose-with-wire-available-in-5-8-to-3-id","title":"Sierra Shieldsflex II Marine Water\/Exhaust Hose - Available in 5\/8\" to 3\" ID","description":"\u003cp\u003eSierra Shieldsflex II is a wire-reinforced marine water and exhaust hose built for runs where bends or long lengths are required. It has a black synthetic rubber tube and cover reinforced with a wire helix embedded between plies of heavy-duty synthetic cord, keeping the hose round and kink-resistant through tight routing. It is used for engine intake, bilge pump intake and discharge, scupper lines, wet exhaust connections, toilet intake and discharge, and holding tank vent or pump-out lines aboard boats. The hose resists exhaust fumes, ozone, mild chemicals, antifreeze, and saltwater, and its cover is abrasion and odor permeation resistant. It handles a continuous temperature range of -20 F to +200 F, with intermittent spikes to +250 F, and meets SAE J2006 Type R2 standards with double the ozone resistance the standard requires. Working pressure is rated at 75 PSI with a 220 PSI burst pressure, and the bend radius is 5 times the hose's inside diameter, letting it curve through tight engine compartments and bilges without collapsing. This line is available in inside diameters from 5\/8 inch up to 3 inches, in lengths from 6 1\/4 feet up to 25 feet on a carton reel for the 1 1\/4 inch size, so it covers everything from short exhaust jumpers to long intake or discharge runs.\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 16-250\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Marine water\/exhaust hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic rubber tube and cover reinforced with wire helix between plies of HD synthetic cord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePly:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID) Options:\u003c\/strong\u003e 5\/8 inch, 3\/4 inch, 1 inch, 1 1\/4 inch, 2 inch, 3 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD) by Size:\u003c\/strong\u003e 5\/8 inch ID: 61\/64 inch OD; 3\/4 inch ID: 1 1\/16 inch OD; 1 inch ID: 1 5\/16 inch OD; 1 1\/4 inch ID: 1 19\/32 inch OD; 2 inch ID: 2 13\/32 inch OD; 3 inch ID: 3.44 inches OD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Options:\u003c\/strong\u003e 6 1\/4 feet, 10 feet, 12 1\/2 feet, 25 feet (carton)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius:\u003c\/strong\u003e 5 x inside diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e 220 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 75 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20 F to +200 F continuous, +250 F intermittent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e Meets SAE J2006 Type R2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Uses:\u003c\/strong\u003e Engine intake, bilge pump intake\/discharge, scupper lines, wet exhaust connections, toilet intake\/discharge, holding tank vent\/pump-out\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose your inside diameter first to match the fitting, thru-hull, or exhaust outlet the hose connects to, then choose the length needed for the full run, adding extra where the hose will bend. The 1 1\/4 inch size is offered in both a 10 foot length and a 25 foot carton for longer runs; other sizes are offered in a single length as listed. Measure your existing hose or connection before ordering to confirm the correct inside diameter.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra Shieldsflex II hose come in?\u003c\/strong\u003e The Shieldsflex II line spans inside diameters from 5\/8 inch up to 3 inches, so match it to the fitting or thru-hull it will connect to before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which length to order?\u003c\/strong\u003e Lengths run from 6 1\/4 feet up to 25 feet on a carton reel for the 1 1\/4 inch size. Measure the full run of the intake, exhaust, or discharge line and add extra where the hose will bend, since Shieldsflex II is designed for runs that require bends or long lengths.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose used for?\u003c\/strong\u003e Sierra Shieldsflex II is used for engine intake, bilge pump intake and discharge, scupper lines, wet exhaust connections, toilet intake and discharge, and holding tank vent or pump-out lines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the hose reinforced or will it collapse on tight bends?\u003c\/strong\u003e A wire helix is embedded between plies of heavy-duty synthetic cord in Shieldsflex II, which keeps the hose round and kink-resistant even when routed through tight bends with a bend radius of 5 times its inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperatures can it handle?\u003c\/strong\u003e 20 F to +200 F continuously, with intermittent spikes up to +250 F, which is the rated range for the Sierra Shieldsflex II hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is the hose rated for?\u003c\/strong\u003e 220 PSI burst pressure and 75 PSI working pressure are the ratings for this Shieldsflex II hose line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the hose made of?\u003c\/strong\u003e A black synthetic rubber tube and cover, resistant to exhaust fumes, ozone, mild chemicals, antifreeze, and saltwater, makes up the Sierra Shieldsflex II hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose meet any industry standards?\u003c\/strong\u003e Yes, Shieldsflex II meets SAE J2006 Type R2 standards, with double the ozone resistance that standard requires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between the 6 1\/4 foot and 10 foot options?\u003c\/strong\u003e They are the same hose construction cut to different lengths; choose the length based on the total run you need to cover, since Sierra offers Shieldsflex II in multiple lengths per size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used for exhaust runs with bends?\u003c\/strong\u003e Yes, Shieldsflex II is specifically built for wet exhaust connections where bends or long lengths are required, unlike a rigid exhaust hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 3 inch size available in a long length like the smaller sizes?\u003c\/strong\u003e The 3 inch Shieldsflex II hose is offered in a 6 1\/4 foot length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the hose?\u003c\/strong\u003e Sierra Shieldsflex II hose has a black synthetic rubber tube and cover.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"3\/4\" \/ 6 1\/4'","offer_id":48988025749723,"sku":"SIE-16-250-0341","price":42.12,"currency_code":"USD","in_stock":true},{"title":"5\/8\" \/ 10'","offer_id":48988025782491,"sku":"SIE-16-250-0583","price":63.14,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 6 1\/4'","offer_id":48988025815259,"sku":"SIE-16-250-1001","price":45.77,"currency_code":"USD","in_stock":true},{"title":"1 1\/4\" \/ 10'","offer_id":48988025848027,"sku":"SIE-16-250-1143","price":74.84,"currency_code":"USD","in_stock":true},{"title":"1 1\/4\" \/ 25' Carton","offer_id":48988025880795,"sku":"SIE-16-250-1145","price":181.21,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 12 1\/2'","offer_id":48988025913563,"sku":"SIE-16-250-2004","price":131.3,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 6 1\/4'","offer_id":48988025946331,"sku":"SIE-116-250-3001","price":111.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ShieldsFlex__82759.1784651535.500.750.jpg?v=1785188900"},{"product_id":"bypass-gasket-for-chrysler-force-outboard-100-140-hp-replaces-oem-27-f85762-2-pack-mpn-118-0141-9","title":"Sierra Bypass Gasket 18-0141-9, 2-Pack, Force Outboard Powerhead Gasket","description":"\u003cp\u003eThe Sierra 18-0141-9 bypass gasket is a powerhead gasket engineered for Force outboard engines, sold as a 2-pack so a spare is always on hand for the next service interval. Bypass gaskets like this one seal the bypass passage on the powerhead, helping maintain proper sealing between mating surfaces during engine operation. Each pack is lightweight at just 0.01 pounds, reflecting its role as a precision-cut sealing component rather than a bulky assembly. Ordering the correct Sierra part number ensures the gasket matches the dimensions and bolt pattern of the original equipment it is designed to seal, which is important for preventing leaks and maintaining compression or fluid pathways within the powerhead. Because it ships two to a pack, boat owners and marine technicians can complete a full gasket replacement or keep a spare on the shelf without ordering twice. This gasket is cataloged under Sierra's Force Outboard Powerhead Gaskets line, making it easy to identify alongside other powerhead sealing components for the same 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 18-0141-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Force Outboard Powerhead Gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282161408\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a Sierra 18-0141-9 pack?\u003c\/strong\u003e Two bypass gaskets ship in every pack of Sierra part number 18-0141-9, so a spare is included with each order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0141-9 used for?\u003c\/strong\u003e It is a bypass gasket for the powerhead of Force outboard engines, used to seal the bypass passage during engine operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0141-9 bypass gasket weigh?\u003c\/strong\u003e 0.01 pounds per pack, reflecting its size as a thin, precision-cut sealing gasket rather than a bulky part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does this gasket fall under?\u003c\/strong\u003e Sierra catalogs the 18-0141-9 under its Force Outboard Powerhead Gaskets line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0141-9 sold individually or in a pack?\u003c\/strong\u003e It is sold per 2-pack, not as a single gasket, under Sierra part number 18-0141-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0141-9 gasket?\u003c\/strong\u003e 808282161408 is the UPC associated with the Sierra 18-0141-9 bypass gasket 2-pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0141-9 a genuine Sierra Marine part number?\u003c\/strong\u003e Yes, 18-0141-9 is the Sierra part number for this bypass gasket, identifying it within Sierra's Force outboard powerhead gasket lineup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace both gaskets at once when servicing the powerhead?\u003c\/strong\u003e Since the Sierra 18-0141-9 ships as a 2-pack, both gaskets are available in a single order, making it convenient to replace them together during a service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0141-9 include installation hardware?\u003c\/strong\u003e The pack contains the bypass gaskets themselves (two per pack); no additional hardware is specified for this part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy order a spare Sierra 18-0141-9 gasket?\u003c\/strong\u003e Because bypass gaskets are used during powerhead service and can be damaged during removal, having the second gasket from the 2-pack on hand avoids a delay in completing the job.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988026732763,"sku":"SIE-18-0141-9","price":1.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0141_lg__13581.1558119741.500.750.jpg?v=1785329152"},{"product_id":"sierra-silverado-4000-outboard-marine-fuel-line-available-in-5-16-and-3-8-id-10-to-50-lengths","title":"Sierra Silverado 4000 Outboard Fuel Line - Available in 5\/16\" and 3\/8\" ID, 10' to 50' Lengths","description":"\u003cp\u003eThe Sierra Silverado 4000 Outboard Fuel Line is a marine-grade fuel hose built for above-deck primer bulb fuel line applications on outboard-powered boats. It meets SAE J1527 Type B1-15 and is EPA and CARB compliant, and it is resistant to ethanol-blended fuels, making it a safe choice for modern pump-blend gasoline. Construction uses a THV barrier layer to block fuel permeation, a Nitrile jacket, polyester reinforcement for strength, and a weather- and UV-resistant CPE cover. The gray cover is designed to keep the hose cooler and helps prevent vapor lock in the fuel line. This hose is not fire retardant, so it is intended for above-deck use rather than below-deck engine compartment routing.\u003c\/p\u003e\u003cp\u003eThe Silverado 4000 line is offered in two inside diameters, 5\/16 inch and 3\/8 inch, so it covers the fuel line sizing used across a wide range of outboard fuel systems. Each diameter is available in multiple put-up lengths, from a 10 foot polypac coil for smaller repairs to 25 foot and 50 foot cartons for larger installations, rigging shops, and multi-boat fleets.\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 16-337\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Outboard fuel line \/ marine fuel hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester reinforcement, Nitrile jacket, THV barrier layer, CPE cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e Meets SAE J1527 Type B1-15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e EPA and CARB compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Compatibility:\u003c\/strong\u003e Resistant to ethanol-blended fuels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Above-deck primer bulb fuel line applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Retardant:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Inside Diameters:\u003c\/strong\u003e 5\/16 inch, 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter - 5\/16 Inch Size:\u003c\/strong\u003e 5\/16 inch (7.9 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter - 5\/16 Inch Size:\u003c\/strong\u003e 1\/2 inch (12.75 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter - 3\/8 Inch Size:\u003c\/strong\u003e 3\/8 inch (9.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter - 3\/8 Inch Size:\u003c\/strong\u003e 35\/64 inch (13.72 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Lengths:\u003c\/strong\u003e 10 feet, 25 feet, 50 feet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eFirst pick the inside diameter that matches your boat's existing fuel line or primer bulb fitting, 5\/16 inch or 3\/8 inch. Then choose the length you need: the 10 foot option ships as a coiled polypac, ideal for a single repair or short run, while the 25 foot and 50 foot lengths ship as reel-off cartons suited to full rigging jobs or stocking multiple repairs. Every size and length uses the same Silverado 4000 construction, so performance and compliance are identical across the line.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra Silverado 4000 outboard fuel line come in?\u003c\/strong\u003e This fuel line is available in two inside diameters, 5\/16 inch and 3\/8 inch, covering the fuel line sizing used on most outboard fuel systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat lengths can I order?\u003c\/strong\u003e The Silverado 4000 line ships in 10 foot, 25 foot, and 50 foot lengths, so you can buy a short coil for a single repair or a longer carton for a full rigging job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this fuel line safe for ethanol-blended gasoline?\u003c\/strong\u003e Yes, the Silverado 4000 hose is resistant to ethanol-blended fuels and includes a THV barrier layer to prevent fuel permeation through the hose wall.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat standards does the Sierra Silverado 4000 fuel line meet?\u003c\/strong\u003e It meets SAE J1527 Type B1-15 and is EPA and CARB compliant, the standards that apply to marine fuel line hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Silverado 4000 fuel line fire retardant?\u003c\/strong\u003e No, this hose is not fire retardant. It is designed for above-deck primer bulb fuel line applications rather than fire-rated engine compartment routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Silverado 4000 fuel line made of?\u003c\/strong\u003e Construction includes a THV barrier layer, a Nitrile jacket, polyester reinforcement for strength, and a weather- and UV-resistant CPE cover over a gray outer jacket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy is the hose gray instead of black?\u003c\/strong\u003e The gray CPE cover on the Silverado 4000 fuel line is designed to keep the hose cooler than a black hose and helps prevent vapor lock in the fuel system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I order the 10 foot polypac or a 25\/50 foot carton?\u003c\/strong\u003e The 10 foot length ships as a coiled polypac and suits a single hose repair, while the 25 foot and 50 foot lengths ship as reel-off cartons for full rigging jobs or stocking several repairs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know whether I need 5\/16 inch or 3\/8 inch fuel line?\u003c\/strong\u003e Match the inside diameter to your boat's existing fuel line or primer bulb fitting; the Silverado 4000 line is offered in both 5\/16 inch and 3\/8 inch inside diameter to fit either setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this fuel line come with fittings or clamps?\u003c\/strong\u003e No, the Silverado 4000 outboard fuel line is sold as hose only, by length, and does not include fittings or clamps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, this is a genuine Sierra Silverado 4000 outboard fuel line, part number stem 16-337, not a generic aftermarket substitute.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"3\/8\" \/ 10' Polypac","offer_id":48988026929371,"sku":"SIE-16-337-0383","price":37.49,"currency_code":"USD","in_stock":true},{"title":"3\/8\" \/ 25' Carton","offer_id":48988026962139,"sku":"SIE-16-337-0385","price":141.7,"currency_code":"USD","in_stock":true},{"title":"3\/8\" \/ 50' Carton","offer_id":48988026994907,"sku":"SIE-16-337-0386","price":169.81,"currency_code":"USD","in_stock":true},{"title":"5\/16\" \/ 10' Polypac","offer_id":48988027027675,"sku":"SIE-16-337-0563","price":36.17,"currency_code":"USD","in_stock":true},{"title":"5\/16\" \/ 25' Carton","offer_id":48988027060443,"sku":"SIE-16-337-0565","price":140.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/61tZegAJ3HL_2a21bfd4-1452-480c-ad48-0e4d1df108ea.jpg?v=1784385668"},{"product_id":"sierra-18-0164-9-thermostat-housing-gasket-replaces-omc-311069-gm-3789161-4-6-cyl-marine-engines-pack-of-2","title":"Sierra Thermostat Housing Gasket 18-0164-9, Replaces Yamaha YSC-13080-00-0C, Pack of 2","description":"\u003cp\u003eThe Sierra 18-0164-9 Thermostat Housing Gasket seals the thermostat housing on Yamaha sterndrive engines, preventing coolant leaks and maintaining proper cooling system pressure. This gasket is manufactured to meet or exceed original equipment quality, giving it a reliable, leak-free seal at the thermostat housing mating surface. It is round in shape and sold in a package of 2, so you have a spare on hand or enough to service two units in one order.\u003c\/p\u003e\u003cp\u003eInstalling a fresh thermostat housing gasket during any thermostat service, cooling system inspection, or overheating diagnosis helps ensure the housing seats correctly and holds pressure. Because it is a direct cross-reference for the Yamaha YSC-13080-00-0C and GM 3789161 gaskets, it drops into place wherever those original parts are called for, 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 18-0164-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282161453\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e YSC-13080-00-0C, GM 3789161\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYamaha sterndrive engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYSC-13080-00-0C\u003c\/li\u003e\n\u003cli\u003eGM 3789161\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0164-9 gasket fit?\u003c\/strong\u003e The Sierra 18-0164-9 is a thermostat housing gasket designed for Yamaha sterndrive engines, directly replacing the Yamaha YSC-13080-00-0C thermostat gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0164-9 the same as the Yamaha YSC-13080-00-0C gasket?\u003c\/strong\u003e Yes, part 18-0164-9 is a direct cross-reference for the Yamaha YSC-13080-00-0C thermostat housing gasket, so it installs in the same location without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket also cross-reference to a GM part number?\u003c\/strong\u003e Yes, the 18-0164-9 thermostat housing gasket also replaces GM 3789161.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a package of 18-0164-9?\u003c\/strong\u003e Each package of the 18-0164-9 thermostat housing gasket contains 2 gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the 18-0164-9 thermostat housing gasket?\u003c\/strong\u003e The 18-0164-9 is a round gasket, matching the round mating surface of the thermostat housing it seals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0164-9 gasket weigh?\u003c\/strong\u003e The Sierra 18-0164-9 thermostat housing gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0164-9 gasket genuine OEM or aftermarket?\u003c\/strong\u003e The 18-0164-9 is a Sierra-manufactured aftermarket gasket built to meet or exceed the quality of the original Yamaha YSC-13080-00-0C and GM 3789161 gaskets it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the thermostat housing gasket?\u003c\/strong\u003e Replace the 18-0164-9 thermostat housing gasket any time the thermostat housing is removed for service, or if coolant leaks are found at the housing seam.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0164-9 gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0164-9 thermostat housing gasket is 808282161453.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I reuse the old gasket instead of buying the 18-0164-9?\u003c\/strong\u003e A new 18-0164-9 gasket is recommended rather than reusing the old one, since gaskets compress and can leak once removed from the thermostat housing.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988027093211,"sku":"SIE-18-0164-9","price":3.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0164_lg__15556.1558117879.500.750.jpg?v=1785188014"},{"product_id":"sierra-shields-series-368-low-permeation-marine-fuel-feed-hose-available-in-5-16-and-3-8-id-10-and-25-lengths","title":"Sierra Shields Low Permeation Marine Fuel Feed Hose - Available in 5\/16\" and 3\/8\" ID, 10' Polypac or 25' Carton","description":"\u003cp\u003eSierra's Shields Series 368 Low Permeation Marine Fuel Feed Hose is built for boaters who need a fuel line that meets today's strict emissions standards without sacrificing durability. The hose uses a plastic barrier veneer bonded to an NBR outer layer tube, which blocks fuel vapor permeation far more effectively than standard rubber fuel hose. A polyester reinforcement layer gives the hose the strength to handle engine bay heat, fuel pressure, and constant exposure to weather and UV light without cracking or going soft.