{"title":"Propellers, Drive \u0026 Lower Unit","description":null,"products":[{"product_id":"sierra-18-0021-gear-housing-seal-kit-replaces-yamaha-688-w0001-22-00-fits-c75-c80-c85-c90-90-hp-outboards","title":"Sierra Gear Housing Seal Kit 18-0021, Replaces Yamaha 688-W0001-22-00, Fits C75\/E75\/P75\/C80\/C85\/90\/B90\/C90 Outboards","description":"\u003cp\u003eThe Sierra 18-0021 Gear Housing Seal Kit is a replacement seal set engineered for the lower gear housing of specific Yamaha outboard motors. It replaces the OEM Yamaha part 688-W0001-22-00 and is built to match the fit, form, and function of the original equipment seals it succeeds, making it a direct drop-in choice for a gear housing rebuild or seal replacement job.\u003c\/p\u003e\u003cp\u003eThis kit fits the Yamaha C75 (1994-99), E75 (1995-00), P75 (1996-99), C80 (1997), C85 (1992-96), 90 (1992-02), B90 (1998-99), and C90 (1997-01) outboard models. Because gear housing seals are a wear item exposed to constant water contact and gear lubricant, replacing them at the correct interval, or any time the lower unit is opened up, helps prevent water intrusion into the gear case and lubricant leakage that can lead to bearing and gear damage. The kit is sold under the Sierra brand, a long-established supplier of outboard replacement parts, and is packaged as a complete set so the seals needed for the job are included together rather than sourced individually.\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 18-0021\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gear Housing Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 688-W0001-22-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Yamaha C75 (1994-99), E75 (1995-00), P75 (1996-99), C80 (1997), C85 (1992-96), 90 (1992-02), B90 (1998-99), C90 (1997-01)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.36 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282161132\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha C75 (1994-99)\u003c\/li\u003e\n\u003cli\u003eYamaha E75 (1995-00)\u003c\/li\u003e\n\u003cli\u003eYamaha P75 (1996-99)\u003c\/li\u003e\n\u003cli\u003eYamaha C80 (1997)\u003c\/li\u003e\n\u003cli\u003eYamaha C85 (1992-96)\u003c\/li\u003e\n\u003cli\u003eYamaha 90 (1992-02)\u003c\/li\u003e\n\u003cli\u003eYamaha B90 (1998-99)\u003c\/li\u003e\n\u003cli\u003eYamaha C90 (1997-01)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e688-W0001-22-00\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0021 Gear Housing Seal Kit fit?\u003c\/strong\u003e The 18-0021 kit fits the Yamaha C75 (1994-99), E75 (1995-00), P75 (1996-99), C80 (1997), C85 (1992-96), 90 (1992-02), B90 (1998-99), and C90 (1997-01) outboard models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this seal kit replace?\u003c\/strong\u003e It replaces Yamaha OEM part number 688-W0001-22-00, so it is a direct substitute for that original gear housing seal set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0021 an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket replacement kit made to match the fit, form, and function of the original Yamaha 688-W0001-22-00 gear housing seal set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0021 kit weigh?\u003c\/strong\u003e The Sierra 18-0021 Gear Housing Seal Kit weighs 0.36 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit work on a Yamaha 90 outboard?\u003c\/strong\u003e Yes, the 18-0021 kit is designed to fit the Yamaha 90 (1992-02) outboard, along with the C75, E75, P75, C80, C85, B90, and C90 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the 18-0021 kit?\u003c\/strong\u003e The kit includes the gear housing seals needed to service the lower unit of the covered Yamaha outboard models, sold as a Sierra Gear Housing Seal Kit under part number 18-0021.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the gear housing seals be replaced?\u003c\/strong\u003e Gear housing seals like those in the 18-0021 kit should be replaced any time the lower unit is opened for service, or when water intrusion or gear lubricant leakage is suspected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Yamaha C90 use the same seal kit as the C85?\u003c\/strong\u003e Yes, the Sierra 18-0021 Gear Housing Seal Kit covers both the C85 (1992-96) and the C90 (1997-01), along with several other Yamaha models listed in its fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the UPC for the 18-0021 kit 808282161132?\u003c\/strong\u003e Yes, the Sierra Gear Housing Seal Kit 18-0021 carries UPC 808282161132.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this kit be used on a Yamaha E75 outboard?\u003c\/strong\u003e Yes, the E75 (1995-00) is one of the Yamaha models covered by the Sierra 18-0021 Gear Housing Seal Kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand makes part number 18-0021?\u003c\/strong\u003e Part number 18-0021 is manufactured by Sierra as a Gear Housing Seal Kit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988012151003,"sku":"SIE-18-0021","price":54.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0021_lg__44598.1558119184.500.750.jpg?v=1785188101"},{"product_id":"sierra-18-0110-9-shift-housing-gasket-replaces-evinrude-johnson-324670-fits-evinrude-johnson-outboards-pkg-of-2","title":"Sierra Shift Housing Gasket 18-0110-9, Replaces OMC 324670, Pack of 2, Evinrude\/Johnson","description":"\u003cp\u003eThe Sierra 18-0110-9 Shift Housing Gasket is a replacement gasket for the shift housing on Evinrude\/Johnson outboard motors, sold as a pack of 2. It is built to meet or exceed the fit, form, and function of the original equipment part it replaces, sealing the shift housing to prevent water intrusion and lubricant loss at this joint. Because a worn or damaged shift housing gasket can allow water to enter the gearcase or let gear lubricant leak out, replacing it during a shift housing service, lower unit rebuild, or when a leak is found at this location helps protect the shift mechanism and gearcase from corrosion and lubrication loss.\u003c\/p\u003e\u003cp\u003eEach gasket is manufactured to the same specification as OMC part number 324670, so it installs as a direct replacement without modification. Selling two gaskets per package means a spare is on hand for a future service, or two units can be used across two repairs, reducing the chance of a shop trip for a single part.\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 18-0110-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Shift Housing 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 Evinrude\/Johnson outboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 324670\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282161309\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\u003cp\u003eFits Evinrude\/Johnson outboard motors using OMC shift housing gasket part number 324670.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003e324670\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0110-9 Shift Housing Gasket fit?\u003c\/strong\u003e This gasket fits Evinrude\/Johnson outboard motors that use OMC shift housing gasket part number 324670.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-0110-9 the same as OMC part 324670?\u003c\/strong\u003e Yes, the Sierra 18-0110-9 Shift Housing Gasket is a direct cross reference to OMC part number 324670 and installs in its place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a package of 18-0110-9?\u003c\/strong\u003e The 18-0110-9 is sold as a pack of 2 shift housing gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0110-9 shift housing gasket weigh?