\u003c\/p\u003e\u003cp\u003eThis hose is designed primarily for fuel feed lines, and it is rated for gasoline (including blends up to 85% ethanol), diesel, and all bio-diesel blends, making it a safe choice across gas and diesel-powered boats. It meets USCG Type A1-15 requirements for pleasure boats, along with SAE J1527 Type A1-15, ISO 7840 Type A1, and NMMA\/CE Type accepted standards, so it satisfies both regulatory and insurance requirements for fuel system work. Operating temperature range is -20 degrees F to 212 degrees F, covering everything from cold winter storage to hot engine compartments.\u003c\/p\u003e\u003cp\u003eThis line is sold in two inner diameters, 5\/16\" and 3\/8\", so it fits a wide range of fuel feed line applications from smaller outboard fuel systems to larger stern drive and inboard feed runs. Each size is available in a 10 foot Polypac or a 25 foot reel-off carton, so you can buy just enough for a single hose replacement or stock up for larger jobs and future repairs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 16-368\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Low Permeation Marine Fuel Feed Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Inner Diameters:\u003c\/strong\u003e 5\/16\" (7.9 mm), 3\/8\" (9.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (5\/16\" ID):\u003c\/strong\u003e 5\/8\" (15.49 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (3\/8\" ID):\u003c\/strong\u003e 11\/16\" (17.27 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Lengths:\u003c\/strong\u003e 10 foot Polypac, 25 foot reel-off carton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure:\u003c\/strong\u003e 100 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20 degrees F to 212 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester reinforced hose with NBR outer layer tube and plastic barrier veneer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Compatibility:\u003c\/strong\u003e Gasoline (up to 85% ethanol blends), diesel, all bio-diesel blends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e USCG Type A1-15, SAE J1527 Type A1-15, ISO 7840 Type A1, NMMA\/CE Type accepted\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose your inner diameter first (5\/16\" or 3\/8\") to match the fuel line you are replacing or the fitting size on your fuel system components, then choose your length. The 10 foot Polypac is suited to single hose repairs, while the 25 foot reel-off carton is a better value for longer runs or when replacing multiple fuel lines at once.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra Shields 16-368 fuel feed hose come in?\u003c\/strong\u003e The Sierra Shields 16-368 low permeation fuel feed hose is available in 5\/16\" inner diameter and 3\/8\" inner diameter, each offered in a 10 foot Polypac or a 25 foot reel-off carton.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose rated for ethanol fuel?\u003c\/strong\u003e Yes, the 16-368 fuel feed hose is rated for gasoline blends up to 85% ethanol, along with diesel and all bio-diesel blends.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 5\/16\" and 3\/8\" versions?\u003c\/strong\u003e The two sizes differ in inner and outer diameter: the 5\/16\" hose has a 5\/8\" outside diameter, while the 3\/8\" hose has an 11\/16\" outside diameter. Pick the size that matches the diameter of the fuel line you are replacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum working pressure of this hose?\u003c\/strong\u003e The Sierra Shields 16-368 fuel feed hose has a maximum working pressure of 100 psi.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range can this hose handle?\u003c\/strong\u003e This hose is rated from -20 degrees F to 212 degrees F, so it holds up in both cold winter storage and hot engine compartments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose meet USCG requirements for pleasure boats?\u003c\/strong\u003e Yes, the 16-368 hose meets USCG Type A1-15 requirements for pleasure boats, as well as SAE J1527 Type A1-15, ISO 7840 Type A1, and NMMA\/CE Type accepted standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose made of?\u003c\/strong\u003e It is a polyester reinforced hose with an NBR outer layer tube and a plastic barrier veneer that reduces fuel vapor permeation compared to standard rubber fuel hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I buy the 10 foot Polypac or the 25 foot carton?\u003c\/strong\u003e The 10 foot Polypac is sized for a single fuel hose repair, while the 25 foot reel-off carton is a better choice for longer fuel line runs or if you plan to replace more than one line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used with diesel fuel?\u003c\/strong\u003e Yes, the Sierra Shields 16-368 fuel feed hose is rated for diesel and all bio-diesel blends in addition to gasoline.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose UV and weather resistant?\u003c\/strong\u003e Yes, the low permeation construction of the 16-368 hose is weather and UV resistant, in addition to meeting EPA and CARB very low permeation requirements.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"3\/8\" \/ 10' Polypac","offer_id":48988027191515,"sku":"SIE-16-368-0383","price":35.73,"currency_code":"USD","in_stock":true},{"title":"3\/8\" \/ 25' Carton","offer_id":48988027224283,"sku":"SIE-16-368-0385","price":68.58,"currency_code":"USD","in_stock":true},{"title":"5\/16\" \/ 10' Polypac","offer_id":48988027257051,"sku":"SIE-16-368-0563","price":35.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/61-DQ2P5MjL.jpg?v=1784385716"},{"product_id":"sierra-18-0172-oil-seal-for-mercury-mariner-outboards-replaces-oem-26-97530","title":"Sierra Oil Seal 18-0172, Replaces Mercruiser 26-97530, 0.845 Inch Shaft","description":"\u003cp\u003eThe Sierra 18-0172 Oil Seal is a round oil seal engineered as a direct replacement for the Mercruiser 26-97530. It is designed to maintain a reliable barrier against oil and water intrusion at the shaft, keeping lubricants contained and contaminants out for dependable operation. Sierra manufactures this seal to meet or exceed the specifications of the original equipment part it replaces, so it installs and performs the same way as the part it is replacing. The seal features a round profile with a white finish and is sized precisely to a 0.845 inch shaft diameter, 1.500 inch outer diameter, and 0.315 inch width, ensuring a proper fit without modification. This is a single-unit component, sold individually, making it a straightforward swap when servicing a worn or leaking seal. Because it carries the Sierra part number 18-0172 and matches the Mercruiser 26-97530 cross-reference, it is easy to identify and order the correct replacement without guesswork. Marine technicians and boat owners performing routine maintenance or repair on applicable Mercruiser equipment can rely on this seal to restore proper sealing function at the shaft.\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 18-0172\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Size:\u003c\/strong\u003e 0.845 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 1.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.315 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\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 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999751300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eInterchangeable with Mercruiser 26-97530.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e26-97530\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0172 Oil Seal replace?\u003c\/strong\u003e The Sierra 18-0172 Oil Seal is interchangeable with Mercruiser 26-97530, so it can be ordered as a direct replacement for that part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the shaft size on this oil seal?\u003c\/strong\u003e The shaft size is 0.845 inches on the Sierra 18-0172 Oil Seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the outer diameter and width of the 18-0172 seal?\u003c\/strong\u003e The outer diameter is 1.500 inches and the width is 0.315 inches on the Sierra 18-0172 Oil Seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0172 a genuine Mercruiser part or an aftermarket equivalent?\u003c\/strong\u003e It is a Sierra-manufactured seal, not a Mercruiser-branded part, but Sierra makes it to meet or exceed the specifications of the Mercruiser 26-97530 it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and color is this oil seal?\u003c\/strong\u003e The Sierra 18-0172 Oil Seal has a round shape and a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seals are included when I order the 18-0172?\u003c\/strong\u003e One unit is included per order of the Sierra 18-0172 Oil Seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0172 Oil Seal weigh?\u003c\/strong\u003e It weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-0172 seal fit in place of a worn factory seal without modification?\u003c\/strong\u003e Yes, because it is dimensionally matched to the Mercruiser 26-97530 it replaces, the Sierra 18-0172 installs in place of the original seal without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0172 Oil Seal?\u003c\/strong\u003e The UPC is 030999751300 for the Sierra 18-0172 Oil Seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra warranty the 18-0172 Oil Seal?\u003c\/strong\u003e Yes, the Sierra 18-0172 Oil Seal is covered under Sierra's limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988027322587,"sku":"SIE-18-0172","price":13.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0172_lg__91673.1558118066.500.750.jpg?v=1785189080"},{"product_id":"sierra-18-2849-exhaust-elbow-gasket-for-mercruiser-center-rise-manifolds-available-single-or-pack-of-2","title":"Sierra Exhaust Elbow Gasket 18-2849 for Mercruiser Exhaust Manifolds - Available Single or Pack of 2","description":"\u003cp\u003eThe Sierra 18-2849 Exhaust Elbow Gasket is an open-style gasket that seals the connection between the exhaust manifold and the exhaust manifold elbow on applicable Mercruiser stern drive installations. It is designed to fit the 18-1957-2 exhaust manifold (used on GM Big Block V8 454 cu. In. Applications, Models 330, 340 \u0026amp; 7.4L) and mates with the 18-1970-2 (3 inch hose), 18-1976-2 (4 inch hose, 7 degree down angle), and 18-1974-1 (3 inch hose, 15 degree down angle) manifold elbows. The gasket is constructed from a stainless steel infused graphite material engineered for superior compressibility, giving it a reliable seal against exhaust gas and cooling water leakage at the manifold-to-elbow joint. Its round, open-flow design matches the factory port profile so exhaust and water flow are not restricted.\u003c\/p\u003e\u003cp\u003eThis gasket is a routine maintenance and repair item, typically replaced any time the exhaust elbow is removed for service, inspection, or corrosion, or as part of a preventive maintenance schedule to avoid gasket failure and coolant intrusion. It is available as a single gasket or in a package of 2, so owners replacing elbows on both sides of the engine, or keeping a spare on hand, can order the quantity that matches the job.\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 18-2849\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-818832\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Manifold:\u003c\/strong\u003e 18-1957-2 (GM Big Block V8 454 cu. In., Models 330, 340 \u0026amp; 7.4L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Elbows:\u003c\/strong\u003e 18-1970-2 (3 inch hose), 18-1976-2 (4 inch hose, 7 degree down angle), 18-1974-1 (3 inch hose, 15 degree down angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel infused graphite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Options:\u003c\/strong\u003e Single or pack of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis gasket is sold two ways: as a single gasket, or as a package of 2. Choose the single option if you are replacing one elbow gasket, or the pack of 2 if you are servicing elbows on both sides of the engine or want a spare on hand. Both options are the identical open-style gasket fitting the 18-1957-2 manifold and its matching 18-1970-2, 18-1976-2, and 18-1974-1 elbows; only the quantity in the package differs.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2849 exhaust elbow gasket fit?\u003c\/strong\u003e The 18-2849 gasket fits the 18-1957-2 exhaust manifold and seals it to the 18-1970-2, 18-1976-2, or 18-1974-1 manifold elbows.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gasket sold as a single piece or in a pack?\u003c\/strong\u003e The Sierra 18-2849 gasket is available either as a single gasket or as a package of 2, so you can order the exact quantity needed for a one-side or two-side elbow replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM cross reference number for this gasket?\u003c\/strong\u003e The 18-2849 gasket cross references to Mercruiser\/Mercury number 27-818832.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the exhaust elbow gasket made from?\u003c\/strong\u003e It is made from a stainless steel infused graphite material, chosen for its compressibility and ability to hold a reliable seal at the exhaust elbow joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an open or blocked style gasket?\u003c\/strong\u003e This is the open-style elbow gasket (18-2849), which matches manifolds using the open exhaust port configuration, as opposed to a blocked-style gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich manifold elbows use this gasket?\u003c\/strong\u003e The 18-2849 gasket is used with the 18-1970-2 elbow (3 inch hose), the 18-1976-2 elbow (4 inch hose, 7 degree down angle), and the 18-1974-1 elbow (3 inch hose, 15 degree down angle).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the single gasket or the pack of 2?\u003c\/strong\u003e If you are only replacing one exhaust elbow, order the single 18-2849 gasket; if you are servicing elbows on both sides of the engine or want a spare in reserve, order the pack of 2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the gasket and what shape is it?\u003c\/strong\u003e The Sierra exhaust elbow gasket is black and round in shape, matching the factory open exhaust port profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket work with the 18-1957-2 manifold?\u003c\/strong\u003e Yes, the 18-2849 gasket is designed to fit the 18-1957-2 exhaust manifold, which is used on GM Big Block V8 454 cu. In. Applications, Models 330, 340 and 7.4L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any other gaskets or hardware with this part?\u003c\/strong\u003e The 18-2849 elbow gasket seals the manifold-to-elbow joint only; the corresponding manifold gasket and mounting hardware for the 18-1957-2 manifold are separate parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2849 gasket genuine Sierra or aftermarket?\u003c\/strong\u003e It is a Sierra-branded exhaust elbow gasket, sold under Sierra part number 18-2849, and is backed by Sierra.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Single","offer_id":48988029059291,"sku":"SIE-18-2849-1","price":10.8,"currency_code":"USD","in_stock":false},{"title":"Pack of 2","offer_id":48988029092059,"sku":"SIE-18-2849-9-1","price":21.57,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2849-1__33114.1722491711.500.750.jpg?v=1785188455"},{"product_id":"sierra-18-0182-9-thermostat-gasket-replaces-evinrude-johnson-337068-pack-of-2-for-evinrude-johnson-outboards","title":"Sierra 18-0182-9 Thermostat Gasket, Pack of 2 - Fits Johnson\/Evinrude 200-235 HP Outboards","description":"\u003cp\u003eThe Sierra 18-0182-9 Thermostat Gasket is a replacement gasket for the thermostat housing on select Johnson\/Evinrude outboard motors, sold as a pack of 2 so you have a spare on hand or can service both cylinder banks in one job. The gasket seals the thermostat housing to the cylinder head, maintaining proper cooling system pressure and preventing water leakage around the thermostat during operation. It is round in shape with a multi-colored appearance and is built to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003eThis gasket is designed for Johnson\/Evinrude outboards rated at 200 HP (1977-83) and 235 HP (1978-85). It is also cross-referenced to several other aftermarket and OEM part numbers, making it a straightforward swap for boat owners and marine technicians sourcing a replacement gasket by an equivalent part number. Each pack ships as a lightweight, low-cost maintenance item intended to be replaced any time the thermostat housing is removed or serviced, ensuring a proper seal and preventing coolant leaks after reassembly.\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 18-0182-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Multi-colored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282161484\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e GLM 30610, Evinrude\/Johnson 310058, Mallory 9-60002, Mercury 27-62386, 27-62386001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 200 HP outboards, 1977-83\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 235 HP outboards, 1978-85\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 30610\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 310058\u003c\/li\u003e\n\u003cli\u003eMallory 9-60002\u003c\/li\u003e\n\u003cli\u003eMercury 27-62386\u003c\/li\u003e\n\u003cli\u003eMercury 27-62386001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0182-9 thermostat gasket fit?\u003c\/strong\u003e It fits Johnson\/Evinrude outboards rated at 200 HP built from 1977-83 and 235 HP built from 1978-85.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets are in one package?\u003c\/strong\u003e The Sierra 18-0182-9 comes as a pack of 2 thermostat gaskets, giving you a spare or enough for a two-bank service job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0182-9 interchangeable with other brands?\u003c\/strong\u003e Yes, it cross-references to GLM 30610, Evinrude\/Johnson 310058, Mallory 9-60002, and Mercury 27-62386 \/ 27-62386001, so it can be ordered under any of those numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and color is this gasket?\u003c\/strong\u003e The 18-0182-9 gasket is round in shape with a multi-colored appearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0182-9 pack weigh?\u003c\/strong\u003e The pack weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-0182-9 is an aftermarket thermostat gasket built to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0182-9 thermostat gasket?\u003c\/strong\u003e The UPC is 808282161484.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0182-9 work on a 225 HP Johnson\/Evinrude outboard?\u003c\/strong\u003e No, the fitment for the 18-0182-9 covers 200 HP (1977-83) and 235 HP (1978-85) models; other horsepower and year ranges use a different Sierra thermostat gasket part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with this purchase?\u003c\/strong\u003e Each order includes 2 Sierra 18-0182-9 thermostat gaskets and nothing else.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Mercury 27-62386 gasket be used in place of the Sierra 18-0182-9?\u003c\/strong\u003e Yes, Mercury 27-62386 (and 27-62386001) is one of the cross-reference numbers for the Sierra 18-0182-9, so either number will get you the same gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988029649115,"sku":"SIE-18-0182-9","price":3.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-0182-9__25311.1722487561.500.750.jpg?v=1785188852"},{"product_id":"sierra-exhaust-hose-t-bolt-band-clamp-available-in-2-to-6-id-series-200-250","title":"Sierra T-Bolt Band Clamp for Marine Exhaust Hose - Available in 2\" and 6\" ID","description":"\u003cp\u003eThis Sierra T-Bolt Band Clamp is a heavy-duty stainless steel clamp built to secure marine exhaust hose in below-the-waterline applications. It is designed to fit Shields Series 200 and 250 exhaust hose, with the larger size also suited to Series 202 silicone hose. The band is 316 stainless steel,.025 inch thick and.75 inch wide, chosen for its resistance to corrosion in wet, salt-exposed engine and exhaust environments. The bolt, nut, and trunion are 18-8 (304) stainless steel, and each clamp includes an extra-long 1\/4 inch bolt paired with a nylon insert locknut to resist vibration loosening over time. Each clamp carries a maximum torque rating of 75 inch-pounds, which should not be exceeded during installation to avoid damaging the hose or band.\u003c\/p\u003e\u003cp\u003eThis T-Bolt clamp line is sold as a single product family covering two inside-diameter sizes so boat owners can match the clamp to their exhaust hose without hunting through separate listings. Use it anywhere a standard worm-gear clamp is not robust enough, such as securing large-diameter exhaust hose to risers, mufflers, or through-hull fittings below the waterline.\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 18-720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 316 stainless steel band; 18-8 (304) stainless steel bolt, nut, and trunion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Thickness:\u003c\/strong\u003e 0.025 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 0.75 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt:\u003c\/strong\u003e Extra-long 1\/4 inch bolt with nylon insert locknut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Torque:\u003c\/strong\u003e 75 inch-pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Shields Series 200 and 250 hose (Series 202 silicone hose for the 6 inch size)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Below-the-waterline marine exhaust hose connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 2 inch ID, 6 inch ID\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the clamp by the inside diameter (ID) of the exhaust hose it will secure. The 2 inch clamp fits a diameter range of 2.27-2.67 inches and is intended for 2 inch ID hose. The 6 inch clamp fits a diameter range of 6.38-7.04 inches and is intended for 6 inch ID hose. Measure the outside diameter of the hose at the clamping point and select the size whose range matches your measurement.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra T-Bolt Band Clamp come in?\u003c\/strong\u003e This clamp line comes in two sizes: a 2 inch ID clamp (Sierra 18-720-2000) that fits a diameter range of 2.27-2.67 inches, and a 6 inch ID clamp (Sierra 18-720-6000) that fits a diameter range of 6.38-7.04 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hose does this clamp fit?\u003c\/strong\u003e The Sierra 18-720 T-Bolt Band Clamp is designed to fit Shields Series 200 and 250 exhaust hose, and the 6 inch size additionally fits Series 202 silicone hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this clamp safe to use below the waterline?\u003c\/strong\u003e Yes, the Sierra 18-720 T-Bolt Band Clamp is specifically designed for below-the-waterline exhaust hose applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the band made of?\u003c\/strong\u003e The band on this Sierra T-Bolt clamp is 316 stainless steel, 0.025 inch thick and 0.75 inch wide, chosen for corrosion resistance in wet marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hardware comes with the clamp?\u003c\/strong\u003e Each Sierra 18-720 clamp includes an extra-long 1\/4 inch bolt and a nylon insert locknut, with the bolt, nut, and trunion made of 18-8 (304) stainless steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much torque should I apply when tightening this clamp?\u003c\/strong\u003e The maximum torque rating for the Sierra 18-720 T-Bolt Band Clamp is 75 inch-pounds; exceeding this can damage the hose or band.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which size clamp to order?\u003c\/strong\u003e Measure the outside diameter of the exhaust hose at the clamping point: choose the 2 inch clamp (18-720-2000) for a 2.27-2.67 inch diameter, or the 6 inch clamp (18-720-6000) for a 6.38-7.04 inch diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, both the 18-720-2000 and 18-720-6000 clamps are genuine Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the two clamp sizes besides diameter?\u003c\/strong\u003e Beyond the ID and clamping diameter range, the two sizes in the 18-720 line differ in overall band dimension (\"C\" measurement), which is larger on the 6 inch clamp (18-720-6000) than on the 2 inch clamp (18-720-2000) to match the larger hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this clamp be used for anything other than exhaust hose?\u003c\/strong\u003e The Sierra 18-720 T-Bolt Band Clamp is designed as an exhaust hose clamp for below-the-waterline applications, matched to Shields Series 200, 250, and (on the 6 inch size) 202 hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"2\" ID","offer_id":48988031189211,"sku":"SIE-18-720-2000","price":9.82,"currency_code":"USD","in_stock":true},{"title":"6\" ID","offer_id":48988031221979,"sku":"SIE-118-720-6000","price":13.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sierra_lg_949__26559__74879.1772547083.500.750.jpg?v=1785189133"},{"product_id":"sierra-18-0183-1-exhaust-manifold-gasket-for-crusader-marine-engines-riser-18-1938-manifold-oem-98243","title":"Sierra Manifold Gasket 18-0183-1, Replaces 27-73866, for Exhaust Manifolds 18-1958-1 \u0026 18-1962-1","description":"\u003cp\u003eThe Sierra 18-0183-1 is a manifold gasket engineered to seal the connection between the exhaust manifold and the engine block on applicable inboard and sterndrive setups. It is designed for use with Sierra exhaust manifolds 18-1958-1 and 18-1962-1, and it is also included as a component in the Sierra 18-8509 mounting kit for buyers who need the full mounting hardware set rather than the gasket alone. A proper manifold gasket is a critical wear item: it maintains the seal against combustion gases, exhaust backpressure, and cooling water routed through the manifold passages, and a worn or failed gasket is a common cause of exhaust leaks, water intrusion, or gasket-related corrosion around the manifold mounting surface. Replacing this gasket whenever the manifold is removed, serviced, or reinstalled helps ensure a proper seal and prevents having to redo the job due to a compromised old gasket. This part cross-references directly to OEM number 27-73866, so it is a straightforward drop-in replacement for that OEM gasket. At 0.2 pounds, it ships and installs easily alongside routine manifold maintenance or a full manifold 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 18-0183-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Manifold Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed With:\u003c\/strong\u003e Manifolds 18-1958-1, 18-1962-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso Included In:\u003c\/strong\u003e 18-8509 mounting kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 27-73866\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse with exhaust manifold 18-1958-1\u003c\/li\u003e\n\u003cli\u003eUse with exhaust manifold 18-1962-1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-73866\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0183-1 gasket fit?\u003c\/strong\u003e The 18-0183-1 manifold gasket is designed for use with exhaust manifolds 18-1958-1 and 18-1962-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0183-1 the same as OEM part 27-73866?\u003c\/strong\u003e Yes, the Sierra 18-0183-1 gasket cross-references directly to OEM number 27-73866, making it a direct replacement for that part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this gasket weigh?\u003c\/strong\u003e The 18-0183-1 manifold gasket weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket come with the mounting kit?\u003c\/strong\u003e It is included as a component of the 18-8509 mounting kit, and it is also sold separately as the standalone 18-0183-1 gasket for buyers who only need the gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill I need more than one gasket for a manifold job?\u003c\/strong\u003e That depends on your manifold configuration; check whether your installation uses one or two manifolds, since each 18-1958-1 or 18-1962-1 manifold requires its own 18-0183-1 gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I reuse my old manifold gasket instead of replacing it?\u003c\/strong\u003e Manifold gaskets like the 18-0183-1 are designed as one-time-use sealing components, and reusing a compressed or damaged gasket increases the risk of exhaust or water leaks at the manifold joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the 18-8509 mounting kit?\u003c\/strong\u003e The 18-8509 mounting kit includes the 18-0183-1 manifold gasket along with mounting bolts for installing the manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0183-1 gasket for the manifold-to-block connection?\u003c\/strong\u003e Yes, this gasket seals the exhaust manifold at its mounting point for manifolds 18-1958-1 and 18-1962-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number should I search for if I only have the old part in hand?\u003c\/strong\u003e Look for OEM number 27-73866; the Sierra 18-0183-1 gasket is the direct replacement for that number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need special tools to install this gasket?\u003c\/strong\u003e Installation follows standard manifold gasket procedure: remove the old gasket, clean the mating surfaces, and torque the manifold bolts to the engine manufacturer's specification with the new 18-0183-1 gasket in place.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988031320283,"sku":"SIE-18-0183-1","price":13.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0183_lg__27751.1558118728.500.750.jpg?v=1785329169"},{"product_id":"sierra-18-7852-marine-fuel-water-separator-available-as-complete-kit-or-filter-with-bonus-pack","title":"Sierra Fuel Water Separator Filter Kit - Available as Standard Kit or Filter with Bonus Pack","description":"\u003cp\u003eThe Sierra 18-7852 Fuel Water Separator Kit protects marine fuel systems by removing over 99.8% of emulsified water from gasoline before it reaches your engine. Rated at 21 microns and flowing up to 90 GPH, it is built to feed even high-demand motors while guarding sensitive inboard, sterndrive, and outboard fuel injection systems against water contamination and the corrosion, hesitation, and injector damage it can cause.\u003c\/p\u003e\u003cp\u003eEach kit centers on a 1\/4\" filter element and includes the mounting hardware needed to add a water-separating stage to your fuel line. The Standard Kit pairs the filter with an 18-7853-1 mounting bracket for a straightforward installation, while the Filter with Bonus Pack version bundles in an 18-4256 pipe plug for a more complete setup. Both configurations use the same 18-7845 fuel filter element as the serviceable replacement cartridge going forward.\u003c\/p\u003e\u003cp\u003eThis kit is a Sierra-branded part built to OEM-equivalent specifications, making it a straightforward swap for factory-installed separators on compatible Mercury and Yamaha powered boats.\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 18-7852\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration Rating:\u003c\/strong\u003e 21 Micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Size:\u003c\/strong\u003e 1\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e 90 GPH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Removal Efficiency:\u003c\/strong\u003e Removes over 99.8% of emulsified water from gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Aluminum (Standard Kit); Stainless Steel (Filter with Bonus Pack)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.32 pounds (Standard Kit); 1 pound (Filter with Bonus Pack)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 18-7845 fuel filter and 18-7853-1 mounting bracket (Standard Kit); adds an 18-4256 pipe plug (Filter with Bonus Pack)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury Marine 35-807172A4, 35-60494A4, 35-805369A4, 35-57250A1, 35-55501A1, 35-52456A1, 35-60494A1, 52444 (Standard Kit); Yamaha MAR-SEPAR-AT-OR (Filter with Bonus Pack)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Inboard, sterndrive, and outboard fuel injection systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis kit is offered in two configurations under the same 18-7852 part family. Choose the Standard Kit if you need the core filter and mounting bracket for a new installation or bracket replacement. Choose the Filter with Bonus Pack version if you also need a pipe plug on hand for the install. Both use the same 1\/4\", 21 micron filter element.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7852 fuel water separator kit do?\u003c\/strong\u003e It removes over 99.8% of emulsified water from gasoline before it reaches the engine, protecting inboard, sterndrive, and outboard fuel injection systems from water contamination. The Sierra 18-7852 kit is rated at 21 microns and flows at up to 90 GPH.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Standard Kit and the Filter with Bonus Pack version?\u003c\/strong\u003e Both use the same 1\/4\", 21 micron filter and 18-7853-1 mounting bracket, but the Filter with Bonus Pack version of the 18-7852 kit also includes an 18-4256 pipe plug for a more complete installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size filter does this kit use?\u003c\/strong\u003e The Sierra 18-7852 kit uses a 1\/4\" filter element rated at 21 microns in both the Standard Kit and Filter with Bonus Pack configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box?\u003c\/strong\u003e The Standard Kit includes an 18-7845 fuel filter and an 18-7853-1 mounting bracket. The Filter with Bonus Pack version includes those same two parts plus an 18-4256 pipe plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this compatible with Mercury or Yamaha engines?\u003c\/strong\u003e The Standard Kit cross-references to Mercury Marine numbers 35-807172A4, 35-60494A4, 35-805369A4, 35-57250A1, 35-55501A1, 35-52456A1, 35-60494A1, and 52444. The Filter with Bonus Pack version cross-references to Yamaha MAR-SEPAR-AT-OR.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which variant to order?\u003c\/strong\u003e Order the Standard Kit if you only need the filter and mounting bracket, or the Filter with Bonus Pack version of the 18-7852 if you also want an 18-4256 pipe plug included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the housing made of?\u003c\/strong\u003e The Standard Kit uses an aluminum housing, while the Filter with Bonus Pack version is listed with a stainless steel outer housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat flow rate does the 18-7852 filter support?\u003c\/strong\u003e It supports a flow rate of up to 90 GPH, which is sized to feed high-demand marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this filter work with fuel-injected engines?\u003c\/strong\u003e Yes, the Sierra 18-7852 is designed to prevent water damage to sensitive inboard, sterndrive, and outboard fuel injection systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, this is a genuine Sierra 18-7852 fuel water separator kit manufactured to OEM-equivalent specifications, not a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does each version weigh?\u003c\/strong\u003e The Standard Kit weighs 0.32 pounds and the Filter with Bonus Pack version weighs 1 pound.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Kit","offer_id":48988054257883,"sku":"SIE-18-7852-1","price":43.06,"currency_code":"USD","in_stock":true},{"title":"Filter with Bonus Pack","offer_id":48988054290651,"sku":"SIE-18-7852-2","price":51.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7852-2_lg__08371.1558132578.500.750.jpg?v=1785188922"},{"product_id":"sierra-18-0184-rubber-ring-for-volvo-penta-reverse-tilt-lock-replaces-804190-fits-sp-a-dp-a-aq250-290-sterndrives","title":"Sierra Rubber Ring 18-0184, Replaces 804190, Clamp Ring Seal for Volvo Penta SP-A\/DP-A\/DP-B Drives and AQ Series Engines","description":"\u003cp\u003eThe Sierra Rubber Ring, part number 18-0184, is a clamp ring seal used on Volvo Penta sterndrive units and inboard engines. It is a direct replacement for OEM number 804190, allowing it to be installed anywhere that original ring was specified without modification. The ring is made of white rubber, shaped to seat against the clamp ring where the drive leg joins the transom assembly or where the engine-side clamp ring is fitted, helping maintain a sealed connection at that joint.\u003c\/p\u003e\u003cp\u003eThis ring fits Volvo Penta drive legs including 275A, 280, 280DP, 280L, 285A, 290, 290A, 290DP, SP-A, SP-A\/MT, SP-A1, SP-A2, DP-A, DP-A1, DP-A2, DP-B, and DP-B1. The same clamp ring design is also used on a wide range of AQ-series engines, so 18-0184 additionally fits 230A\/SP-A\/MT, 250A\/SP-A\/MT, 500A, 501A, 571A, 740A, AQ100, AQ105, AQ110, AQ115A, AQ110B, AQ120A, AQ120B, AQ125A\/B, AQ130A\/B, AQ131A\/D, AQ175A, AQ190A, AQ200A\/C\/D\/F, AQ210A, AQ211A, AQ225A\/B\/C\/D\/E\/F, AQ231A\/B, AQ240A, AQ255A\/B, AQ260A\/B, AQ271A\/B\/C\/D, AQ280A, AQ290A, AQ311A\/B, AQ60F, AQ80, AQ90, AQ95, AQD19, AQD29\/A, and AQD32A. Each unit ships as a single ring weighing 0.57 pounds. Confirm your drive or engine model against this fitment list before ordering, since Sierra also offers a separate rubber ring, 18-8368, for a different clamp ring range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-0184\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Rubber Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 ring per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282188641\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 804190\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta drive legs: 275A, 280, 280DP, 280L, 285A, 290, 290A, 290DP, SP-A, SP-A\/MT, SP-A1, SP-A2, DP-A, DP-A1, DP-A2, DP-B, DP-B1\u003c\/li\u003e\n\u003cli\u003eClamp ring fits: 230A\/SP-A\/MT, 250A\/SP-A\/MT, 500A, 501A, 571A, 740A, AQ100, AQ105, AQ110, AQ115A, AQ110B, AQ120A, AQ120B, AQ125A\/B, AQ130A\/B, AQ131A\/D, AQ175A, AQ190A, AQ200A\/C\/D\/F, AQ210A, AQ211A, AQ225A\/B\/C\/D\/E\/F, AQ231A\/B, AQ240A, AQ255A\/B, AQ260A\/B, AQ271A\/B\/C\/D, AQ280A, AQ290A, AQ311A\/B, AQ60F, AQ80, AQ90, AQ95, AQD19, AQD29\/A, AQD32A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e804190\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does Sierra Rubber Ring 18-0184 replace?\u003c\/strong\u003e Part number 18-0184 replaces OEM number 804190, so it installs as a direct equivalent anywhere that original clamp ring seal was specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Volvo Penta drive legs use this clamp ring?\u003c\/strong\u003e The 18-0184 rubber ring fits clamp rings on 275A, 280, 280DP, 280L, 285A, 290, 290A, and 290DP drive legs, as well as SP-A, SP-A\/MT, SP-A1, SP-A2, DP-A, DP-A1, DP-A2, DP-B, and DP-B1 legs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0184 ring fit engines as well as drive legs?\u003c\/strong\u003e Yes, the clamp ring sealed by this ring also fits AQ-series engines including AQ100, AQ105, AQ110, AQ115A, AQ110B, AQ120A\/B, AQ125A\/B, AQ130A\/B, AQ131A\/D, AQ175A, AQ190A, AQ200A\/C\/D\/F, AQ210A, AQ211A, AQ225A\/B\/C\/D\/E\/F, AQ231A\/B, AQ240A, AQ255A\/B, AQ260A\/B, AQ271A\/B\/C\/D, AQ280A, AQ290A, and AQ311A\/B, plus 230A\/SP-A\/MT, 250A\/SP-A\/MT, 500A, 501A, 571A, 740A, AQ60F, AQ80, AQ90, AQ95, AQD19, AQD29\/A, and AQD32A.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0184 ring made of?\u003c\/strong\u003e It is a rubber ring, sized to seat against the clamp ring on compatible Volvo Penta drive legs and AQ-series engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-0184 rubber ring?\u003c\/strong\u003e The 18-0184 rubber ring is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does part number 18-0184 weigh?\u003c\/strong\u003e The Sierra 18-0184 rubber ring weighs 0.57 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many rings are included when ordering 18-0184?\u003c\/strong\u003e Each package of Sierra part 18-0184 contains one rubber ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0184 a genuine Sierra part or a generic aftermarket seal?\u003c\/strong\u003e 18-0184 is a Sierra-branded rubber ring engineered to replace OEM number 804190, rather than a generic universal seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between Sierra 18-0184 and 18-8368?\u003c\/strong\u003e Sierra 18-0184 replaces OEM 804190 and fits clamp rings on 275A\/280\/290-series drive legs and AQ100 through AQ311A\/B engines, while Sierra 18-8368 is a separate rubber ring that replaces OEM 813967 and fits a different clamp ring range including 230A\/SP-A\/SP A1, 230B, 250A\/B, 251A, 430A\/B, 431A\/B, 432A, 434A, 500B, 501B, 570A, and 572A. Match your drive or engine model to the correct part before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm 18-0184 is the correct ring for my drive or engine?\u003c\/strong\u003e Check your model against the 18-0184 fitment list, which covers 275A, 280, 280DP, 280L, 285A, 290, 290A, 290DP, SP-A, SP-A\/MT, SP-A1, SP-A2, DP-A, DP-A1, DP-A2, DP-B, DP-B1, and the AQ-series engines listed for its clamp ring; if your model is not on that list, a different Sierra rubber ring such as 18-8368 may be the correct part instead.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988055240923,"sku":"SIE-18-0184","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0184_lg__99246.1558118790.500.750.jpg?v=1785188306"},{"product_id":"sierra-18-7982-marine-fuel-water-separator-available-as-kit-or-kit-with-bonus-spare-filter","title":"Sierra 18-7982 Fuel Water Separator Kit, 1\/4 Inch Aluminum, 10 Micron - Available in Standard Kit or Filter with Bonus Pack","description":"\u003cp\u003eThe Sierra 18-7982 fuel water separator kit protects gasoline fuel-injected marine engines from water contamination and particulate damage. Built around a 1\/4 inch (6.4mm) aluminum tall-filter housing, the kit uses a 10 micron filter element that is over 90% efficient at removing particles as small as 10 microns, while removing over 99.8% of emulsified water from the fuel before it reaches the engine. Rated to flow up to 90 gallons per hour, the filter is sized to keep pace with high-demand fuel-injected motors without restricting flow. It is designed for use on inboard, sterndrive, and outboard fuel-injection systems and is cross-referenced to multiple Mercury Marine fuel-water separator part numbers, making it a straightforward replacement where those numbers are specified.\u003c\/p\u003e\u003cp\u003eThe line is offered in two configurations. The standard kit (18-7982-1) includes one 10 micron aluminum filter element (18-7945) and a mounting base (18-7853-1), giving you everything needed for a complete first-time installation or full kit replacement. The filter with bonus pack (18-7982-2) adds a second, spare filter element on top of the same core kit, so you have a ready replacement element on hand for the next service interval without ordering separately.\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 18-7982\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Micron Rating:\u003c\/strong\u003e 10 Micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Size:\u003c\/strong\u003e 1\/4 inch (6.4mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Style:\u003c\/strong\u003e Tall Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Flow Rate:\u003c\/strong\u003e 90 gallons per hour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Removal Efficiency:\u003c\/strong\u003e Removes over 99.8% of emulsified water from gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticle Filtration Efficiency:\u003c\/strong\u003e Over 90% efficient at removing particles as small as 10 microns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Boat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal fit for gasoline fuel-injected engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury 35-802893A4, 35-60494A4, 35-807172A4, 35-60494A1, 35-57250A1, 35-55501A1, 35-52456A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.36 pounds (Standard Kit); 1.08 pounds (Filter with Bonus Pack)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 1 x 18-7945 filter element and 1 x 18-7853-1 mounting base (Standard Kit); adds a second spare filter element (Filter with Bonus Pack)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eBoth options share the same 1\/4 inch aluminum, 10 micron filter and mounting base. Choose the Standard Kit (18-7982-1) for a first-time install or straight kit replacement. Choose the Filter with Bonus Pack (18-7982-2) if you want a spare filter element included so the next scheduled filter change is already on hand.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7982 fuel water separator kit remove from the fuel?\u003c\/strong\u003e It removes over 99.8% of emulsified water from gasoline and is over 90% efficient at capturing particles as small as 10 microns, protecting sensitive fuel-injection components from contamination.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size fuel connections does this kit use?\u003c\/strong\u003e The Sierra 18-7982 kit is built around a 1\/4 inch (6.4mm) aluminum tall-filter housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-7982-1 and 18-7982-2 kits?\u003c\/strong\u003e 18-7982-1 is the standard kit with one 10 micron filter element and mounting base, while 18-7982-2 is the same kit with an added spare filter element for the next service change. Pick the bonus pack version if you want a replacement element already on hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the filter housing made from?\u003c\/strong\u003e The housing is aluminum, matching the tall-filter design used across the 18-7982 kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much fuel flow can the 18-7982 filter handle?\u003c\/strong\u003e Up to 90 gallons per hour, which is enough flow to feed high-demand fuel-injected marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the Sierra 18-7982 kit?\u003c\/strong\u003e The standard kit includes one 18-7945 filter element and one 18-7853-1 mounting base; the bonus pack version includes those same parts plus a second, spare filter element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7982 compatible with Mercury outboards?