\u003c\/strong\u003e Each package of the Sierra 18-0110-9 Shift Housing Gasket weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a shift housing gasket used for?\u003c\/strong\u003e It seals the shift housing on the outboard, and the Sierra 18-0110-9 is designed to prevent water intrusion and lubricant loss at that joint on Evinrude\/Johnson outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the shift housing gasket?\u003c\/strong\u003e Replace the Sierra 18-0110-9 Shift Housing Gasket whenever the shift housing is removed for service or if water or gear lubricant is found leaking at the shift housing joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0110-9 gasket genuine OEM or aftermarket?\u003c\/strong\u003e The 18-0110-9 is a Sierra-manufactured replacement part built to meet or exceed the quality of the original OMC 324670 equipment gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the package for part 18-0110-9?\u003c\/strong\u003e The package contains 2 Sierra 18-0110-9 shift housing gaskets and no other hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-0110-9 gasket work with non-Evinrude\/Johnson outboards?\u003c\/strong\u003e The Sierra 18-0110-9 Shift Housing Gasket is specified for Evinrude\/Johnson outboards using OMC part 324670; fitment outside that application is not specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the UPC 808282161309 belong to the 18-0110-9 gasket?\u003c\/strong\u003e Yes, UPC 808282161309 identifies the Sierra 18-0110-9 Shift Housing Gasket, sold as a pack of 2.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988019720411,"sku":"SIE-18-0110-9","price":6.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/91jhSwWX5uL.jpg?v=1784385379"},{"product_id":"sierra-18-02061-bearing-carrier-shim-0-010-brown-replaces-omc-911681-omc-gearcase-drive","title":"Sierra Bearing Carrier Shim 18-02061,.010 inch, Brown","description":"\u003cp\u003eThe Sierra 18-02061 is a.010 inch bearing carrier shim used to set bearing carrier clearance and preload during gearcase and lower unit assembly on marine outdrive and outboard applications. Shims of this type are installed between the bearing carrier and gearcase housing to fine-tune fit, allowing a technician to dial in the correct gear backlash and bearing preload during a rebuild or gearcase service. The shim is color-coded brown to indicate its.010 inch thickness, making it easy to identify and stack with other shim thicknesses to reach the specified clearance.\u003c\/p\u003e\u003cp\u003eBuilt from metal, the shim is manufactured to consistent, precise tolerances so that stacking multiple shims produces a predictable, accurate total thickness. Sierra manufactures this part to meet or exceed the specifications of the original equipment part it replaces, and it is designed as a drop-in service part for OMC gearcase and drive maintenance and rebuild work.\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 18-02061\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Shim, Bearing Carrier,.010, Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShim Thickness:\u003c\/strong\u003e 0.010 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282228569\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-02061 shim used for?\u003c\/strong\u003e The Sierra 18-02061 is a bearing carrier shim used to set bearing preload and clearance in a gearcase during assembly or rebuild of the lower unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thickness is the 18-02061 shim?\u003c\/strong\u003e It is.010 inch thick, and the brown color coding identifies this thickness so it can be distinguished from other shim sizes during a rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this shim and why does the color matter?\u003c\/strong\u003e This shim is brown, which corresponds to its.010 inch thickness so technicians can quickly grab the correct shim size without measuring each one individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-02061 shim made of?\u003c\/strong\u003e The 18-02061 bearing carrier shim is made of metal, machined to a consistent thickness so it stacks predictably with other shims.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many shims come in a package?\u003c\/strong\u003e The 18-02061 is supplied as a single shim (unit count of one), so multiple units should be ordered if a stack of several thicknesses is needed for a rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-02061 shim weigh?\u003c\/strong\u003e It weighs 0.01 pounds, consistent with its small, thin construction as a single bearing carrier shim.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this shim?\u003c\/strong\u003e The Sierra 18-02061 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-02061 an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-manufactured replacement part built to meet or exceed the specifications of the original equipment bearing carrier shim it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to install a bearing carrier shim like the 18-02061?\u003c\/strong\u003e A bearing carrier shim such as the 18-02061 is installed when servicing or rebuilding a gearcase, to correct bearing preload or carrier clearance after reassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-02061 shim be combined with other shim thicknesses?\u003c\/strong\u003e Yes, the.010 inch 18-02061 shim is designed to be stacked with shims of other thicknesses to reach the exact clearance specification required during a gearcase rebuild.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988058157275,"sku":"SIE-18-02061","price":2.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-02061_lg__96458.1558119779.500.750.jpg?v=1785188027"},{"product_id":"sierra-18-0227-bearing-carrier-shim-0-003-green-replaces-omc-911678-omc-gearcase-drive","title":"Sierra Bearing Carrier Shim.003 Inch Green 18-0227 for OMC Gearcase","description":"\u003cp\u003eThe Sierra 18-0227 is a.003 inch bearing carrier shim, identified by its green color coding, designed for use in gearcase and drive applications. This small precision shim is used to set proper bearing carrier clearance and preload during gearcase assembly or rebuild, helping ensure correct alignment and smooth operation of the drive components it supports. Because bearing carrier shims are supplied in different thicknesses, each is color coded so technicians and boat owners can quickly identify and select the correct thickness for the clearance being set; the 18-0227 is the.003 inch, green-coded option.\u003c\/p\u003e\u003cp\u003eSierra manufactures this shim to meet or exceed the specification of the original equipment part it replaces, making it a reliable choice for gearcase servicing where precise shimming is required. It is sold as a single unit and is compact enough to be stocked alongside other shim thicknesses for use as needed during maintenance.\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 18-0227\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Shim, Bearing Carrier,.003, Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e.003 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Coding:\u003c\/strong\u003e Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Gearcase and Drive Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282228545\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat thickness is the Sierra 18-0227 bearing carrier shim?\u003c\/strong\u003e The Sierra 18-0227 bearing carrier shim measures.003 inch thick and is color coded green so it can be identified quickly among other shim thicknesses.