\u003c\/strong\u003e Yes, it cross-references to Mercury Marine part numbers 35-802893A4, 35-60494A4, 35-807172A4, 35-60494A1, 35-57250A1, 35-55501A1, and 35-52456A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat types of engines is this fuel water separator designed for?\u003c\/strong\u003e The 18-7982 kit is designed for gasoline fuel-injected inboard, sterndrive, and outboard engines to guard against water damage to the injection system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the spare element in the bonus pack the same filter used in the standard kit?\u003c\/strong\u003e Yes, the 18-7982-2 filter with bonus pack uses the same 10 micron aluminum element as the standard 18-7982-1 kit, just with an extra one included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-7982 kit is a genuine Sierra-manufactured fuel water separator, sold as a direct cross-reference replacement for the listed Mercury part numbers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Kit","offer_id":48988055699675,"sku":"SIE-18-7982-1","price":41.11,"currency_code":"USD","in_stock":true},{"title":"Kit with Bonus Spare Filter","offer_id":48988055732443,"sku":"SIE-18-7982-2","price":49.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__88765.1771539699.500.750.jpg?v=1785188707"},{"product_id":"marine-engine-washer-92990-10600-00-for-yamaha-225-hp-outboard-1992-1993-1997-sierra-18-0192","title":"Sierra Washer 18-0192, Replaces Yamaha 92901-10600-00, 92902-10600-00, 92903-10600-00","description":"\u003cp\u003eThe Sierra 18-0192 is a marine engine washer designed as a direct replacement for the Yamaha OEM washers listed below. It is used during outboard engine service and reassembly to provide a proper seating surface at fastener and fitting points, helping maintain a secure, even fit where these Yamaha OEM washers are called for. Priced and sold per piece, it is a small but important part to have on hand for engine maintenance and repair jobs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-0192\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282291839\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Priced per piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDesigned to fit applications using Yamaha OEM washers 92901-10600-00, 92902-10600-00, and 92903-10600-00\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha 92901-10600-00\u003c\/li\u003e\n\u003cli\u003eYamaha 92902-10600-00\u003c\/li\u003e\n\u003cli\u003eYamaha 92903-10600-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0192 washer used for?\u003c\/strong\u003e The Sierra 18-0192 is an engine washer used during outboard engine service and reassembly at points where the corresponding Yamaha OEM washer is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Yamaha OEM part numbers does the Sierra 18-0192 replace?\u003c\/strong\u003e It replaces three Yamaha OEM numbers: 92901-10600-00, 92902-10600-00, and 92903-10600-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0192 a genuine Yamaha part or an aftermarket replacement?\u003c\/strong\u003e The 18-0192 is a Sierra-branded aftermarket washer manufactured to replace the Yamaha OEM washers 92901-10600-00, 92902-10600-00, and 92903-10600-00, not a Yamaha-branded original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0192 washer weigh?\u003c\/strong\u003e This washer weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0192 sold individually or in a set?\u003c\/strong\u003e The 18-0192 washer is priced and sold per piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill one Sierra 18-0192 washer work in place of any of the three listed Yamaha numbers?\u003c\/strong\u003e Yes, the Sierra 18-0192 is a single part that cross-references to all three Yamaha OEM numbers: 92901-10600-00, 92902-10600-00, and 92903-10600-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of part is the Sierra 18-0192?\u003c\/strong\u003e The 18-0192 is classified as an engine parts item, specifically a washer used in outboard engine assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the Sierra 18-0192 washer for my engine?\u003c\/strong\u003e If your Yamaha engine calls for OEM washer 92901-10600-00, 92902-10600-00, or 92903-10600-00, the Sierra 18-0192 is the matching replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0192 come with any other hardware?\u003c\/strong\u003e The 18-0192 listing is for the washer only, priced per piece, with no additional hardware included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988056715483,"sku":"SIE-18-0192","price":0.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0192__32942.1558184442.500.750.jpg?v=1785329190"},{"product_id":"sierra-10-micron-marine-fuel-water-separator-available-as-complete-kit-or-filter-with-bonus-pack","title":"Sierra 18-7983 Mercury Fuel\/Water Separator Filter - Available as Kit or Filter with Bonus Pack","description":"\u003cp\u003eThe Sierra 18-7983 is a 10 micron fuel\/water separator filter built for Mercury outboard fuel injected engines, designed to protect sensitive fuel injection components from water contamination and debris. The filter uses a 1\/4 inch aluminum short-filter housing and removes over 99.8 percent of emulsified water from gasoline while filtering out over 90 percent of particles as small as 10 microns. Rated to flow up to 90 gallons per hour, it supplies enough clean, dry fuel for high-demand outboard motors without restricting flow.\u003c\/p\u003e\u003cp\u003eEach build includes the core filter element (18-7944) along with the mounting base\/seal component (18-7853-1), giving you a complete water-separating assembly rather than just a replacement cartridge. It is engineered as a direct match for a wide range of Mercury outboards, cross-referencing to numerous Mercury OEM part numbers, so it installs as a factory-equivalent solution. The 18-7983 is offered in two configurations so you can choose the complete kit or a filter that comes bundled with a bonus item, depending on whether you are doing a first-time install or a routine filter change.\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 18-7983\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuel\/Water Separator Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicron Rating:\u003c\/strong\u003e 10 Micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Housing Length:\u003c\/strong\u003e Short Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Diameter\/Thread Size:\u003c\/strong\u003e 1\/4 inch (6.4mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e 90 Gallons Per Hour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Removal Efficiency:\u003c\/strong\u003e Over 99.8 percent of emulsified water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticle Filtration Efficiency:\u003c\/strong\u003e Over 90 percent of particles as small as 10 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 1 filter element (18-7944) and 1 base\/seal component (18-7853-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit for compatible Mercury outboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury 35-802893A4, Q4, 35-60494A4, 35-807172A4, 35-60494A1, 35-57250A1, 35-55501A1, 35-52456A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThe Sierra 18-7983 line is available in two configurations. The Fuel\/Water Separator Kit is the complete assembly, ideal for a first-time installation or when the mounting base needs replacing along with the filter. The Filter with Bonus Pack version is intended for buyers who already have the base assembly installed and need a replacement filter, and it ships with an extra bonus item included. Choose based on whether you need the full assembly or just a filter replacement.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat micron rating does the Sierra 18-7983 filter use?\u003c\/strong\u003e The Sierra 18-7983 fuel\/water separator filter uses a 10 micron element, which is over 90 percent efficient at removing particles as small as 10 microns from the fuel stream.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much water can the 18-7983 remove from fuel?\u003c\/strong\u003e It removes over 99.8 percent of emulsified water from gasoline, protecting fuel injected engines from water-related damage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the flow rate of the Sierra 18-7983?\u003c\/strong\u003e This filter flows at up to 90 gallons per hour, enough capacity to feed high-demand outboard motors without restricting fuel delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat Mercury OEM part numbers does the 18-7983 replace?\u003c\/strong\u003e The 18-7983 cross-references to Mercury 35-802893A4, Q4, 35-60494A4, 35-807172A4, 35-60494A1, 35-57250A1, 35-55501A1, and 35-52456A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size fitting does this filter use?\u003c\/strong\u003e The Sierra 18-7983 has a 1\/4 inch (6.4mm) fitting size and uses an aluminum short-filter housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I choose the Kit or the Filter with Bonus Pack?\u003c\/strong\u003e Choose the Fuel\/Water Separator Kit if you need the complete assembly including the base\/seal component, such as for a first-time installation; choose the Filter with Bonus Pack if you already have the base installed and just need a replacement filter, since it comes with an extra bonus item included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-7983 kit?\u003c\/strong\u003e The kit configuration of the Sierra 18-7983 includes one filter element (18-7944) and one base\/seal component (18-7853-1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7983 a genuine Sierra part or an aftermarket equivalent?\u003c\/strong\u003e The 18-7983 is manufactured by Sierra as a direct-fit aftermarket replacement engineered to Mercury OEM specifications, not a repackaged factory part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the filter housing made of?\u003c\/strong\u003e Both configurations of the 18-7983 use an aluminum outer housing in the short-filter length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this filter work with fuel injected outboard engines?\u003c\/strong\u003e Yes, the Sierra 18-7983 is designed specifically to protect sensitive inboard, sterndrive, and outboard fuel injection systems from water and particulate contamination.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-7983 different from other Sierra fuel\/water separators like the 18-7982-1?\u003c\/strong\u003e The 18-7983 uses a short aluminum filter housing with a 1\/4 inch fitting and a 10 micron rating, distinguishing it from other Sierra separators that use a tall housing, a different fitting size, or stainless steel construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the filter need to be replaced on a schedule?\u003c\/strong\u003e Fuel\/water separator filters like the Sierra 18-7983 are a routine maintenance item and should be replaced periodically as part of regular engine service to maintain the rated 90 gallon-per-hour flow and filtration efficiency.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Kit","offer_id":48988057075931,"sku":"SIE-18-7983-1","price":41.73,"currency_code":"USD","in_stock":true},{"title":"Filter with Bonus Pack","offer_id":48988057108699,"sku":"SIE-18-7983-2","price":43.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-7983-2__23442.1739458911.500.750.jpg?v=1785188658"},{"product_id":"sierra-pro-performance-marine-bearing-grease-3-oz-cartridge-available-in-2-pack-and-4-pack","title":"Sierra Marine Grease 3 oz. Mini Grease Gun Cartridges - Available in 2-Pack and 4-Pack","description":"\u003cp\u003eSierra Marine Grease is a premium lithium-formula grease packaged in convenient 3 oz. Cartridges sized for a mini grease gun, making it easy to service hard-to-reach fittings without the mess of a tub or tube. It is designed to protect against corrosion in both fresh and saltwater applications and is intended for use on trailer wheel bearings, universal joints, outdrive pivot joints, gimbal bearings, and shaft splines. The lithium base holds up across a wide operating temperature range of -40 F to 350 F, so it stays effective in cold winter storage and hot running conditions alike.\u003c\/p\u003e\u003cp\u003eThis grease is interchangeable with Mercury Marine 92-8M0071837, and each Sierra product is built to meet or exceed the original equipment part it replaces. The 3 oz. Cartridge format is purpose-built for mini grease guns, letting you apply grease precisely at zerk fittings on trailers, outdrives, and steering components. It is sold as a case pack so boaters and marine techs can keep spares on hand for routine maintenance and off-season lay-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 18-9200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Form:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Lithium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Size:\u003c\/strong\u003e 3 fluid ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40 F to 350 F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Uses:\u003c\/strong\u003e Automotive, Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Use:\u003c\/strong\u003e Corrosion prevention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Applications:\u003c\/strong\u003e Trailer wheel bearings, universal joints, outdrive pivot joints, gimbal bearings, shaft splines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury Cross-Reference:\u003c\/strong\u003e 92-8M0071837\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis grease is sold in two cartridge pack sizes so you can match the quantity to how often you service fittings: a 2-Pack of 3 oz. Cartridges for occasional maintenance, or a 4-Pack of 3 oz. Cartridges for shops or boaters who grease multiple fittings regularly or want extra cartridges on hand. Both options use the identical 3 oz. Mini-grease-gun cartridge; only the number of cartridges included differs.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra Marine Grease used for?\u003c\/strong\u003e It is a lithium-based marine grease intended for trailer wheel bearings, universal joints, outdrive pivot joints, gimbal bearings, and shaft splines, protecting these fittings from corrosion in fresh and saltwater use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size are the grease cartridges?\u003c\/strong\u003e Each cartridge holds 3 fluid ounces of grease and is sized to fit a mini grease gun for precise application at zerk fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I choose between the 2-pack and 4-pack?\u003c\/strong\u003e Both options contain the same 3 oz. Mini-grease-gun cartridges of Sierra Marine Grease; choose the 2-Pack for occasional maintenance or the 4-Pack if you service multiple fittings regularly or want extra cartridges on hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this grease interchangeable with a Mercury part?\u003c\/strong\u003e Yes, Sierra Marine Grease in the 3 oz. Cartridge is interchangeable with Mercury Marine part number 92-8M0071837.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range can this grease handle?\u003c\/strong\u003e The grease is rated for an operating temperature range of -40 F to 350 F, making it suitable for both cold winter storage and hot running conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this grease work in saltwater?\u003c\/strong\u003e Yes, the lithium formulation is designed for optimum corrosion protection in both fresh and saltwater marine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the grease made from?\u003c\/strong\u003e Sierra Marine Grease uses a lithium base formulated specifically for marine corrosion protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a special tool to apply this grease?\u003c\/strong\u003e The 3 oz. Cartridges are designed for use with a mini grease gun rather than a standard full-size grease gun.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this grease be used on gimbal bearings and shaft splines?\u003c\/strong\u003e Yes, along with trailer wheel bearings, universal joints, and outdrive pivot joints, gimbal bearings and shaft splines are listed applications for this grease.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra product or aftermarket?\u003c\/strong\u003e It is a genuine Sierra Marine Grease product, engineered to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"2-Pack","offer_id":48988057338075,"sku":"SIE-18-9200-2","price":11.92,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":48988057370843,"sku":"SIE-18-9200-4","price":21.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51T8TzfCoqL.jpg?v=1784386088"},{"product_id":"sierra-25w-40-fc-w-4-stroke-marine-stern-drive-oil-available-in-quart-and-5-quart-sizes","title":"Sierra 25W-40 FC-W Stern Drive Oil - Available in Quart and 5 Quart","description":"\u003cp\u003eSierra 25W-40 FC-W 4-Stroke Stern Drive Oil is a marine-specific engine oil developed for the high load and running stresses that stern drive and inboard engines experience on the water. Standard automotive 4-cycle oils are formulated for a very different duty cycle, so Sierra built this oil specifically for the marine environment, where it outperforms typical automotive oils in protecting hard-working stern drive and inboard powerheads.\u003c\/p\u003e\u003cp\u003eThe 25W-40 blend offers strong detergency, anti-oxidants, and anti-wear additives, along with corrosion protection that helps guard internal engine components during storage and use in a marine environment. It also delivers excellent low-temperature operating properties for reliable startup and circulation in cooler conditions. The oil is NMMA FC-W Certified and meets or exceeds API SJ, CF-4, and CH-4 performance standards, and is recommended for use in Mercruiser and OMC stern drive and inboard engines.\u003c\/p\u003e\u003cp\u003eThis oil is sold as a product line available in two container sizes so you can buy the right quantity for a single oil change or stock up for multiple services.\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 18-9400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Stern Drive Motor Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity:\u003c\/strong\u003e 25W-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e NMMA FC-W Certified; meets or exceeds API SJ, CF-4, CH-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Mercruiser and OMC stern drive and inboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Boat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Quart (32 Fluid Ounces), 5 Quart (160 Fluid Ounces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e MERCURY MARINE 92-857389A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the Quart size for a single top-off or partial oil change, or the 5 Quart size if your engine's sump capacity requires more volume or you want to keep extra oil on hand for future changes. Both sizes contain the identical 25W-40 FC-W formulation; only the container volume differs.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat viscosity is Sierra 25W-40 FC-W Stern Drive Oil?\u003c\/strong\u003e It is a 25W-40 viscosity blend, formulated specifically for marine stern drive and inboard engines rather than automotive use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil certified for marine engines?\u003c\/strong\u003e Yes, Sierra 18-9400 is NMMA FC-W Certified and meets or exceeds API SJ, CF-4, and CH-4 performance standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is Sierra 18-9400 recommended for?\u003c\/strong\u003e It is recommended for use in Mercruiser and OMC stern drive and inboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does this oil come in?\u003c\/strong\u003e Sierra 25W-40 FC-W Stern Drive Oil is available in a Quart (32 fluid ounces) bottle and a 5 Quart (160 fluid ounces) container, both part of the 18-9400 line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which size to order?\u003c\/strong\u003e Order the Quart size for a single top-off or a partial oil change, and the 5 Quart size if your engine's oil change requires a larger volume or you want extra on hand; both sizes are the same 25W-40 FC-W formula.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an OEM equivalent part number for this oil?\u003c\/strong\u003e Yes, Sierra 18-9400 25W-40 FC-W oil has an OEM equivalent part number of MERCURY MARINE 92-857389A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this oil be used in automotive engines instead of a standard 4-cycle automotive oil?\u003c\/strong\u003e This oil is developed for the marine environment and stern drive\/inboard duty cycles; it is intended to outperform standard 4-cycle automotive oils in that application rather than serve as a substitute for automotive-specified oils.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra 25W-40 FC-W oil provide corrosion protection?\u003c\/strong\u003e Yes, the formulation includes corrosion protection additives along with detergency and anti-wear properties to protect internal engine components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does this oil perform in cold conditions?\u003c\/strong\u003e Sierra 18-9400 25W-40 FC-W oil has excellent low-temperature operating properties for reliable performance in cooler conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this oil made?\u003c\/strong\u003e Sierra 25W-40 FC-W Stern Drive Oil is made in the USA.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat container does the oil come in?\u003c\/strong\u003e Both the Quart and 5 Quart sizes of Sierra 18-9400 oil are packaged in bottle containers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988057895131,"sku":"SIE-18-9400-2","price":11.77,"currency_code":"USD","in_stock":true},{"title":"5 Quart","offer_id":48988057927899,"sku":"SIE-18-9400-4","price":52.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/118-9400-2__18889.1753840709.500.750.jpg?v=1785189204"},{"product_id":"sierra-18-0203-9-bell-housing-washer-replaces-mercruiser-12-35935-fits-all-mercruiser-sterndrives-1963-1998-pack-of-5","title":"Sierra 18-0203-9 Bell Housing Washer, Replaces Mercruiser 12-29395, Fits Sterndrives 1963-1998, Pack of 5","description":"\u003cp\u003eThe Sierra 18-0203-9 Bell Housing Washer is a brass conical spring washer designed for use at the bell housing joint on Mercruiser sterndrive units. It is sold in a package of 5, matching the quantity typically needed for a bell housing service or rebuild job. The conical spring design allows the washer to provide consistent seating pressure at the fastener location, helping maintain a secure, properly torqued connection during reassembly.\u003c\/p\u003e\u003cp\u003eBuilt from brass, the washer resists corrosion in the marine environment better than uncoated steel alternatives, which matters given its location near the drive unit and exposure to bilge moisture and saltwater spray. Each washer measures 0.39 x 0.39 x 0.39 inches. The Sierra 18-0203-9 is intended as a direct equivalent for the original equipment washer it replaces, so it installs using the same fasteners and orientation as the factory part with no modification required.\u003c\/p\u003e\u003cp\u003eThis washer fits all Mercruiser sterndrives from 1963 to 1998, making it a common replacement part for owners doing bell housing maintenance, gasket replacement, or a full drive service on older Mercruiser-powered boats. Because it is sold in a 5-pack, it is priced and packaged for a complete job rather than a single washer 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 18-0203-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bell Housing Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWasher Type:\u003c\/strong\u003e Conical Spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Brass\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\u003ePack Quantity:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282166816\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll Mercruiser sterndrives, 1963-1998\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12-29395\u003c\/li\u003e\n\u003cli\u003e12-8M0042641\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0203-9 washer fit?\u003c\/strong\u003e The Sierra 18-0203-9 Bell Housing Washer fits all Mercruiser sterndrives from 1963 to 1998.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many washers come in a pack?\u003c\/strong\u003e The 18-0203-9 is sold in a package of 5 brass bell housing washers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this washer replace?\u003c\/strong\u003e Sierra 18-0203-9 replaces OEM numbers 12-29395 and 12-8M0042641.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the bell housing washer made from?\u003c\/strong\u003e It is made from brass, which resists corrosion better than uncoated steel in a marine bilge environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-0203-9 washer?\u003c\/strong\u003e Each washer in the 18-0203-9 pack measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of washer is this?\u003c\/strong\u003e The 18-0203-9 is a conical spring washer, which provides consistent seating pressure at the bell housing fastener.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0203-9 an aftermarket or genuine Mercruiser part?\u003c\/strong\u003e It is a Sierra aftermarket washer manufactured to be a direct equivalent to the original Mercruiser bell housing washer it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0203-9 washer pack weigh?\u003c\/strong\u003e The full package of 5 Sierra 18-0203-9 washers weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a full pack of 5 for a bell housing job?\u003c\/strong\u003e The 18-0203-9 is packaged in quantities of 5 to match a typical bell housing service, though exact usage depends on the specific job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this washer work on a Mercruiser from the 2000s?\u003c\/strong\u003e The Sierra 18-0203-9 is specified for Mercruiser sterndrives from 1963 to 1998; fitment outside that range is not confirmed for this part.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988057960667,"sku":"SIE-18-0203-9","price":12.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0203_lg__56485.1558119673.500.750.jpg?v=1785187970"},{"product_id":"sierra-sae-30-full-synthetic-marine-engine-oil-available-in-quart-and-5-quart-sizes","title":"Sierra Full Synthetic SAE 30 Engine Oil - Available in Quart and 5 Quart","description":"\u003cp\u003eSierra Full Synthetic SAE 30 Engine Oil is a full synthetic lubricant recommended for gasoline and diesel inboard and sterndrive engines. Its full synthetic base provides longer lubrication effectiveness than conventional mineral-based oils, helping protect critical engine components during startup, normal operation, and storage. The formulation is API CF\/SL rated, meeting service requirements for both diesel (CF) and gasoline (SL) applications commonly found in marine inboard and sterndrive powerplants.\u003c\/p\u003e\u003cp\u003eRegular use of a full synthetic oil helps reduce oil consumption and can improve fuel economy compared to conventional oils, while its stable synthetic molecular structure resists breakdown under the heat cycling and extended idle periods typical of marine engines. This makes it a suitable choice for engines that see seasonal storage as well as regular operation.\u003c\/p\u003e\u003cp\u003eThis oil is sold as a single product line offered in two bottle sizes to match different oil change needs: a Quart bottle for topping off or smaller-capacity engines, and a 5 Quart bottle for a full oil change on larger-capacity inboard or sterndrive engines. Always confirm your engine's oil capacity and manufacturer-recommended change interval before purchasing.\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 18-9410\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Type:\u003c\/strong\u003e Full Synthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE Viscosity Grade:\u003c\/strong\u003e SAE 30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPI Service Rating:\u003c\/strong\u003e API CF\/SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Gasoline and diesel inboard and sterndrive engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Quart (32 Fluid Ounces), 5 Quart (160 Fluid Ounces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the Quart size for topping off oil between changes or for smaller-capacity engines, and choose the 5 Quart size when performing a complete oil change on larger inboard or sterndrive engines. Check your engine's total oil capacity to determine how many bottles you need.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat SAE viscosity grade is this oil?\u003c\/strong\u003e Sierra Full Synthetic Engine Oil (part number 18-9410) is an SAE 30 single-grade oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil full synthetic or conventional?\u003c\/strong\u003e It is a full synthetic formulation, which provides longer lubrication effectiveness than conventional mineral-based oils.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat API service rating does this oil meet?\u003c\/strong\u003e The 18-9410 oil is rated API CF\/SL, covering both diesel (CF) and gasoline (SL) service requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is this oil recommended for?\u003c\/strong\u003e Sierra recommends this SAE 30 full synthetic oil for gasoline and diesel inboard and sterndrive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes are available for this oil?\u003c\/strong\u003e This oil line is available in a Quart bottle and a 5 Quart bottle, sold as part numbers 18-9410-2 and 18-9410-4 respectively.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I choose between the Quart and 5 Quart bottle?\u003c\/strong\u003e Pick the size based on your engine's total oil capacity: use the Quart bottle for topping off or smaller engines, and the 5 Quart bottle for a complete oil change on larger inboard or sterndrive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this oil help with fuel economy or oil consumption?\u003c\/strong\u003e Yes, the full synthetic formulation of the 18-9410 oil is designed to reduce oil consumption and can improve fuel economy compared to conventional oils.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil suitable for engine storage periods?\u003c\/strong\u003e The 18-9410 full synthetic SAE 30 oil is formulated to provide superior engine protection during startups, operation, and storage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the package?\u003c\/strong\u003e Each purchase includes a single bottle of Sierra Full Synthetic SAE 30 Engine Oil in the size selected, either Quart or 5 Quart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra product?\u003c\/strong\u003e Yes, this is a genuine Sierra-branded full synthetic SAE 30 engine oil, part number 18-9410.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988058091739,"sku":"SIE-18-9410-2","price":13.44,"currency_code":"USD","in_stock":true},{"title":"5 Quart","offer_id":48988058124507,"sku":"SIE-18-9410-4","price":56.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9410-2_NEW__11726.1763741575.500.750.jpg?v=1785188771"},{"product_id":"sierra-18-9420-10w-30-4-stroke-marine-outboard-engine-oil-available-in-quart-and-gallon","title":"Sierra 10W30 4-Stroke Marine Outboard Engine Oil - Available in Quart and Gallon","description":"\u003cp\u003eSierra 10W30 4-Stroke Marine Outboard Engine Oil is a premium blend lubricant formulated specifically for the demands of 4-stroke outboard motors. The 10W-30 viscosity offers better cold-starting performance while reducing sludge buildup, helping keep the engine cleaner and running more efficiently over time. It is formulated to meet or exceed the requirements set by 4-stroke marine motor manufacturers and is certified to API SJ, CF-2, and CH-4 performance standards, as well as NMMA FC-W certified for marine service.\u003c\/p\u003e\u003cp\u003eThis oil is packaged in a bottle and is sold as a single unit in your choice of size, making it easy to keep the right amount of oil on hand whether you are doing a routine top-off or a full oil change. As a 4-stroke formulation, it is intended for outboard engines that require 4-stroke oil rather than 2-stroke oil\/fuel mix.\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 18-9420\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 4-Stroke Marine Outboard Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity Grade:\u003c\/strong\u003e 10W-30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e API SJ, CF-2, CH-4; NMMA FC-W Certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 per bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes Available:\u003c\/strong\u003e Quart, Gallon\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis oil is offered in two bottle sizes to match how you use it. Choose the Quart size for topping off oil levels or smaller jobs, or choose the Gallon size for a full oil change or if you run through oil more quickly. Select the size you need from the options above; both sizes contain the same 10W30 4-Stroke formulation.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size options are available for this oil?\u003c\/strong\u003e Sierra 10W30 4-Stroke Marine Outboard Engine Oil (part 18-9420) is sold in a Quart bottle or a Gallon bottle, so you can pick the amount that matches your oil change or top-off needs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil for 2-stroke or 4-stroke outboard engines?\u003c\/strong\u003e This is a 4-Stroke formulation, meant for 4-stroke outboard motors rather than 2-stroke engines that require an oil\/fuel mix.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat viscosity grade is this oil?\u003c\/strong\u003e It is a 10W-30 viscosity blend, chosen for its low-temperature viscosity that supports easier cold starting in outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat certifications does this oil carry?\u003c\/strong\u003e The 10W30 formulation meets API SJ, CF-2, and CH-4 performance standards and is NMMA FC-W Certified for marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I choose between the Quart and Gallon size?\u003c\/strong\u003e Pick the Quart of Sierra 18-9420 10W30 4-Stroke oil for smaller top-offs, or the Gallon size if you are doing a complete oil change or need a larger supply on hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this oil help reduce engine sludge?\u003c\/strong\u003e Yes, the 10W-30 blend is formulated to reduce sludge buildup, which helps keep the outboard engine cleaner and running more efficiently.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat container does the oil come in?\u003c\/strong\u003e Both the Quart and Gallon sizes of Sierra 18-9420 10W30 4-Stroke oil are packaged in bottles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra product?\u003c\/strong\u003e Yes, this is genuine Sierra-branded 10W30 4-Stroke Marine Outboard Engine Oil, part number 18-9420.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bottles come in an order?\u003c\/strong\u003e Each order is for a single bottle, available as either a Quart or a Gallon of Sierra 18-9420 10W30 4-Stroke oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this oil work for cold-weather starting?\u003c\/strong\u003e The 10W-30 grade's low-temperature viscosity is designed to offer better cold starting compared to heavier grades.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988059336923,"sku":"SIE-18-9420-2","price":11.14,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":48988059369691,"sku":"SIE-18-9420-3","price":41.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9420-2_NEW__03649.1771624653.500.750.jpg?v=1785188963"},{"product_id":"sierra-synthetic-blend-mercruiser-sterndrive-engine-oil-25w-40-fc-w-available-in-quart-and-5-quart","title":"Sierra Synthetic Blend Mercruiser Sterndrive Engine Oil - Available in Quart to 5 Quart","description":"\u003cp\u003eSierra Synthetic Blend Mercruiser Sterndrive Engine Oil is a 25W-40 FC-W synthetic blend formulated specifically for Mercruiser sterndrive engines. It is NMMA FC-W Certified and meets API-SL requirements, giving boat owners a marine-rated lubricant built to handle the friction, heat, and load conditions that sterndrive engines see on the water. The synthetic blend base stock resists thermal breakdown under high RPM operation, extreme temperatures, and sustained loads, helping protect internal engine components from wear during long runs and hard use.\u003c\/p\u003e\u003cp\u003eThis oil delivers strong friction reduction and advanced lubrication to reduce wear on pistons, bearings, and other critical internal parts. Because sterndrive engines run at sustained high RPM and often under heavier load than automotive engines, using an oil formulated and certified for marine sterndrive service helps maintain proper lubrication and extend engine life. It is intended for use as directed in Mercruiser sterndrive engine oil change service.\u003c\/p\u003e\u003cp\u003eThis is a single product line offered in two package sizes to match routine oil changes or larger service jobs. Both sizes contain the same 25W-40 FC-W synthetic blend formulation.\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 18-9440\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity Grade:\u003c\/strong\u003e 25W-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e NMMA FC-W Certified, API-SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormulation:\u003c\/strong\u003e Synthetic blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser sterndrive engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercruiser Cross-Reference:\u003c\/strong\u003e 92-883724K01 (Quart), 92-883725K01 (5 Quart)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Quart (946 ml), 5 Quart (4.7 L)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the Quart size for a single oil change or for topping off between services. Choose the 5 Quart size to cover a full sterndrive oil change in one container without buying multiple bottles, or to keep a larger reserve on hand for routine maintenance.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does this Sierra Mercruiser sterndrive engine oil come in?\u003c\/strong\u003e This Sierra Synthetic Blend Mercruiser Sterndrive Engine Oil (part number 18-9440) is available in a Quart (946 ml) bottle and a 5 Quart (4.7 L) container, so buyers can pick a single-quart top-off size or a larger container sized for a full oil change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil certified for marine engine use?\u003c\/strong\u003e Yes, the 25W-40 formulation is NMMA FC-W Certified and meets API-SL requirements, both marks that confirm it is rated for marine sterndrive engine service rather than general automotive use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat viscosity grade is Sierra part number 18-9440?\u003c\/strong\u003e It is a 25W-40 viscosity grade synthetic blend, formulated to hold up under the high RPM operation and heat load typical of Mercruiser sterndrive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Mercruiser part numbers does this oil cross-reference?\u003c\/strong\u003e The Quart size cross-references Mercruiser number 92-883724K01, and the 5 Quart size cross-references Mercruiser number 92-883725K01.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a fully synthetic oil?\u003c\/strong\u003e No, it is a synthetic blend rather than a full synthetic, combining synthetic base stock with conventional oil to resist thermal breakdown under extreme temperature and load conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much oil do I need for a full sterndrive oil change?\u003c\/strong\u003e For a complete oil change, the 5 Quart container of Sierra 18-9440 is sized to cover a full service in one package rather than requiring multiple individual quarts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this oil protect against engine wear at high RPM?\u003c\/strong\u003e Yes, the synthetic blend formulation is designed to reduce friction and protect internal engine components from wear during high RPM operation, extreme temperatures, and sustained loads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat container does this oil come in?\u003c\/strong\u003e Both the Quart and 5 Quart sizes of Sierra 18-9440 are packaged in bottles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil intended for automotive engines or marine engines?\u003c\/strong\u003e This oil is formulated for Mercruiser sterndrive engines, a marine application, rather than general automotive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I choose between the Quart and 5 Quart size?\u003c\/strong\u003e Pick the Quart size for topping off oil levels or a small partial change, and choose the 5 Quart size when performing a complete sterndrive oil change or when stocking up for routine maintenance.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988059631835,"sku":"SIE-18-9440-2","price":12.41,"currency_code":"USD","in_stock":true},{"title":"5 Quart","offer_id":48988059664603,"sku":"SIE-18-9440-4","price":54.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9440-2_NEW__21119.1771974835.500.750.jpg?v=1785189113"},{"product_id":"sierra-18-0232-cover-gasket-replaces-mercury-27-703351-fits-3-cylinder-outboards-package-of-2","title":"Sierra Cover Gasket 18-0232 for Yamaha Outboard Engines, Replaces 27-81031M","description":"\u003cp\u003eThe Sierra 18-0232 is a cover gasket built for Yamaha outboard engines. It seals the mating surface between the engine cover and the block, preventing oil, coolant, or air leaks at that joint and helping the covered components run reliably. As a direct-fit replacement, it is engineered to match the exact profile and thickness of the original equipment gasket it replaces, so it installs without modification and restores a proper seal after the old gasket has hardened, torn, or compressed with age.\u003c\/p\u003e\u003cp\u003eThis gasket is manufactured by Sierra, a long-established supplier of marine engine parts, and is cross-referenced to the OEM Yamaha part number it replaces. It ships as a single gasket and is lightweight at just 0.01 pounds, reflecting its thin, flat construction typical of cover gaskets. Because gaskets are wear items that lose their sealing ability once removed or over time, keeping a replacement like the 18-0232 on hand makes routine cover maintenance straightforward.\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 18-0232\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Cover Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Yamaha outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 27-81031M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999973788\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00030999973788\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Yamaha outboard engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003e27-81031M\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0232 cover gasket fit?\u003c\/strong\u003e The Sierra 18-0232 cover gasket is designed for Yamaha outboard engines and installs in place of the original cover gasket without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0232 replace OEM part 27-81031M?\u003c\/strong\u003e Yes, the Sierra 18-0232 is a direct replacement for OEM Yamaha part 27-81031M and is built to the same fit and seal profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0232 cover gasket weigh?\u003c\/strong\u003e The Sierra 18-0232 cover gasket weighs 0.01 pounds, consistent with its thin, flat gasket construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0232 sold as a single gasket or in a multi-pack?\u003c\/strong\u003e The Sierra 18-0232 is sold as a single cover gasket, with one item per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0232 cover gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0232 cover gasket is 030999973788, with a corresponding GTIN of 00030999973788.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a cover gasket like the 18-0232 actually do?\u003c\/strong\u003e A cover gasket seals the joint between an engine cover and the block it mounts to, preventing leaks at that surface; the 18-0232 performs this function on applicable Yamaha outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0232 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-0232 is a Sierra aftermarket gasket manufactured to replace OEM Yamaha part 27-81031M, not an OEM-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the 18-0232 cover gasket be replaced?\u003c\/strong\u003e A cover gasket such as the 18-0232 should be replaced any time the cover it seals is removed, or if it shows signs of hardening, tearing, or leaking.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-0232 gasket be reused after removal?\u003c\/strong\u003e No, cover gaskets including the 18-0232 are designed for one-time use and should be replaced with a new gasket any time the cover is taken off.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the package with the Sierra 18-0232?\u003c\/strong\u003e The package contains one Sierra 18-0232 cover gasket and no additional hardware or components.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988059730139,"sku":"SIE-18-0232","price":1.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0232_lg__04249.1558118069.500.750.jpg?v=1785188635"},{"product_id":"sierra-tc-w3-premium-blend-2-cycle-outboard-engine-oil-available-in-pint-quart-gallon","title":"Sierra Premium Blend TC-W3 2-Cycle Outboard Engine Oil - Available in Pint, Quart, and Gallon Sizes","description":"\u003cp\u003eSierra Premium Blend TC-W3 2-Cycle Outboard Engine Oil is a marine-grade lubricant formulated for two-stroke outboard engines that run on oil injection systems or pre-mix fuel. The TC-W3 premium blend is designed and manufactured to meet and exceed engine manufacturer warranty requirements, giving boaters a dependable oil for routine engine maintenance and fuel mixing.