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the green color coding used for on this shim?\u003c\/strong\u003e Green indicates the.003 inch thickness of the 18-0227 bearing carrier shim, letting technicians distinguish it at a glance from other shim thicknesses used in the same gearcase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a bearing carrier shim used for?\u003c\/strong\u003e A bearing carrier shim like the 18-0227 is placed within the gearcase to set proper bearing carrier clearance and preload during assembly or rebuild of the drive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many shims come in one package of part 18-0227?\u003c\/strong\u003e The 18-0227 is sold as a single unit, one shim per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-0227 shim?\u003c\/strong\u003e The 18-0227 bearing carrier shim measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0227 bearing carrier shim weigh?\u003c\/strong\u003e This shim weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0227 shim equivalent to the original equipment part?\u003c\/strong\u003e Sierra states that the 18-0227 shim meets or exceeds the specification of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to select a specific shim thickness for my gearcase rebuild?\u003c\/strong\u003e Yes, bearing carrier shims are supplied in multiple thicknesses, each with its own color code, and the.003 inch thickness needed for a given rebuild determines whether the green 18-0227 or a different thickness is required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of parts does the 18-0227 belong to?\u003c\/strong\u003e The 18-0227 is classified under gearcase and drive parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0227 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-0227 is manufactured by Sierra and backed by the company's standard limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988059435227,"sku":"SIE-18-0227","price":5.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0227__72453.1558117887.500.750.jpg?v=1785188430"},{"product_id":"sierra-18-0939-9-upper-gearcase-dipstick-gasket-replaces-omc-315189-pack-of-2","title":"Sierra 18-0939-9 Upper Gearcase Dipstick Gasket - Replaces OMC 315189 - Pack of 2","description":"\u003cp\u003eThe Sierra 18-0939-9 Upper Gearcase Dipstick Gasket is a replacement gasket for the upper gearcase dipstick opening on applicable outboard and sterndrive gearcases, sold as a pack of 2 for stocking spares or servicing multiple units. It is designed to seal the dipstick tube against the gearcase housing, helping prevent gear lubricant from seeping out around the dipstick during normal operation and while checking gearcase oil level. Sierra manufactures this gasket to meet or exceed the quality of the original equipment part it replaces, giving installers a reliable option when performing gearcase service, dipstick replacement, or general lower-unit maintenance. Because the gasket is a wear item that can harden, compress, or tear over time, replacing it whenever the dipstick is removed for service helps maintain a proper seal and avoid oil loss. The 18-0939-9 gasket is interchangeable with OMC part number 315189, making it a straightforward like-for-like replacement for technicians and boat owners who already have the OMC part number from their service manual or parts diagram. Its small size and low weight make it an easy, low-cost addition to a maintenance parts kit alongside other gearcase seals and gaskets.\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 18-0939-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Upper Gearcase Dipstick Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e Pack of 2\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 808282162047\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e OMC 315189\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits applications originally using OMC gearcase gasket part number 315189. Check your dipstick tube gasket location against this part number before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 315189\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0939-9 gasket fit?\u003c\/strong\u003e The Sierra 18-0939-9 Upper Gearcase Dipstick Gasket is designed as a direct replacement for OMC part number 315189, so it fits any application that originally used that OMC gasket at the upper gearcase dipstick opening.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0939-9 gasket the same as OMC 315189?\u003c\/strong\u003e Yes, Sierra part 18-0939-9 is interchangeable with OMC 315189 and is built to meet or exceed the quality of that original equipment gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a pack?\u003c\/strong\u003e The Sierra 18-0939-9 is sold as a pack of 2 upper gearcase dipstick gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this gasket weigh?\u003c\/strong\u003e Each package of the Sierra 18-0939-9 gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the upper gearcase dipstick gasket?\u003c\/strong\u003e The dipstick gasket should be replaced any time the dipstick is removed for gearcase service, since the Sierra 18-0939-9 gasket can lose its seal after being disturbed or after prolonged use, leading to oil seepage around the dipstick.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-0939-9 is a genuine Sierra International part manufactured to meet or exceed the original equipment specification of OMC 315189, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0939-9?\u003c\/strong\u003e The UPC for the Sierra 18-0939-9 Upper Gearcase Dipstick Gasket is 808282162047.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e Ordering the Sierra 18-0939-9 gets you a pack of 2 upper gearcase dipstick gaskets; no other hardware or tools are included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this gasket for general gearcase maintenance?\u003c\/strong\u003e Yes, the Sierra 18-0939-9 gasket is commonly used during routine gearcase oil checks and service any time the dipstick is pulled and reinstalled.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra list any other cross-reference numbers for this gasket?\u003c\/strong\u003e The only cross-reference listed for the Sierra 18-0939-9 gasket is OMC part number 315189.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988086599899,"sku":"SIE-18-0939-9","price":2.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0939_lg__61119.1558120843.500.750.jpg?v=1785188214"},{"product_id":"sierra-18-1236-upper-gearcase-drain-screw-for-omc-cobra-evinrude-v-6-40-50hp-outboards-1989-1997-replaces-omc-336982","title":"Sierra 18-1236 Drain Screw, OEM 309243, for OMC Cobra V-6 40-50 HP Drives (1989-97)","description":"\u003cp\u003eThe Sierra 18-1236 is a gearcase drain screw machined from alloy steel with a machined finish for corrosion resistance and a clean, precise fit. It is designed as a direct equivalent to OMC part 309243, used to seal the drain\/fill port on the lower unit or drive housing during service. The screw uses a flat head with a Torx socket drive and a #6-40 fully-threaded, right-hand Unified National Coarse (UNC) shaft, compatible with a 0.25 inch groove diameter. Its compact 0.39 x 0.39 x 0.39 inch dimensions make it a small, easily overlooked but essential part to have on hand any time the gearcase is drained for an oil change or inspection.\u003c\/p\u003e\u003cp\u003eThis drain screw is intended for OMC Cobra drives and V-6 40-50 HP applications from 1989-97. A dedicated O-ring is used with the 18-1236 drain screw to complete the seal; the O-ring is a separate, individually sold component and is not included with this screw. Each unit is sold as a single drain screw.