\u003c\/p\u003e\u003cp\u003eThe formulation is built to reduce ring sticking, control deposit formation, and prevent exhaust port blockage, all common failure points in two-stroke marine engines that run on low-quality oil. By reducing wear on critical internal components, the oil helps extend engine life and maintain consistent performance across a boating season. It is packaged in a bottle for straightforward pouring into an oil injection reservoir or fuel mix container.\u003c\/p\u003e\u003cp\u003eThis oil is offered as a product line across three container sizes, from a single pint for topping off to a full gallon for owners who run through oil quickly or maintain multiple engines. All sizes share the same TC-W3 premium blend formulation; only the container volume changes between options.\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 18-9500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 2-Cycle Outboard Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormulation:\u003c\/strong\u003e TC-W3 Premium Blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Oil injection systems or pre-mix fuel in 2-stroke outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlash Point:\u003c\/strong\u003e 74 degrees Celsius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Pint, Quart, Gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePint Case Pack:\u003c\/strong\u003e 12 per case (473 ml each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuart Case Pack:\u003c\/strong\u003e 12 per case (946 ml each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGallon Case Pack:\u003c\/strong\u003e 6 per case (3.78 L each)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the container size that matches how much oil you go through. The Pint is suited to topping off an oil injection reservoir or mixing small batches of fuel. The Quart covers routine maintenance and mid-season top-offs. The Gallon is intended for owners mixing larger volumes of fuel, running multiple two-stroke engines, or wanting fewer repurchases across a season. All three sizes contain the identical TC-W3 premium blend formulation.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra 18-9500 oil designed for?\u003c\/strong\u003e Sierra 18-9500 is a TC-W3 Premium Blend 2-cycle oil formulated for outboard engines that use an oil injection system or run on pre-mixed fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich sizes does this oil come in?\u003c\/strong\u003e The Sierra 18-9500 line is available in a Pint (473 ml), a Quart (946 ml), and a Gallon (3.78 L), all packaged in bottles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which size to buy?\u003c\/strong\u003e Pick the Pint for topping off an oil injection reservoir or small fuel mix batches, the Quart for routine maintenance, and the Gallon if you run multiple two-stroke engines or mix fuel in larger volumes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil suitable for pre-mix fuel or only oil injection systems?\u003c\/strong\u003e Sierra 18-9500 Premium Blend TC-W3 oil is ideal for either use, working in oil injection systems as well as pre-mix fuel applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does TC-W3 mean?\u003c\/strong\u003e TC-W3 is the oil specification this Sierra premium blend is formulated to, indicating it is designed and manufactured to meet and exceed engine manufacturers' warranty requirements for two-stroke marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this oil help with ring sticking or carbon deposits?\u003c\/strong\u003e Yes, the Sierra 18-9500 Premium Blend is formulated to reduce ring sticking, deposit formation, and exhaust port blockage in two-stroke outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the flash point of this oil?\u003c\/strong\u003e The flash point of Sierra 18-9500 Premium Blend TC-W3 oil is 74 degrees Celsius.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bottles come in a case of the Pint or Quart size?\u003c\/strong\u003e Both the Pint and Quart sizes of Sierra 18-9500 are packed 12 bottles per case, while the Gallon size is packed 6 bottles per case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes using this oil affect engine longevity?\u003c\/strong\u003e The Sierra 18-9500 formulation is designed to reduce wear on critical engine components, which helps extend engine life and maintain performance over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the container material or packaging the same across all sizes?\u003c\/strong\u003e Yes, every size in the Sierra 18-9500 line, Pint, Quart, and Gallon, is packaged in a bottle; only the volume changes between options.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Pint","offer_id":48988061335771,"sku":"SIE-18-9500-1","price":8.1,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":48988061368539,"sku":"SIE-18-9500-2","price":12.49,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":48988061401307,"sku":"SIE-18-9500-3","price":41.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9500-3_576c2636-ac8a-4f3e-b6f9-d59d0b1b4795.png?v=1784938574"},{"product_id":"exhaust-elbow-gasket-18-0305-1-oem-96108-for-crusader-7-4l-454-gm-big-block-v8-manifolds-18-1929-18-1933","title":"Sierra Exhaust Manifold Elbow Gasket 18-0305-1, Replaces 96108, for Crusader 18-1929\/18-1933 Manifolds","description":"\u003cp\u003eThis Sierra Exhaust Manifold Elbow Gasket, part number 18-0305-1, is the gasket that seals the connection between the exhaust manifold and the exhaust elbow on compatible Crusader marine engine setups. It is designed for use with Crusader exhaust manifolds 18-1929 (Starboard) and 18-1933 (Port), forming the seal that keeps exhaust gases and cooling water properly contained at the manifold-to-elbow joint. This gasket is also included as a component of the 18-8515 mounting kit, so buyers assembling or servicing that kit already have this gasket on hand and do not need to order it separately unless replacing a worn unit individually.\u003c\/p\u003e\u003cp\u003eKeeping this gasket in good condition is important for preventing exhaust leaks and water intrusion at the manifold connection, both of which can lead to reduced engine performance, corrosion, or more serious cooling system issues if left unaddressed. At just 0.02 pounds, it is a lightweight, low-cost component that is inexpensive insurance against a failed seal during routine exhaust system maintenance or manifold 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 18-0305-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282365738\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Crusader Exhaust Manifolds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Reference \/ OEM Number:\u003c\/strong\u003e 96108\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUsed with Crusader Exhaust Manifold 18-1929 (Starboard)\u003c\/li\u003e\n\u003cli\u003eUsed with Crusader Exhaust Manifold 18-1933 (Port)\u003c\/li\u003e\n\u003cli\u003eIncluded in Mounting Kit 18-8515\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e96108\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra part 18-0305-1 used for?\u003c\/strong\u003e It is the elbow gasket that seals the joint between the exhaust manifold and the exhaust elbow, used with Crusader exhaust manifolds 18-1929 and 18-1933.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket fit both the port and starboard manifolds?\u003c\/strong\u003e Yes, gasket 18-0305-1 is used with both the starboard manifold 18-1929 and the port manifold 18-1933.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0305-1 the same gasket included in the 18-8515 mounting kit?\u003c\/strong\u003e Yes, this exact gasket, 18-0305-1, is included as a component of the 18-8515 mounting kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does this gasket cross-reference to?\u003c\/strong\u003e Sierra 18-0305-1 corresponds to OEM number 96108.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this gasket weigh?\u003c\/strong\u003e The 18-0305-1 exhaust elbow gasket weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0305-1 gasket made of?\u003c\/strong\u003e The dossier does not specify the gasket material for 18-0305-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a different gasket for the elbow with the 4 inch outlet?\u003c\/strong\u003e Yes, the elbow with a 4 inch outlet (18-1928) uses a different gasket, 18-0309-1, not 18-0305-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy this gasket separately if I already have the 18-8515 kit?\u003c\/strong\u003e You can order 18-0305-1 individually as a replacement gasket even though it is also included in the 18-8515 mounting kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich manifolds require this specific gasket?\u003c\/strong\u003e Manifolds 18-1929 (starboard) and 18-1933 (port) both use gasket 18-0305-1 at the elbow connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e 18-0305-1 is a Sierra-branded exhaust elbow gasket, not an unbranded aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this gasket?\u003c\/strong\u003e Ordering 18-0305-1 provides the single exhaust elbow gasket component only.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988061466843,"sku":"SIE-18-0305-1","price":9.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0305_lg__58964.1558119547.500.750.jpg?v=1785329158"},{"product_id":"sierra-10w-40-fc-w-semi-synthetic-marine-engine-oil-available-in-quart-gallon","title":"Sierra 10W-40 FC-W Semi-Synthetic Outboard Engine Oil - Available in Quart and Gallon","description":"\u003cp\u003eSierra 10W-40 FC-W Semi-Synthetic Engine Oil is formulated for four-stroke marine outboard engines that demand reliable lubrication under sustained high-load, high-rpm running conditions. Marine outboards work harder than automotive engines on average, spending long stretches at high throttle with limited airflow for cooling, so oil needs stronger film strength and heat resistance to prevent wear. This semi-synthetic blend is built to meet those demands, offering strong detergency to keep internal components clean, anti-wear additives to protect pistons, rings, and bearings, and corrosion protection to guard against the moisture that marine engines are constantly exposed to.\u003c\/p\u003e\u003cp\u003eMeeting the FC-W (Four-Cycle Water-cooled) specification set by NMMA for marine engines, this oil is a suitable choice for scheduled oil changes and top-offs on four-stroke outboards calling for a 10W-40 viscosity grade. It is packaged for the marine aftermarket and sold under the Sierra brand, a long-established name in outboard maintenance parts and fluids.\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 18-9551\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity Grade:\u003c\/strong\u003e 10W-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Type:\u003c\/strong\u003e Semi-Synthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification:\u003c\/strong\u003e FC-W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Four-Stroke Marine Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Quart (946 ml), Gallon (3.785 L)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis oil is available in two package sizes: a Quart for smaller top-offs or single oil changes, and a Gallon for engines requiring larger sump capacity or for stocking up ahead of multiple services. Select the size that matches your engine's oil capacity and how many changes you plan to perform, then order the matching SKU below.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat viscosity grade is Sierra 18-9551 engine oil?\u003c\/strong\u003e It is a 10W-40 viscosity grade oil, formulated as a semi-synthetic blend meeting the FC-W specification for four-stroke marine outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil synthetic or conventional?\u003c\/strong\u003e Sierra 18-9551 10W-40 FC-W oil is a semi-synthetic blend, combining synthetic base stock benefits with conventional oil for four-stroke outboard lubrication.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does FC-W mean on marine engine oil?\u003c\/strong\u003e FC-W (Four-Cycle Water-cooled) is the NMMA certification standard for oils used in four-stroke, water-cooled marine engines; Sierra 18-9551 10W-40 oil meets this specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does this Sierra oil come in?\u003c\/strong\u003e Sierra 18-9551 10W-40 FC-W semi-synthetic oil is sold in a Quart (946 ml) bottle and a Gallon (3.785 L) container, covering both single top-offs and full oil changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know whether to buy the Quart or the Gallon?\u003c\/strong\u003e Choose the Quart if you only need a partial top-off or your outboard's sump takes less than a quart between changes; choose the Gallon if your engine requires more oil per change or you want enough on hand for multiple services of Sierra 18-9551 oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-9551 suitable for all four-stroke outboards?\u003c\/strong\u003e It is intended for four-stroke marine outboard engines specifying a 10W-40 FC-W oil; always confirm your engine manufacturer calls for this viscosity grade and specification before use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this oil be used in stern drive or inboard engines?\u003c\/strong\u003e Sierra 18-9551 10W-40 FC-W semi-synthetic oil is formulated for four-stroke marine outboard engines, not stern drive or inboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this oil protect against corrosion?\u003c\/strong\u003e Yes, Sierra 18-9551 10W-40 FC-W oil includes corrosion protection additives suited to the moisture exposure common in marine engine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-9551 a genuine Sierra product?\u003c\/strong\u003e Yes, this 10W-40 FC-W semi-synthetic oil is sold under the Sierra brand as part number 18-9551.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many quarts are in the gallon container?\u003c\/strong\u003e The Gallon size of Sierra 18-9551 oil holds 3.785 liters, equivalent to 128 fluid ounces, or the equivalent of four quart bottles.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988061597915,"sku":"SIE-18-9551-2","price":10.7,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":48988061630683,"sku":"SIE-18-9551-3","price":42.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9551-3.png?v=1784938604"},{"product_id":"sierra-premium-lower-unit-gear-lube-for-marine-outboards-sterndrives-available-in-10-oz-and-quart-sizes","title":"Sierra Premium Lower Unit Gear Lube 18-9600 - Available in 10 Oz Tube and Quart Bottle","description":"\u003cp\u003eSierra Premium Lower Unit Gear Lube is a GL-5 class gear lubricant formulated for outboard and sterndrive lower units operating in freshwater or saltwater. It is designed to reduce friction and protect gears, bearings, and other gear case components from wear and corrosion during all standard marine applications. The lubricant has a viscosity of 75W-90 or 80W-90, matching the requirements of most marine lower unit and gear case applications, and comes packaged in a plastic bottle for clean, controlled pouring at the fill and vent plugs.\u003c\/p\u003e\u003cp\u003eThis gear lube is part of the Sierra 18-9600 line and is sold in two sizes to match different service needs: a 10 Oz tube sized for topping off or a single small gear case fill, and a Quart bottle sized for a full lower unit gear lube change or keeping extra lubricant on board for routine maintenance. Both sizes share the same formulation, so the choice comes down to how much lubricant the job requires.\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 18-9600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lower Unit Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubricant Class:\u003c\/strong\u003e GL-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity:\u003c\/strong\u003e 75W-90 or 80W-90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Freshwater and saltwater marine applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Use:\u003c\/strong\u003e Reduces friction and protects gears, bearings, and other gear case components; helps prevent corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Form:\u003c\/strong\u003e Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Material:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Bottle\/Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 10 Oz, Quart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury 92-802844Q02 (10 Oz size); Mercury 92-858058Q01 (Quart size)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the 10 Oz tube for a quick top-off or a single small-capacity gear case, or choose the Quart bottle for a complete lower unit gear lube change or to keep a fuller supply on hand. Select the size using the option list on this page; both are the same Sierra 18-9600 Premium Gear Lube formulation.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat class of gear lube is the Sierra 18-9600?\u003c\/strong\u003e The Sierra 18-9600 Premium Lower Unit Gear Lube is a GL-5 class lubricant, suitable for all general marine applications that call for a GL-5 gear oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gear lube be used in saltwater?\u003c\/strong\u003e Yes, Sierra 18-9600 Premium Gear Lube is formulated for use in both freshwater and saltwater marine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra 18-9600 gear lube come in?\u003c\/strong\u003e It is available as a 10 Oz tube or a Quart bottle, both using the same GL-5 formulation, so pick the size based on whether you need a top-off or a full gear lube change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much gear lube do I need for a full lower unit change?\u003c\/strong\u003e A full lower unit gear lube change typically calls for the Quart bottle of Sierra 18-9600, while the 10 Oz tube suits a top-off or a smaller gear case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the viscosity of Sierra Premium Gear Lube?\u003c\/strong\u003e Sierra 18-9600 Premium Gear Lube has a viscosity of 75W-90 or 80W-90.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-9600 gear lube cross-reference to a Mercury part number?\u003c\/strong\u003e The 10 Oz tube corresponds to Mercury 92-802844Q02 and the Quart bottle corresponds to Mercury 92-858058Q01.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat container does the gear lube come in?\u003c\/strong\u003e Sierra 18-9600 Premium Gear Lube is packaged in a plastic bottle or tube, depending on the size selected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gear lube protect against corrosion?\u003c\/strong\u003e Yes, one of its specific uses is helping prevent corrosion in addition to reducing friction and protecting gears, bearings, and other gear case components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-9600 the same as Sierra's synthetic gear lube?\u003c\/strong\u003e No, Sierra 18-9600 is the standard GL-5 gear lube, while Sierra also offers a separate Hi-Performance Synthetic gear lube line under a different part number for buyers wanting a full-synthetic option.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with each size of the Sierra 18-9600 gear lube?\u003c\/strong\u003e Each size is sold as a single container of Sierra Premium Gear Lube: a 10 Oz tube or a Quart bottle, with no additional accessories included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"10 Ounce","offer_id":48988062548187,"sku":"SIE-18-9600-0","price":8.27,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":48988062580955,"sku":"SIE-18-9600-2","price":12.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9600-2_NEW__33049.1753840711.500.750.jpg?v=1785188256"},{"product_id":"sierra-18-0309-1-exhaust-elbow-gasket-oem-96562-for-crusader-603-inboard-exhaust-elbows-18-1928-18-1934-18-1918","title":"Sierra Exhaust Elbow Gasket 18-0309-1, Replaces OE 96562, Fits Exhaust Elbows 18-1928, 18-1934 \u0026 18-1918","description":"\u003cp\u003eThe Sierra 18-0309-1 is an exhaust elbow gasket designed for marine inboard cooling and exhaust systems, sealing the connection at the exhaust elbow to prevent exhaust and water leaks. It is used with Exhaust Elbows 18-1928, 18-1934, and 18-1918, and is also referenced as the elbow gasket for the Sierra 18-1927 4 inch riser and 18-1916 8 inch riser assemblies, which are in turn used with manifolds 18-1933 and 18-1929. This gasket directly replaces OE number 96562, making it a straightforward drop-in for boat owners servicing their exhaust elbow or riser connections.\u003c\/p\u003e\u003cp\u003eA proper gasket seal at this joint is important for preventing raw water or exhaust leaks into the bilge or engine compartment, so replacing a worn or compressed gasket whenever the elbow or riser is removed for service or replacement is standard practice. The gasket is compact, measuring 0.39 x 0.39 x 0.39 inches, and weighs 0.03 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 18-0309-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\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\u003eOEM Cross Reference:\u003c\/strong\u003e 96562\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse with Exhaust Elbows: 18-1928, 18-1934, 18-1918\u003c\/li\u003e\n\u003cli\u003eAlso used as the elbow gasket with Riser 18-1927 (4 inch) and Riser 18-1916 (8 inch)\u003c\/li\u003e\n\u003cli\u003eRisers 18-1927 and 18-1916 are used with Manifolds 18-1933 and 18-1929\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e96562\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat exhaust elbows fit the Sierra 18-0309-1 gasket?\u003c\/strong\u003e The 18-0309-1 gasket is used with Exhaust Elbows 18-1928, 18-1934, and 18-1918.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-0309-1 replace OEM part number 96562?\u003c\/strong\u003e Yes, Sierra 18-0309-1 is a direct replacement for OEM number 96562.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this gasket?\u003c\/strong\u003e The 18-0309-1 exhaust elbow gasket measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0309-1 gasket weigh?\u003c\/strong\u003e It weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gasket be used with an exhaust riser instead of an elbow?\u003c\/strong\u003e Yes, the 18-0309-1 gasket is also specified for use with the Sierra 18-1927 4 inch riser and the 18-1916 8 inch riser.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat manifolds are compatible with the risers that use this gasket?\u003c\/strong\u003e The 18-1927 and 18-1916 risers, which use the 18-0309-1 gasket, are designed for use with Manifolds 18-1933 and 18-1929.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0309-1 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-0309-1 is manufactured and sold under the Sierra brand as a replacement exhaust elbow gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when ordering 18-0309-1?\u003c\/strong\u003e Ordering 18-0309-1 includes one exhaust elbow gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the exhaust elbow gasket be replaced?\u003c\/strong\u003e The 18-0309-1 gasket should be replaced any time the exhaust elbow or riser it seals is removed, since a compressed or worn gasket at this joint can lead to exhaust or water leaks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-0309-1 fit manifolds 18-1933 or 18-1929 directly?\u003c\/strong\u003e The 18-0309-1 gasket is not listed as a direct manifold gasket; it is used with the exhaust elbows and risers that connect to Manifolds 18-1933 and 18-1929.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988062646491,"sku":"SIE-18-0309-1","price":9.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0309_lg__64647.1558119785.500.750.jpg?v=1785188817"},{"product_id":"sierra-18-0320-reed-block-gasket-for-mercury-outboards-replaces-mercury-27-13937-27-139374","title":"Sierra 18-0320 Reed Block Gasket - Cross Reference Mercury 27-13937","description":"\u003cp\u003eThe Sierra 18-0320 is a reed block gasket built for outboard engine service, sealing the mating surface between the reed valve block and the powerhead to maintain proper crankcase compression and prevent air or fuel leaks at the joint. It is manufactured from a glass-based gasket material designed to hold a consistent seal under the heat cycling and vibration typical of outboard operation. Each Sierra gasket is engineered to meet or exceed the quality of the original equipment part it replaces, making it a straightforward direct-fit replacement during a reed block rebuild, powerhead service, or routine maintenance. The 18-0320 is a single-piece gasket supplied as one unit, sized to match the reed block gasket used across a range of Mercury outboard applications that call for this specific part. Because it corresponds to several historical OEM and aftermarket part numbers, it is commonly sourced as a replacement whenever an older reference number is found stamped on the block or listed in a parts diagram. Installers should confirm the old gasket's dimensions and bolt pattern against the 18-0320 before ordering, and always install a new gasket rather than reusing the old one to ensure a proper seal.\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 18-0320\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Reed Block Gasket\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 Multi-coloured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 gasket\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 030999873101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e GLM 32220, Mallory 9-60061, Mercury 27-13937-6, 27-139374, 27-139372, 27-13937\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 32220\u003c\/li\u003e\n\u003cli\u003eMallory 9-60061\u003c\/li\u003e\n\u003cli\u003eMercury 27-13937-6\u003c\/li\u003e\n\u003cli\u003eMercury 27-139374\u003c\/li\u003e\n\u003cli\u003eMercury 27-139372\u003c\/li\u003e\n\u003cli\u003eMercury 27-13937\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0320 used for?\u003c\/strong\u003e The Sierra 18-0320 is a reed block gasket that seals the joint between the reed valve block and the powerhead on applicable outboard engines, maintaining proper crankcase sealing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0320 gasket the same as Mercury 27-13937?\u003c\/strong\u003e Yes, the Sierra 18-0320 Reed Block Gasket is a direct cross-reference for Mercury 27-13937, 27-13937-6, 27-139374, and 27-139372, along with GLM 32220 and Mallory 9-60061.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0320 reed block gasket made from?\u003c\/strong\u003e It is made from a glass-based gasket material designed to hold a consistent seal under engine heat and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets are included with part number 18-0320?\u003c\/strong\u003e One reed block gasket is included per unit count for the Sierra 18-0320.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0320 gasket weigh?\u003c\/strong\u003e It weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-0320 meet original equipment quality?\u003c\/strong\u003e Sierra states this gasket meets or exceeds the quality of the original equipment part it replaces, making the 18-0320 a reliable equivalent to OEM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I reuse my old reed block gasket instead of installing the 18-0320?\u003c\/strong\u003e No, a gasket should not be reused once removed; installing a new Sierra 18-0320 ensures a proper seal at the reed block joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-0320 gasket?\u003c\/strong\u003e The gasket has a multi-coloured appearance, consistent with its glass-based gasket material.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0320 an aftermarket or genuine Mercury part?\u003c\/strong\u003e The 18-0320 is a Sierra-brand aftermarket gasket engineered as a cross-reference equivalent to the Mercury 27-13937 series parts, not a Mercury-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0320 reed block gasket?\u003c\/strong\u003e The UPC is 030999873101.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988062777563,"sku":"SIE-18-0320","price":3.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0320_lg__55148.1637358372.500.750.jpg?v=1785188626"},{"product_id":"sierra-hi-performance-synthetic-blend-lower-unit-gear-lube-available-in-10-oz-to-5-gallon-plus-pump-kit","title":"Sierra Hi-Performance Synthetic Gear Lube - Available in 10 Oz Tube to 5 Gallon","description":"\u003cp\u003eSierra Hi-Performance Gear Lube is a synthetically blended marine gear lubricant engineered to reduce operating friction and protect gears, bearings, and other lower unit components. It is GL-5 rated and formulated for high performance and high load operating conditions in both outboard and I\/O lower units, designed to surpass the performance of the original equipment Hi-Performance gear lubricants it replaces. The same synthetic blend chemistry is offered across four package sizes so boaters and technicians can buy the format that matches the job at hand: a 10 ounce tube for a small top-off, a quart bottle sized for a standard lower-unit gear case change, a quart pump kit that bundles the gear lube with a pump and adapters for cleaner, no-mess application, and a 5 gallon container for shops and high-volume service work. The quart size is built to replace Mercury (Quicksilver) Hi-Performance Blend, OMC (System Matched) Ultra-HPF Blend, and Yamaha (Yamalube) LUB-GEARL-11-00 gear lubricants. Whichever size is selected, the lubricant meets GL-5\/SAE 20W viscosity requirements for demanding marine gear case service.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-9650\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lower Unit Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity Rating:\u003c\/strong\u003e GL-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE Viscosity Grade:\u003c\/strong\u003e 20W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic Blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Form:\u003c\/strong\u003e Liquid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e High performance and high load outboard and I\/O lower units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury 92-858064Q01 (Quart size), Mercury 92-858008Q01 (5 Gallon size)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 10 Ounce Tube, Quart, Quart Pump Kit, 5 Gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis line is sold by Size. Pick the 10 Ounce Tube for topping off a lower unit between changes, the Quart for a complete standard lower-unit gear case fill, the Quart Pump Kit if you want the gear lube packaged with a pump and adapters for a cleaner fill, or the 5 Gallon container for shops and boaters servicing multiple units.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra Hi-Performance Gear Lube used for?\u003c\/strong\u003e It is a synthetic blend marine gear lubricant used in outboard and I\/O lower units, where it reduces operating friction and protects gears, bearings, and other gear case components under high performance and high load conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gear lube GL-5 rated?\u003c\/strong\u003e Yes, Sierra Hi-Performance Gear Lube is GL-5 rated with an SAE 20W viscosity grade, meeting the specification level required for demanding marine gear case applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich size should I buy for a lower unit service?\u003c\/strong\u003e For a full lower-unit gear case change, the Quart size is the standard fill volume; use the 10 Ounce Tube only for topping off, and choose the 5 Gallon container if you are servicing multiple units or run a shop.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Quart Pump Kit include?\u003c\/strong\u003e The Quart Pump Kit (SIE-18-9650-2QP) bundles a quart of Sierra Hi-Performance Gear Lube with a pump and adapters, allowing the gear case to be filled without a separate application tool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gear lube replace Mercury Hi-Performance gear lubricant?\u003c\/strong\u003e Yes, the Quart size gear lube is built to replace Mercury (Quicksilver) Hi-Performance Blend, and the Mercury OEM number it replaces is 92-858064Q01.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a cross-reference number for the 5 Gallon size?\u003c\/strong\u003e The 5 Gallon container of Sierra Hi-Performance Gear Lube replaces Mercury 92-858008Q01.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gear lube also replace OMC or Yamaha gear lubricants?\u003c\/strong\u003e The Quart size is designed to replace OMC (System Matched) Ultra-HPF Blend and Yamaha (Yamalube) LUB-GEARL-11-00 in addition to the Mercury equivalent.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra Hi-Performance Gear Lube synthetic?\u003c\/strong\u003e It is a synthetically blended formulation, not a conventional mineral gear oil, which is part of how it reduces operating friction versus standard gear lubricants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gear lube be used in both outboard and I\/O lower units?\u003c\/strong\u003e Yes, Sierra Hi-Performance Gear Lube is formulated for use in high performance and high load operating conditions in both outboard and I\/O lower units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 10 Ounce Tube packaged?\u003c\/strong\u003e The 10 Ounce size ships as a tube, sized for topping off a gear case rather than a full fluid change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM or aftermarket gear lube?\u003c\/strong\u003e Sierra Hi-Performance Gear Lube is an aftermarket formulation engineered to surpass the performance of the original equipment Hi-Performance gear lubricants it cross-references to, such as the Mercury 92-858064Q01 and 92-858008Q01 equivalents.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the Quart Pump Kit?\u003c\/strong\u003e The SIE-18-9650-2QP kit contains one quart of Sierra Hi-Performance Gear Lube along with a pump and the adapters needed to apply it to a lower unit gear case.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"10 Ounce","offer_id":48988062810331,"sku":"SIE-18-9650-0","price":10.91,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":48988062843099,"sku":"SIE-18-9650-2","price":14.99,"currency_code":"USD","in_stock":true},{"title":"Quart Pump Kit","offer_id":48988062875867,"sku":"SIE-18-9650-2QP","price":30.62,"currency_code":"USD","in_stock":true},{"title":"5 Gallon","offer_id":48988062908635,"sku":"SIE-18-9650-5","price":243.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/118-9650-2_NEW__20678.1753840710.500.750.jpg?v=1785189108"},{"product_id":"thermostat-gasket-for-mercury-outboards-replaces-oem-27-14318-2-27-14318-3-mpn-118-0323","title":"Sierra Thermostat Gasket 18-0323 for Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-0323 is a thermostat gasket engineered for Mercury outboard engines. It seats between the thermostat housing and the engine block or cylinder head, creating the seal that keeps the cooling system's water flow contained and prevents leaks at the thermostat housing joint. Over time, factory gaskets can compress, harden, or tear, which allows water to seep past the housing and can lead to overheating or coolant loss; replacing the gasket with the Sierra 18-0323 restores a tight seal at this connection point.\u003c\/p\u003e\u003cp\u003eThis is a small, single-use component intended to be installed whenever the thermostat housing is opened, whether for a thermostat replacement, inspection, or general cooling system maintenance on a Mercury outboard. Keeping a spare on hand is useful for any outboard owner who services their own cooling system, since the gasket should be replaced rather than reused each time the housing is removed.\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 18-0323\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873125\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0323 used for?\u003c\/strong\u003e It is a thermostat gasket that seals the thermostat housing on Mercury outboard engines, preventing water from leaking past the housing joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the Sierra 18-0323 fit?\u003c\/strong\u003e The Sierra 18-0323 thermostat gasket is designed for use on Mercury outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0323 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-0323 is manufactured and sold under the Sierra brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0323 gasket weigh?\u003c\/strong\u003e The Sierra 18-0323 thermostat gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the package for the 18-0323?\u003c\/strong\u003e The Sierra 18-0323 is sold as a single thermostat gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the thermostat gasket on my Mercury outboard?\u003c\/strong\u003e Any time the thermostat housing on a Mercury outboard is removed, such as for a thermostat replacement or cooling system inspection, the gasket underneath it, like the Sierra 18-0323, should be replaced rather than reused since it will not reseal reliably once disturbed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan a worn thermostat gasket cause overheating?\u003c\/strong\u003e A compressed or torn thermostat housing gasket can allow water to leak past the seal, which can reduce cooling efficiency; the Sierra 18-0323 replaces that gasket to restore a proper seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0323 gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0323 thermostat gasket is 030999873125.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988062941403,"sku":"SIE-18-0323","price":2.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0323_lg__19292.1558120597.500.750.jpg?v=1785329185"},{"product_id":"sierra-18-9690-10w-30-fc-w-full-synthetic-marine-engine-oil-available-in-quart-and-gallon","title":"Sierra 10W-30 Full Synthetic Marine Engine Oil - Available in Quart and Gallon Sizes","description":"\u003cp\u003eSierra 10W-30 Full Synthetic Marine Engine Oil is a special blend of synthetic base oil and a balanced additive system engineered specifically for 4-stroke outboard and sterndrive engines. The formula exceeds FC-W requirements and is NMMA FC-W Certified as well as API-SL rated, making it suitable across outboard and sterndrive applications alike.\u003c\/p\u003e\u003cp\u003eThe synthetic base stock delivers faster lubrication at startup in low temperatures, so critical engine components get protected oil flow sooner on cold mornings. At the other end of the temperature range, the formula holds up under high heat, maintaining film strength and protection during sustained running. A balanced additive package gives the oil greater resistance to oxidation, which translates to lower oil consumption over the service interval and more consistent protection between changes.\u003c\/p\u003e\u003cp\u003eThis oil is offered as a single product line across two container sizes so boat owners can buy the right quantity for their engine's oil capacity and change interval. The Quart size (946 ml) suits smaller top-offs or engines with lower oil capacities, while the Gallon size is a more economical option for full oil changes or engines that require larger fill volumes. Both sizes contain the same 10W-30 full synthetic formulation.\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 18-9690\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 10W-30 Full Synthetic Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity Grade:\u003c\/strong\u003e 10W-30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e NMMA FC-W Certified, API-SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e 4-stroke outboard and sterndrive engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type:\u003c\/strong\u003e Bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 1 Quart (946 ml), 1 Gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC (Quart):\u003c\/strong\u003e 808282184353\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC (Gallon):\u003c\/strong\u003e 808282184360\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis oil is sold in two sizes on one product line: Quart (946 ml) for smaller top-offs and Gallon for full oil changes or larger-capacity engines. Choose the Quart for topping off between changes or for engines with small oil capacities, and choose the Gallon for a complete oil change or to keep a larger reserve on hand. Both sizes are the same 10W-30 full synthetic formulation, so the choice comes down to the volume you need.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size options does Sierra 10W-30 Synthetic Marine Engine Oil come in?\u003c\/strong\u003e Sierra 10W-30 Full Synthetic Marine Engine Oil is available in two sizes: a 1 Quart (946 ml) bottle and a 1 Gallon container, both containing the same full synthetic formulation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this oil certified for marine engines?\u003c\/strong\u003e Yes, Sierra 10W-30 Full Synthetic Marine Engine Oil is NMMA FC-W Certified and rated API-SL, meeting the certification standard required for 4-stroke outboard and sterndrive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is this oil designed for?\u003c\/strong\u003e This 10W-30 full synthetic formula is formulated specifically for 4-stroke outboard and sterndrive engine technology and is recommended for use in both outboard and sterndrive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I decide between the Quart and Gallon size?\u003c\/strong\u003e Choose the Quart (946 ml) of Sierra 10W-30 Synthetic Marine Oil for topping off oil levels or for engines with smaller oil capacities, and choose the Gallon size for a full oil change or to keep a larger supply on hand; both sizes are the identical formulation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this oil perform well in cold weather starts?\u003c\/strong\u003e Yes, the synthetic base oil in this Sierra 10W-30 blend offers faster lubrication at startup in low temperatures, helping protect engine components sooner on cold starts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does this oil handle high engine temperatures?\u003c\/strong\u003e Sierra 10W-30 Full Synthetic Marine Engine Oil provides excellent protection at high temperatures thanks to its balanced additive system and synthetic base oil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this oil reduce oil consumption between changes?\u003c\/strong\u003e The balanced additive system in this 10W-30 synthetic oil gives greater resistance to oxidation, which results in lower oil consumption compared to a non-synthetic formulation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full synthetic oil or a blend?\u003c\/strong\u003e Sierra 18-9690 is a full synthetic marine engine oil, using a special blend of synthetic base oil combined with a balanced additive system that exceeds FC-W requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat container does the Quart size come in?\u003c\/strong\u003e The Quart size of Sierra 10W-30 Full Synthetic Marine Engine Oil (946 ml) is packaged in a bottle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this oil in a 2-stroke engine?\u003c\/strong\u003e No, Sierra 10W-30 Full Synthetic Marine Engine Oil is formulated for 4-stroke outboard and sterndrive engine technology, not 2-stroke applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the viscosity grade of this Sierra marine oil?\u003c\/strong\u003e This product is a 10W-30 viscosity grade full synthetic marine engine oil.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Quart","offer_id":48988062974171,"sku":"SIE-18-9690-2","price":17.32,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":48988063006939,"sku":"SIE-18-9690-3","price":63.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9690-3.png?v=1784938603"},{"product_id":"sierra-18-0324-carburetor-to-manifold-gasket-for-mercury-outboards-replaces-mercury-27-15172-3","title":"Sierra 18-0324 Carburetor to Manifold Gasket - Replaces Mercury 27-151724, 27-15172-3, 27-93214","description":"\u003cp\u003eThe Sierra 18-0324 is a carburetor to manifold gasket for Mercury outboard engines, designed to create a reliable seal at the joint between the carburetor and the intake manifold. This round gasket is manufactured to meet or exceed the fit, form, and function of the original equipment part it replaces, giving boat owners and marine technicians a dependable option for carburetor service and rebuild work. Sealing this joint properly is important for maintaining correct air-fuel mixture and preventing vacuum or air leaks that can cause rough idling, hesitation, or hard starting.\u003c\/p\u003e\u003cp\u003eThe Sierra 18-0324 cross-references directly to Mercury OEM numbers 27-151724, 27-15172-3, 27-15172, and 27-93214, and is also interchangeable with GLM 32770 and Mallory 9-60048, making it easy to source as a replacement no matter which part number appears on your existing gasket or repair manual. It is a lightweight, single-use gasket intended to be installed once and replaced whenever the carburetor is removed for service, ensuring a fresh, leak-free seal each time the joint is broken.\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 18-0324\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Carburetor to Manifold Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873132\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury 27-151724, 27-15172-3, 27-15172, 27-93214\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso Interchangeable With:\u003c\/strong\u003e GLM 32770, Mallory 9-60048\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned as a direct cross-reference replacement for Mercury outboard carburetor to manifold gasket applications identified by Mercury part numbers 27-151724, 27-15172-3, 27-15172, and 27-93214.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 27-151724\u003c\/li\u003e\n\u003cli\u003eMercury 27-15172-3\u003c\/li\u003e\n\u003cli\u003eMercury 27-15172\u003c\/li\u003e\n\u003cli\u003eMercury 27-93214\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0324 gasket fit?