\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 18-1236\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 309243\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive System:\u003c\/strong\u003e Torx\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e #6-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Screw Thread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\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\u003eCompatible Groove Diameter:\u003c\/strong\u003e 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC Cobra drives\u003c\/li\u003e\n\u003cli\u003eV-6 40-50 HP (1989-97)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 309243\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-1236 drain screw fit?\u003c\/strong\u003e The Sierra 18-1236 drain screw is designed for OMC Cobra drives and V-6 40-50 HP applications from 1989-97.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-1236 replace?\u003c\/strong\u003e It is a direct equivalent to OMC part number 309243.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1236 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-1236 is Sierra's own manufacturer part number for this drain screw, not a third-party knockoff.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the drain screw made of?\u003c\/strong\u003e The 18-1236 drain screw is machined from alloy steel with a machined finish for durability and corrosion resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-1236 use?\u003c\/strong\u003e It has a #6-40 thread that is fully threaded, right-hand, and Unified National Coarse (UNC).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drive type does the screw head use?\u003c\/strong\u003e The 18-1236 has a flat head with a Torx socket drive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow big is the Sierra 18-1236 drain screw?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches and is compatible with a 0.25 inch groove diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1236 come with an O-ring?\u003c\/strong\u003e No, the O-ring used with the 18-1236 drain screw is sold separately as its own part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1236 drain screw weigh?\u003c\/strong\u003e It weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many drain screws are included per order?\u003c\/strong\u003e Each Sierra 18-1236 order includes a single drain screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this drain screw?\u003c\/strong\u003e The 18-1236 is typically replaced whenever the gearcase oil is drained and the screw or its O-ring shows wear, since a worn seal can allow oil to leak from the drive.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988087386331,"sku":"SIE-18-1236","price":7.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1236_lg__89416.1558119460.500.750.jpg?v=1785188232"},{"product_id":"mercruiser-lower-gear-housing-bearing-repair-kit-mpn-118-1404","title":"Sierra Bearing Repair Kit 18-1404 for Mercruiser Lower Gear Housing","description":"\u003cp\u003eThe Sierra 18-1404 is a bearing repair kit built for the lower gear housing on Mercruiser sterndrive units. It is designed to restore proper bearing function in the lower unit, giving boat owners and marine technicians a straightforward way to address wear in the gear housing without having to source individual bearing components separately. This kit falls under Sierra's Mercruiser lower gear housing bearing category, making it a targeted replacement solution for this specific service point on the outdrive.\u003c\/p\u003e\u003cp\u003eAt 3.94 pounds, this is a substantial kit intended for a full lower unit bearing service. Ordering by the Sierra part number 18-1404 ensures you get the correct kit for this application rather than a generic or mismatched bearing set.\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 18-1404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bearing Repair Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser Lower Gear Housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.94 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282383831\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-1404 kit used for?\u003c\/strong\u003e It is a bearing repair kit for the lower gear housing on Mercruiser sterndrive units, used to service the bearings in that section of the lower unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1404 bearing repair kit weigh?\u003c\/strong\u003e The Sierra 18-1404 weighs 3.94 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1404 kit specific to Mercruiser lower units?\u003c\/strong\u003e Yes, this Sierra kit is categorized specifically for Mercruiser lower gear housing bearing service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part number should I reference when ordering this kit?\u003c\/strong\u003e Order using Sierra part number 18-1404 to ensure you receive the correct lower gear housing bearing repair kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-1404 a Sierra brand product?\u003c\/strong\u003e Yes, the 18-1404 bearing repair kit is manufactured under the Sierra brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-1404 kit?\u003c\/strong\u003e The UPC for this Sierra bearing repair kit is 808282383831.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1404 kit cover the full lower gear housing or a single bearing?\u003c\/strong\u003e It is sold as a kit, indicating it is intended for a lower gear housing bearing service rather than a single standalone bearing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere on the boat does the 18-1404 kit get installed?\u003c\/strong\u003e This kit services the lower gear housing, which is part of the lower unit on a Mercruiser sterndrive.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988087779547,"sku":"SIE-18-1404","price":152.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-1404__42970.1722501545.500.750.jpg?v=1785329151"},{"product_id":"sierra-18-1711-u-joint-cross-bearing-replaces-mercury-862132t-fits-mercruiser-alpha-one-bravo-gen-ii-mc-i-r-mr","title":"Sierra U-Joint Cross Bearing 18-1711, Replaces Mercury Marine 862132T","description":"\u003cp\u003eThe Sierra 18-1711 U-Joint Cross Bearing is a replacement cross bearing designed for marine drive u-joints, built from alloy steel for durability under the load and rotational stress a u-joint assembly sees in service. It is lubricated with grease and supplied as a single unit for straightforward swap-in replacement when an existing cross bearing has worn out or is being serviced as part of a u-joint rebuild. As a direct equivalent to the original Mercury Marine part, it is intended to restore u-joint function to factory specification without modification to the surrounding driveline components. The alloy steel construction is matched to OEM material specification, and the bearing carries a limited warranty. This part ships as one bearing per package and is intended for buyers replacing a worn or damaged cross bearing rather than a complete u-joint kit.\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 18-1711\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Cross Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.85 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282167196\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal u-joint cross bearing; no specific engine, horsepower, or model-year fitment is listed.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 862132T\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-1711 U-Joint Cross Bearing used for?\u003c\/strong\u003e It is a cross bearing that fits inside a marine drive u-joint assembly, allowing the joint to pivot smoothly while transmitting rotational power; the Sierra 18-1711 is used to replace a worn or damaged cross bearing during u-joint service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1711 cross bearing replace an OEM Mercury Marine part?\u003c\/strong\u003e Yes, the Sierra 18-1711 is a direct equivalent to Mercury Marine part number 862132T.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-1711 cross bearing made from?\u003c\/strong\u003e It is made from alloy steel, matching the material specification of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-1711 cross bearing weigh?\u003c\/strong\u003e The bearing weighs 1.85 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bearings come in one package of the 18-1711?\u003c\/strong\u003e Each package of the Sierra 18-1711 U-Joint Cross Bearing contains a single unit (1 count).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of lubricant should be used with this cross bearing?\u003c\/strong\u003e Grease is the compatible lubricant for the Sierra 18-1711 U-Joint Cross Bearing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1711 a genuine Mercury Marine part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-branded aftermarket replacement built to OEM specification as an equivalent to Mercury Marine 862132T, not a Mercury Marine branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1711 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-1711 U-Joint Cross Bearing is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1711 cross bearing specific to certain engines or model years?\u003c\/strong\u003e No specific engine, horsepower, or model-year fitment is listed for the Sierra 18-1711; it is a cross bearing sized for standard marine u-joint assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-1711 U-Joint Cross Bearing?\u003c\/strong\u003e The UPC is 808282167196.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088795355,"sku":"SIE-18-1711","price":162.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1711_lg__25005.1558122752.500.750.jpg?v=1785188585"},{"product_id":"sierra-18-1728-bellows-flange-ring-replaces-oem-816607-fits-mercruiser-alpha-one-gen-ii-1991-and-up","title":"Sierra 18-1728 Bellow Flange Ring for MerCruiser Alpha One Gen II (1991 \u0026 Up)","description":"\u003cp\u003eThe Sierra 18-1728 is a rubber bellow flange ring built for MerCruiser Alpha One (Gen II) sterndrives (1991 and up). This white rubber ring seals and reinforces the flange area of the exhaust\/drive bellow assembly, helping maintain a watertight connection between the transom and the sterndrive unit. As a wear component in the sterndrive's bellows system, it is a part boat owners typically replace during routine bellows maintenance or when performing a full bellows kit replacement, since rubber components in this location are exposed to constant flexing, saltwater or freshwater immersion, and engine vibration over time.\u003c\/p\u003e\u003cp\u003eSierra manufactures this flange ring to meet or exceed the specifications of the original equipment part it is designed to work with, and Sierra supplies parts to OEM engine manufacturers and boat builders as part of its regular production. The compact, lightweight ring is easy to handle during installation and is sized specifically for Alpha One (Gen II) applications, so boat owners working on this sterndrive series can source a correctly fitted replacement flange ring rather than a generic substitute.\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 18-1728\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\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 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282295073\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit within stated application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMerCruiser Alpha One (Gen II), 1991 \u0026amp; Up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat boats and drives does the Sierra 18-1728 fit?\u003c\/strong\u003e The Sierra 18-1728 bellow flange ring is designed for MerCruiser Alpha One (Gen II) sterndrives, 1991 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-1728 flange ring made of?\u003c\/strong\u003e It is made of white rubber, a material chosen for its flexibility and ability to hold a seal in the bellows flange area.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-1728 weigh?\u003c\/strong\u003e This flange ring weighs 0.01 pounds, reflecting its small, lightweight construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1728 an OEM or aftermarket part?\u003c\/strong\u003e The 18-1728 is a Sierra-manufactured part engineered to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-1728 bellow flange ring?\u003c\/strong\u003e The UPC for this part is 808282295073.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this flange ring?\u003c\/strong\u003e Replacement is typically needed during sterndrive bellows maintenance, since rubber components at the flange are subject to ongoing flexing and water exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1728 fit older MerCruiser Alpha One models before Gen II?\u003c\/strong\u003e No fitment is stated for MerCruiser Alpha One models prior to the Gen II, 1991-and-up application; only that range is confirmed for the 18-1728.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-1728 bellow flange ring?\u003c\/strong\u003e The ring is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a universal-fit part?\u003c\/strong\u003e The Sierra 18-1728 is listed as a universal fit within its stated MerCruiser Alpha One (Gen II), 1991 \u0026amp; Up application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra stand behind the 18-1728 with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-1728 bellow flange ring is covered by a limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088828123,"sku":"SIE-18-1728","price":21.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1728__25318.1729019993.500.750.jpg?v=1785188543"},{"product_id":"sierra-18-1710-bellow-flange-ring-for-mercruiser-bravo-replaces-oem-862209-86814","title":"Sierra 18-1710 Bellow Flange Ring, Replaces 862209 86814, Fits All Bravo Drives","description":"\u003cp\u003eThe Sierra 18-1710 Bellow Flange Ring is a machined flange ring designed for the exhaust bellows on all Bravo sterndrive units. It seats and secures the bellows against the drive housing, maintaining a proper seal at the connection point between the bellows and the drive. As a direct replacement part, it is built to meet or exceed the specifications of the original equipment it replaces, making it a reliable choice when servicing or rebuilding the bellows assembly on a Bravo drive.\u003c\/p\u003e\u003cp\u003eThis flange ring is a small but essential component in the bellows system, and using the correct ring helps ensure the bellows seats correctly and holds its seal, which is critical for keeping water out of the boat and exhaust gases properly routed. It is sold as an individual replacement ring for technicians and boat owners performing bellows maintenance or full bellows replacement on Bravo-equipped MerCruiser drives.