\u003c\/strong\u003e The Sierra 18-0324 is a carburetor to manifold gasket for Mercury outboard engines, cross-referencing Mercury part numbers 27-151724, 27-15172-3, 27-15172, and 27-93214.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0324 the same as Mercury 27-151724?\u003c\/strong\u003e Yes, the Sierra 18-0324 carburetor to manifold gasket directly cross-references Mercury 27-151724, along with Mercury 27-15172-3, 27-15172, and 27-93214.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the 18-0324 carburetor gasket?\u003c\/strong\u003e It is a round gasket, matching the shape of the carburetor to manifold joint it seals on Mercury outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0324 weigh?\u003c\/strong\u003e The Sierra 18-0324 carburetor to manifold gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0324 interchangeable with GLM or Mallory gaskets?\u003c\/strong\u003e Yes, in addition to its Mercury cross-references, the Sierra 18-0324 is also interchangeable with GLM 32770 and Mallory 9-60048.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0324 a genuine Mercury part or an aftermarket replacement?\u003c\/strong\u003e The 18-0324 is a Sierra aftermarket gasket manufactured to meet or exceed the quality of the original Mercury equipment it replaces, rather than a genuine Mercury-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-0324 gasket made of?\u003c\/strong\u003e A specific gasket material is not published for the Sierra 18-0324; it is engineered to provide a reliable seal between the carburetor and intake manifold on applicable Mercury outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box when I order the 18-0324?\u003c\/strong\u003e Ordering the Sierra 18-0324 gets you one carburetor to manifold gasket for Mercury outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the 18-0324 is the right gasket for my carburetor rebuild?\u003c\/strong\u003e Check your old gasket or parts diagram for Mercury number 27-151724, 27-15172-3, 27-15172, or 27-93214 (or GLM 32770 \/ Mallory 9-60048); any of these match the Sierra 18-0324.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0324 gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0324 carburetor to manifold gasket is 030999873132.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988064448731,"sku":"SIE-18-0324","price":1.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0324_lg__55063.1558120667.500.750.jpg?v=1785188365"},{"product_id":"sierra-18-0327-water-pump-gasket-replaces-omc-volvo-penta-3853342-mallory-27-33956-mercruiser-volvo-penta-omc","title":"Sierra 18-0327 Water Pump Gasket, Interchanges with OMC\/Volvo Penta 3853342, GLM 31350, Mallory 27-33956","description":"\u003cp\u003eThe Sierra 18-0327 is a round water pump gasket used to create a leak-free seal between a marine engine's water pump and its mounting surface. It is manufactured to meet or exceeds the quality of the original equipment part it replaces, making it a reliable choice whenever a water pump is serviced, rebuilt, or replaced and a fresh gasket is needed to restore a proper seal. Each unit ships as a single gasket (1 count) and is backed by a 90-day warranty.\u003c\/p\u003e\u003cp\u003eThe 18-0327 is a direct interchange for several OEM and aftermarket gasket numbers, so it can be ordered using any of the equivalent part numbers a technician or parts counter may reference: GLM 31350, Mallory 27-33956, FI5000200, FI5000219, OMC 3853342, and Volvo Penta 3853342. Confirm the gasket number required by your specific water pump before ordering to ensure correct fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-0327\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873163\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00030999873163\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e GLM 31350, Mallory 27-33956, FI5000200, FI5000219, OMC 3853342, Volvo Penta 3853342\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 31350\u003c\/li\u003e\n\u003cli\u003eMallory 27-33956\u003c\/li\u003e\n\u003cli\u003eFI5000200\u003c\/li\u003e\n\u003cli\u003eFI5000219\u003c\/li\u003e\n\u003cli\u003eOMC 3853342\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3853342\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0327 gasket used for?\u003c\/strong\u003e It seals the mating surface between a marine engine's water pump and its housing, and is used whenever the water pump is replaced or serviced to restore a leak-free seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0327 the same as OMC or Volvo Penta 3853342?\u003c\/strong\u003e Yes, the 18-0327 is a direct interchange for OMC 3853342 and Volvo Penta 3853342, along with GLM 31350, Mallory 27-33956, FI5000200, and FI5000219.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-0327 work in place of a Mallory 27-33956 gasket?\u003c\/strong\u003e Yes, Mallory 27-33956 is one of the listed cross-reference numbers for the Sierra 18-0327 gasket, so it is a suitable direct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the 18-0327 water pump gasket?\u003c\/strong\u003e The Sierra 18-0327 is a round gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0327 gasket weigh?\u003c\/strong\u003e It weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part number 18-0327?\u003c\/strong\u003e You receive one Sierra 18-0327 water pump gasket (unit count of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0327 gasket genuine OEM or aftermarket?\u003c\/strong\u003e The 18-0327 is a Sierra aftermarket gasket manufactured to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty comes with the Sierra 18-0327 gasket?\u003c\/strong\u003e The Sierra 18-0327 water pump gasket carries a 90-day warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0327 gasket made from?\u003c\/strong\u003e The specific gasket material is not published for the 18-0327, but it is built to meet or exceed original equipment quality standards for its application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I find the correct gasket if I only have my old water pump's part number?\u003c\/strong\u003e Check your old gasket or pump documentation against the 18-0327's cross-reference numbers, GLM 31350, Mallory 27-33956, FI5000200, FI5000219, OMC 3853342, and Volvo Penta 3853342, to confirm it is the correct match before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the UPC 030999873163 belong to the Sierra 18-0327?\u003c\/strong\u003e Yes, UPC 030999873163 (GTIN 00030999873163) identifies the Sierra 18-0327 water pump gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988064579803,"sku":"SIE-18-0327","price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0327_lg__86974.1558120737.500.750.jpg?v=1785188282"},{"product_id":"sierra-18-0333-powerhead-base-gasket-replaces-mercury-mariner-27-39401-fits-mercury-mariner-outboards","title":"Sierra Powerhead Base Gasket 18-0333, Replaces Mercury 27-39401, Fits Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThe Sierra 18-0333 is a powerhead base gasket engineered as a direct replacement for Mercury Marine part number 27-39401. It is designed to fit Mercury and Mariner outboard motors, sealing the joint between the powerhead and the driveshaft housing to maintain proper compression and prevent water or exhaust leakage at this critical junction. A powerhead base gasket is a wear item that should be replaced any time the powerhead is removed for service, since reusing an old gasket can compromise the seal and lead to leaks or reduced performance.\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 18-0333\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Powerhead Base Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873224\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury outboard motors\u003c\/li\u003e\n\u003cli\u003eMariner outboard motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-39401\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0333 gasket fit?\u003c\/strong\u003e The Sierra 18-0333 powerhead base gasket is designed to fit Mercury and Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-0333 replace?\u003c\/strong\u003e It replaces Mercury Marine part number 27-39401.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0333 gasket the same as the OEM 27-39401 part?\u003c\/strong\u003e Yes, the Sierra 18-0333 is built to replace Mercury Marine 27-39401 as a direct equivalent for the powerhead base seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0333 gasket weigh?\u003c\/strong\u003e The 18-0333 powerhead base gasket weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the powerhead base gasket installed?\u003c\/strong\u003e The 18-0333 is installed at the base of the powerhead, sealing the joint between the powerhead and the driveshaft housing on Mercury and Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the powerhead base gasket?\u003c\/strong\u003e The 18-0333 should be replaced any time the powerhead is removed from the driveshaft housing for service, since reusing the old gasket can result in a poor seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0333 gasket work on Mariner-branded outboards?\u003c\/strong\u003e Yes, the 18-0333 is designed to fit both Mercury and Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0333 gasket?\u003c\/strong\u003e The Sierra 18-0333 powerhead base gasket carries UPC 030999873224.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0333 a genuine Sierra part or a generic gasket?\u003c\/strong\u003e The 18-0333 is a Sierra-branded powerhead base gasket manufactured to replace Mercury Marine 27-39401.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-0333?\u003c\/strong\u003e Ordering the 18-0333 gets you one Sierra powerhead base gasket sized to replace Mercury Marine 27-39401.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988065005787,"sku":"SIE-18-0333","price":2.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0333_lg__93019.1558121069.500.750.jpg?v=1785188228"},{"product_id":"sierra-18-0334-mounting-plate-to-driveshaft-housing-gasket-for-mercury-outboards-replaces-27-39402","title":"Sierra Mounting Plate to Driveshaft Housing Gasket 18-0334 for Mercury Outboards","description":"\u003cp\u003eThe Sierra 18-0334 is a mounting plate to driveshaft housing gasket designed for Mercury outboard motor applications. This gasket seats between the mounting plate and the driveshaft housing to form a tight, reliable seal at that joint, helping keep water out and lubricants in as the lower unit assembly operates. Replacing a worn, cracked, or compressed gasket at this location during a lower unit rebuild, driveshaft housing removal, or general maintenance service helps restore the original factory seal and prevents water intrusion that can lead to corrosion or gearcase damage over time.\u003c\/p\u003e\u003cp\u003eSierra manufactures this gasket to match the fit and function of the original equipment part it replaces, making it a straightforward drop-in choice when servicing the mounting plate and driveshaft housing area on a Mercury outboard. The part ships as a single gasket, part number 18-0334, and is sold individually for one repair.\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 18-0334\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Mounting Plate to Driveshaft Housing Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 gasket per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873231\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury outboard motors (mounting plate to driveshaft housing joint)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-0334 gasket used for?\u003c\/strong\u003e The Sierra 18-0334 is a mounting plate to driveshaft housing gasket that seals the joint between the mounting plate and the driveshaft housing on a Mercury outboard motor, helping prevent water intrusion at that connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gasket fit Mercury outboards?\u003c\/strong\u003e Yes, part number 18-0334 is designed for the mounting plate to driveshaft housing joint on Mercury outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one package?\u003c\/strong\u003e One Sierra 18-0334 gasket is included per package, sold individually for a single repair or rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0334 gasket weigh?\u003c\/strong\u003e The Sierra 18-0334 mounting plate to driveshaft housing gasket weighs 0.09 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0334 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e 18-0334 is manufactured by Sierra as a replacement part designed to match the fit and function of the original mounting plate to driveshaft housing gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this gasket?\u003c\/strong\u003e This gasket should be replaced any time the mounting plate or driveshaft housing is removed for service, or if the existing gasket is torn, cracked, or compressed and no longer sealing properly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat happens if this gasket fails or is left out during reassembly?\u003c\/strong\u003e A failed or missing gasket at the mounting plate to driveshaft housing joint can allow water to enter the lower unit area, which can lead to corrosion or damage to internal components over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gasket be reused after removal?\u003c\/strong\u003e Gaskets like the Sierra 18-0334 are designed for one-time use; once the mounting plate or driveshaft housing has been separated, installing a new gasket such as this one is recommended to maintain a proper seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0334 gasket made from?\u003c\/strong\u003e Sierra part 18-0334 is a gasket designed to seal the mounting plate to driveshaft housing joint on Mercury outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-0334 gasket straightforward?\u003c\/strong\u003e Yes, the Sierra 18-0334 is a direct-fit gasket that installs between the mounting plate and driveshaft housing during reassembly, following standard gasket installation practice for that joint.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988065333467,"sku":"SIE-18-0334","price":3.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0334_lg__19203.1558121129.500.750.jpg?v=1785188820"},{"product_id":"sierra-18-0345-water-pump-gasket-replaces-chrysler-12-866451-chrysler-inboard-engines","title":"Sierra Water Pump Gasket 18-0345, GLM 37490 Cross Reference, Chrysler Inboard","description":"\u003cp\u003eThe Sierra Water Pump Gasket, part number 18-0345, is a round gasket designed for Chrysler inboard water pump applications. It seals the water pump housing to prevent coolant or raw water leakage at the mating surface, protecting the pump and surrounding engine components from moisture intrusion and pressure loss during operation.\u003c\/p\u003e\u003cp\u003eThis gasket is sold as a single unit and is intended to be replaced any time the water pump housing is removed or serviced, since reusing an old gasket can allow leaks to develop even if it looks intact. It carries the Sierra brand name and part number 18-0345, and cross-references to GLM number 37490, so buyers who know either numbering system can confirm they are ordering the correct gasket for their Chrysler inboard water pump.\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 18-0345\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Pump Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chrysler Inboard Water Pumps and Impellers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282145798\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLM Cross Reference Number:\u003c\/strong\u003e 37490\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eChrysler inboard water pumps\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGLM 37490\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra part number 18-0345?\u003c\/strong\u003e It is a round water pump gasket made by Sierra for Chrysler inboard water pump applications, sold as a single gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes GLM number 37490 match this gasket?\u003c\/strong\u003e Yes, GLM number 37490 cross-references directly to Sierra 18-0345, so either number identifies the same water pump gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0345 gasket weigh?\u003c\/strong\u003e The Sierra 18-0345 water pump gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the Sierra 18-0345 gasket?\u003c\/strong\u003e It is round in shape, matching the mating surface of the Chrysler inboard water pump housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a package of 18-0345?\u003c\/strong\u003e Each package of Sierra 18-0345 contains a single water pump gasket, listed as a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace the gasket every time I remove the water pump?\u003c\/strong\u003e Yes, the Sierra 18-0345 gasket should be replaced whenever the Chrysler inboard water pump housing is removed, since a reused gasket can leak even if it appears undamaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine application is the 18-0345 gasket used for?\u003c\/strong\u003e Sierra 18-0345 is used on Chrysler inboard water pump and impeller assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0345 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-0345 is the Sierra manufacturer part number for this water pump gasket, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0345 gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0345 water pump gasket is 808282145798.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the GLM 37490 number to order this part?\u003c\/strong\u003e Yes, GLM 37490 is the cross-reference number for Sierra 18-0345, so referencing either number will get you the correct gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988065530075,"sku":"SIE-18-0345","price":5.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0345_lg__76482.1558118436.500.750.jpg?v=1785188083"},{"product_id":"sierra-18-0347-valve-cover-gasket-for-mercruiser-470-3-7l-4-cyl-replaces-27-52145-omc-3852693","title":"Sierra Valve Stem Seals (8) 18-0347, Replaces Mercruiser 27-52145, for 4 Cyl. 3.7L Mercruiser 470","description":"\u003cp\u003eThe Sierra 18-0347 is a set of 8 valve stem seals engineered to restore proper oil control at the valve guides on the 4 cyl. 3.7L Mercruiser 470 engine. Valve stem seals wear out over time from heat cycling and contact with the valve stem, letting oil seep down into the combustion chamber or exhaust port; a worn set is a common cause of blue exhaust smoke, fouled plugs, and gradual oil consumption. Sierra manufactures this seal set to meet or exceed original equipment quality, so it installs the same way the original seals did and restores factory sealing performance.\u003c\/p\u003e\u003cp\u003eThis is a set of 8 seals, enough for a complete single-engine valve stem seal replacement job on the applicable Mercruiser 470 engine. Each unit weighs 0.19 pounds. Sierra part number 18-0347 cross-references directly to the Mercury Marine, OMC, GLM, Mallory, and Volvo Penta part numbers listed below, so it is a straightforward like-for-like replacement whether the engine currently carries an original Mercury\/OMC seal or a prior aftermarket equivalent.\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 18-0347\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Valve Stem Seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 8 seals per set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.19 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257347\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 4 cyl. 3.7L Mercruiser 470\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 27-52145, 27-806452, 27-34041; OMC 913277, 912981, 3852693; Volvo Penta 3852693; GLM 32210; Mallory 9-61317\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e4 cyl. 3.7L Mercruiser 470\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 32210\u003c\/li\u003e\n\u003cli\u003eMallory 9-61317\u003c\/li\u003e\n\u003cli\u003eMercruiser 27-52145\u003c\/li\u003e\n\u003cli\u003eMercruiser 27-806452\u003c\/li\u003e\n\u003cli\u003eMercruiser 27-34041\u003c\/li\u003e\n\u003cli\u003eOMC 913277\u003c\/li\u003e\n\u003cli\u003eOMC 912981\u003c\/li\u003e\n\u003cli\u003eOMC 3852693\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3852693\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0347 valve stem seal set include?\u003c\/strong\u003e The Sierra 18-0347 set includes 8 valve stem seals, enough for a full single-engine replacement on the applicable 4 cyl. 3.7L Mercruiser 470 engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does part number 18-0347 fit?\u003c\/strong\u003e Sierra 18-0347 is built for the 4 cyl. 3.7L Mercruiser 470 engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0347 the same as Mercury Marine 27-52145?\u003c\/strong\u003e Yes, Sierra 18-0347 directly cross-references to Mercury Marine 27-52145, along with Mercury Marine 27-806452 and 27-34041, and installs as a direct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-0347 replace OMC valve stem seals?\u003c\/strong\u003e Yes, Sierra 18-0347 cross-references to OMC part numbers 913277, 912981, and 3852693.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this compatible with Volvo Penta engines?\u003c\/strong\u003e Sierra 18-0347 cross-references to Volvo Penta part number 3852693.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seals come in the 18-0347 set?\u003c\/strong\u003e The set contains 8 valve stem seals, matching a full complement for the 4 cyl. 3.7L Mercruiser 470 engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-0347 seal set weigh?\u003c\/strong\u003e The set weighs 0.19 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of worn valve stem seals that 18-0347 addresses?\u003c\/strong\u003e Worn valve stem seals commonly cause blue exhaust smoke, fouled spark plugs, and gradual oil consumption; replacing them with the Sierra 18-0347 set restores proper oil control at the valve guides.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0347 an OEM part or an aftermarket replacement?\u003c\/strong\u003e Sierra 18-0347 is an aftermarket part manufactured to meet or exceed original equipment quality, cross-referenced to the Mercury Marine, OMC, and Volvo Penta OEM numbers it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-0347 also cross-reference to GLM or Mallory part numbers?\u003c\/strong\u003e Yes, Sierra 18-0347 cross-references to GLM 32210 and Mallory 9-61317.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988068610267,"sku":"SIE-18-0347","price":93.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0347_lg__66533.1558118554.500.750.jpg?v=1785188407"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/7134YJMWonL.jpg?v=1785357511","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems.oembed?page=4","provider":"Good Vibes Marina","version":"1.0","type":"link"}