\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 18-1710\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Bellow Flange Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282295097\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 862209, 86814\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll Bravo sterndrive models\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e862209\u003c\/li\u003e\n\u003cli\u003e86814\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-1710 Bellow Flange Ring fit?\u003c\/strong\u003e The 18-1710 flange ring fits all Bravo sterndrive models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-1710 replace?\u003c\/strong\u003e This flange ring replaces OEM part numbers 862209 and 86814.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1710 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e It is a genuine Sierra part, manufactured to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the weight of the 18-1710 Bellow Flange Ring?\u003c\/strong\u003e The Sierra 18-1710 Bellow Flange Ring weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Bellow Flange Ring?\u003c\/strong\u003e The 18-1710 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the finish on the 18-1710 flange ring?\u003c\/strong\u003e The flange ring has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the flange ring when replacing the bellows on a Bravo drive?\u003c\/strong\u003e Yes, the 18-1710 flange ring seats and seals the bellows against the drive housing, so it should be inspected and replaced along with the bellows to maintain a proper seal on Bravo units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-1710 fit an Alpha One drive?\u003c\/strong\u003e No, the 18-1710 is designated for all Bravo models; a separate flange ring, part number 18-1728, is used for Alpha One (GenII) applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-1710?\u003c\/strong\u003e The order includes one Sierra 18-1710 Bellow Flange Ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1710 come in a display package?\u003c\/strong\u003e The 18-1710 is the standard non-display packaged number; a corresponding display-packaged version exists as a separate item.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-1710 Bellow Flange Ring?\u003c\/strong\u003e The UPC for the Sierra 18-1710 Bellow Flange Ring is 808282295097.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088860891,"sku":"SIE-18-1710","price":6.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1710__86676.1729021691.500.750.jpg?v=1785189148"},{"product_id":"sierra-18-1705-hinge-pin-with-grease-port-for-mercruiser-alpha-alpha-gen-ii-gimbal-housing-replaces-77123-s-n-0m815638-lower","title":"Sierra Hinge Pin 18-1705 - Replaces 77123, 77123A1, 65547 - Gimbal Housing for Alpha Gen II and Bravo","description":"\u003cp\u003eThe Sierra Hinge Pin 18-1705 is a replacement hinge pin for the gimbal housing on Alpha Gen II and Bravo sterndrives. It is built from metal for durability in the marine environment and is designed to meet or exceed the performance of the original equipment part it replaces. This hinge pin secures the gimbal housing to the transom assembly, and correct fitment matters for proper steering and trim function, so installers should confirm the serial number range and drive model before ordering.\u003c\/p\u003e\u003cp\u003eThis part is designed to fit Alpha Gen II units with serial number 0M85639 and up, as well as all Bravo models equipped with a trim sender. Sierra manufactures this hinge pin as a direct cross-reference replacement for the OEM numbers 77123, 77123A1, and 65547, making it a straightforward swap when the original hinge pin is worn, corroded, or damaged. As with other Sierra replacement parts, it is engineered to hold up under the demands of high-horsepower engines and the harsh marine operating environment.\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 18-1705\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Hinge Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gimbal Housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282186609\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAlpha Gen II, S\/N 0M85639 \u0026amp; UP\u003c\/li\u003e\n\u003cli\u003eBravo, All Models with trim sender\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e77123\u003c\/li\u003e\n\u003cli\u003e77123A1\u003c\/li\u003e\n\u003cli\u003e65547\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-1705 hinge pin used for?\u003c\/strong\u003e It is a hinge pin for the gimbal housing on Alpha Gen II and Bravo sterndrives, securing the gimbal housing so the drive can steer and trim correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill hinge pin 18-1705 fit an Alpha Gen II drive?\u003c\/strong\u003e Yes, but only on Alpha Gen II units with serial number 0M85639 and up; earlier serial numbers are not covered by this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-1705 fit Bravo drives?\u003c\/strong\u003e It fits all Bravo models equipped with a trim sender.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-1705 hinge pin replace?\u003c\/strong\u003e It cross-references to OEM numbers 77123, 77123A1, and 65547.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1705 hinge pin genuine OEM or aftermarket?\u003c\/strong\u003e The 18-1705 is a Sierra aftermarket replacement part engineered to meet or exceed the performance of the original 77123\/77123A1\/65547 hinge pin it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-1705 hinge pin made from?\u003c\/strong\u003e This hinge pin is made from metal for durability in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-1705 hinge pin weigh?\u003c\/strong\u003e It weighs 0.13 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hinge pins come in one package?\u003c\/strong\u003e The Sierra 18-1705 is sold as a single hinge pin.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-1705 hinge pin?\u003c\/strong\u003e The UPC for this hinge pin is 808282186609.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-1705 hinge pin be used on gimbal bearing applications?\u003c\/strong\u003e No, the 18-1705 is specifically a gimbal housing hinge pin, not a gimbal bearing; confirm your drive's serial number and model against the Alpha Gen II and Bravo fitment before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088926427,"sku":"SIE-18-1705","price":23.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1705_lg__03496.1729094776.500.750.jpg?v=1785188526"},{"product_id":"sierra-18-2003-oil-seal-replaces-mercury-26-64893-mercruiser-upper-gear-housing-sterndrive-seal-kit-component","title":"Sierra 18-2003 Oil Seal for MerCruiser Alpha One Upper Gear Housing, Replaces Mercury Marine 26-68493 26-823894","description":"\u003cp\u003eThe Sierra 18-2003 is an upper gear housing oil seal built for MerCruiser stern drive applications, including the Alpha One, Alpha One SS, and Alpha One Gen II family of drives. It is designed to keep gear lube contained within the upper drive housing while sealing out water intrusion, protecting the gear set and bearings from contamination and premature wear. The seal is white in color with a rectangular profile and is a lightweight, single-piece component intended for straightforward replacement during upper gear housing service or seal kit rebuilds.\u003c\/p\u003e\u003cp\u003eThis seal cross-references directly to Mercury Marine OEM part numbers 26-68493 and 26-823894, making it a drop-in equivalent for owners who prefer an aftermarket-priced option without deviating from OEM fit and function. Fitment spans a wide range of MerCruiser drive applications and model years, from early 888\/228\/250\/260 units through Alpha One Gen II (CR) drives. Because a gear housing seal is a wear item exposed to constant lubricant and water contact, replacing it whenever the upper housing is opened for service helps prevent leaks and gear lube contamination.\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 18-2003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Rectangular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 26-68493, 26-823894\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 888 \/ 228 \/ 250 \/ 260, 1977-1982\u003c\/li\u003e\n\u003cli\u003eMerCruiser R, 1983 \u0026amp; up\u003c\/li\u003e\n\u003cli\u003eMerCruiser MR Alpha One, 1984-1990\u003c\/li\u003e\n\u003cli\u003eMerCruiser MR Alpha One (CR), 1984-1990\u003c\/li\u003e\n\u003cli\u003eMerCruiser Alpha One SS, 1986-1989\u003c\/li\u003e\n\u003cli\u003eMerCruiser Alpha One Gen II, 1991-1995\u003c\/li\u003e\n\u003cli\u003eMerCruiser Alpha One Gen II (CR), 1991-1995\u003c\/li\u003e\n\u003cli\u003eMerCruiser Alpha One Gen II, 1996-1997\u003c\/li\u003e\n\u003cli\u003eMerCruiser Alpha One Gen II (CR), 1996-2010\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 26-68493\u003c\/li\u003e\n\u003cli\u003eMercury Marine 26-823894\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat MerCruiser drives does the Sierra 18-2003 oil seal fit?\u003c\/strong\u003e The Sierra 18-2003 fits MerCruiser 888\/228\/250\/260 drives (1977-1982), MerCruiser R (1983 \u0026amp; up), MR Alpha One and MR Alpha One (CR) drives (1984-1990), Alpha One SS drives (1986-1989), and Alpha One Gen II and Alpha One Gen II (CR) drives (1991-1995, 1996-1997, and 1996-2010).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2003 the same as a Mercury Marine seal?\u003c\/strong\u003e Yes, the Sierra 18-2003 cross-references directly to Mercury Marine OEM oil seals 26-68493 and 26-823894, so it fits and functions the same as the genuine Mercury Marine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and shape is the 18-2003 seal?\u003c\/strong\u003e It is a white, rectangular-shaped seal designed for the upper gear housing of the specified MerCruiser drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2003 oil seal weigh?\u003c\/strong\u003e This oil seal weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-2003 oil seal manufactured?\u003c\/strong\u003e The Sierra 18-2003 upper gear housing oil seal is manufactured in Taiwan.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2003 a genuine Mercury Marine part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket Sierra-brand oil seal, not a genuine Mercury Marine part, but it cross-references to Mercury Marine 26-68493 and 26-823894 for equivalent fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2003 seal fit the Alpha One Gen II (CR) drive?\u003c\/strong\u003e Yes, the 18-2003 fits Alpha One Gen II (CR) drives for the 1991-1995 and 1996-2010 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seals come in a package?\u003c\/strong\u003e The Sierra 18-2003 is packaged as a single oil seal per unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2003 fit the early MerCruiser 888\/228\/250\/260 drives?\u003c\/strong\u003e Yes, this seal fits MerCruiser 888\/228\/250\/260 drives from the 1977-1982 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM cross-reference number for the Sierra 18-2003?\u003c\/strong\u003e The Sierra 18-2003 cross-references to Mercury Marine 26-68493 and 26-823894.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2003 fit an Alpha One SS drive?\u003c\/strong\u003e Yes, the Sierra 18-2003 is listed for MerCruiser Alpha One SS drives from the 1986-1989 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-2003 seal used for?\u003c\/strong\u003e The 18-2003 is an upper gear housing oil seal used to retain gear lubricant and keep water out of the upper drive housing on the listed MerCruiser applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988090269915,"sku":"SIE-18-2003","price":21.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2003_lg__62920.1558121909.500.750.jpg?v=1785188676"},{"product_id":"sierra-18-2011-marine-oil-seal-replaces-mercury-26-90562-mercruiser-lower-gear-housing-water-pump-base-seal","title":"Sierra 18-2011 Oil Seal for MerCruiser 60\/80\/90 Gear Housing (1965-1972), Replaces Mercury Marine 26-90562","description":"\u003cp\u003eThe Sierra 18-2011 is a lower gear housing oil seal built for MerCruiser 60\/80\/90 model stern drives produced from 1965 to 1972. It is a precision-machined replacement seal used during gear housing service, sealing the housing against water intrusion and lubricant loss at the shaft. The seal cross-references directly to Mercury Marine part number 26-90562, making it a straightforward drop-in replacement for boaters and marine technicians rebuilding or servicing the lower unit on this model line.\u003c\/p\u003e\u003cp\u003eThe 18-2011 measures 1.250 inches in outer diameter, has a shaft size of 0.750 inches, and a width of 0.312 inches, with a machined exterior finish. It is a compact, lightweight component at 0.02 pounds, sized to fit within the gear housing seal carrier alongside the other components (such as the O-ring and bearing carrier) used in MerCruiser 60\/80\/90 gear housing seal 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 18-2011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MerCruiser Lower Gear Housing Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 1.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Size:\u003c\/strong\u003e 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.312 inches\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\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999309570\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMerCruiser 60 \/ 80 \/ 90 model gear housings, 1965-1972\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 26-90562\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2011 oil seal fit?\u003c\/strong\u003e The 18-2011 is designed for MerCruiser 60\/80\/90 model lower gear housings built from 1965 to 1972.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2011 the same as Mercury Marine 26-90562?\u003c\/strong\u003e Yes, the 18-2011 cross-references directly to Mercury Marine part number 26-90562.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this seal?\u003c\/strong\u003e The 18-2011 measures 1.250 inches in outer diameter, 0.750 inch shaft size, and 0.312 inch width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2011 oil seal weigh?\u003c\/strong\u003e 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the exterior finish on this seal?\u003c\/strong\u003e The Sierra 18-2011 has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Mercury OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-2011 is manufactured by Sierra as an aftermarket seal engineered to the Mercury Marine 26-90562 specification, rather than a Mercury-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2011?\u003c\/strong\u003e 030999309570.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does this seal fit within the gear housing?\u003c\/strong\u003e In the MerCruiser 60\/80\/90 gear housing seal chart, the 18-2011 is listed as the Seal component alongside the O-ring and bearing carrier used for that model and year range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2011 fit later MerCruiser models like the Alpha One?\u003c\/strong\u003e No, the 18-2011 is listed specifically for the 60\/80\/90 model gear housings covering 1965-1972; later MerCruiser drive lines use different Sierra seal part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size shaft does the 18-2011 seal accept?\u003c\/strong\u003e A 0.750 inch shaft, per the seal's listed shaft size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with this part?\u003c\/strong\u003e The 18-2011 is sold as a single oil seal, not a full gear housing seal kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2011 be cross-referenced by its Mercury Marine number?\u003c\/strong\u003e Yes, searching Mercury Marine 26-90562 will return the Sierra 18-2011 as its cross-referenced equivalent.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988090302683,"sku":"SIE-18-2011","price":12.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2011__04532.1722501864.500.750.jpg?v=1785189002"},{"product_id":"sierra-18-2097-permalube-u-joint-cross-bearing-for-mercruiser-stern-drive-replaces-805536a2-serial-f680000-ok999999","title":"Sierra 18-2097 U-Joint Permalube, Replaces 805536A2, for MerCruiser Bravo One\/Two\/Three Sterndrives","description":"\u003cp\u003eThe Sierra 18-2097 is a Permalube u-joint built as a direct replacement for the u-joint used in MerCruiser Bravo One, Two, and Three sterndrives (all ratios), including the Bravo One X, Two X, Three X (all ratios), Bravo One XR\/XZ (all ratios), and Bravo One XR Sportmaster (all ratios), as well as Integrated Transom applications. The u-joint transmits rotational drive from the driveshaft to the propeller shaft through the drive's u-joint bellows\/gimbal assembly, and it is a wear item that should be inspected and replaced as part of routine sterndrive maintenance or whenever play, corrosion, or roughness is found in the joint. Permalube construction means the joint is factory-packed with grease at the needle bearings, so it does not require an external grease fitting to be serviced during installation. The part is machined for a precise fit against the yoke and cross bearing surfaces it mates to. Sierra manufactures the 18-2097 as a cross-reference to the original Mercury Marine u-joint, so it installs the same as the factory part on the drives listed above 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 18-2097\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e U-Joint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Permalube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Bravo One, Two, \u0026amp; Three (All Ratios), Bravo One X\/Two X, Three X (All Ratios), Bravo One XR\/XZ (All Ratios), Bravo One XR Sportmaster (All Ratios) \u0026amp; Integrated Transom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 8055361, 805536A1, 805536A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.23 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 1.31 x 5.5 x 3.44 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282239947\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBravo One, Two, \u0026amp; Three (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One X\/Two X, Three X (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One XR\/XZ (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One XR Sportmaster (All Ratios)\u003c\/li\u003e\n\u003cli\u003eIntegrated Transom\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8055361\u003c\/li\u003e\n\u003cli\u003e805536A1\u003c\/li\u003e\n\u003cli\u003e805536A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2097 replace?\u003c\/strong\u003e It cross-references to Mercury Marine numbers 8055361, 805536A1, and 805536A2, so any of those OEM numbers point to the same u-joint as the Sierra 18-2097.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich sterndrives does this u-joint fit?\u003c\/strong\u003e The 18-2097 is built for MerCruiser Bravo One, Two, and Three drives (all ratios), including Bravo One X\/Two X, Three X (all ratios), Bravo One XR\/XZ (all ratios), Bravo One XR Sportmaster (all ratios), and Integrated Transom applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this u-joint fit Alpha series drives?\u003c\/strong\u003e The Sierra 18-2097 is listed specifically for the Bravo One, Two, and Three drive family and Integrated Transom applications, not for Alpha series drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does Permalube mean on this u-joint?\u003c\/strong\u003e Permalube on the 18-2097 means the needle bearings are factory-packed with grease, so the joint is ready to install without needing an external grease fitting serviced at assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-2097 u-joint?\u003c\/strong\u003e The Sierra 18-2097 measures 1.31 x 5.5 x 3.44 inches and weighs 1.23 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2097 a genuine Sierra part or a generic aftermarket copy?\u003c\/strong\u003e It is manufactured by Sierra under part number 18-2097 and sold under the Sierra brand, machined as a direct cross-reference to the Mercury Marine u-joint it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2097?\u003c\/strong\u003e You receive one Sierra 18-2097 Permalube u-joint; it is sold as a single u-joint, not a kit with seals or bellows.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2097 different from the Mercury Marine 805536A2 it replaces?\u003c\/strong\u003e Functionally the 18-2097 is a direct replacement for Mercury Marine 805536A2, 805536A1, and 8055361, machined by Sierra with Permalube grease packed into the bearings for the same fit and application on Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-2097 myself or does it need a machine shop?\u003c\/strong\u003e The Sierra 18-2097 is a machined replacement u-joint sized for direct installation in the Bravo drive's u-joint assembly; no machining is required since it is made to the same fit as the OEM part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-2097 u-joint have?\u003c\/strong\u003e The Sierra 18-2097 has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2097 work on Bravo One XR Sportmaster drives?\u003c\/strong\u003e Yes, the Sierra 18-2097 is listed for Bravo One XR Sportmaster (all ratios) in addition to Bravo One, Two, Three, and the other Bravo variants.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091580635,"sku":"SIE-18-2097","price":82.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2097_lg__68410.1558123807.500.750.jpg?v=1785188167"},{"product_id":"sierra-18-2094-marine-oil-seal-replaces-mercruiser-26-88416-26-36143-fits-alpha-one-bravo-i-ii-iii-and-r-mr-470-sterndrives","title":"Sierra 18-2094 Oil Seal, Replaces 30-60794A2, Fits Mercruiser 1, R, MR and Alpha Stern Drives 1974-97","description":"\u003cp\u003eThe Sierra 18-2094 is a greasable oil seal engineered for Mercruiser stern drive units, sold to meet or exceed original equipment quality. It is designed as a direct replacement for the factory seal on Mercruiser 1, R, MR, and Alpha model stern drives built through the 1974-97 range, restoring the seal that keeps water out and lubricating grease in around the drive shaft. Each unit is greasable, allowing fresh grease to be worked into the seal during service to extend its working life and protect against water intrusion at the gimbal\/drive shaft interface.\u003c\/p\u003e\u003cp\u003eThis part is packaged so that one 18-2094 seal and one 18-2100 seal are included together, since Mercruiser stern drive service on these units typically calls for replacing both seals as a set. The white-finished seal cross-references directly to Mercury Marine part numbers 30-60794A2, 30-60794A4, and 30-879194A02, so it drops into the same location as those OEM numbers without modification. It is a straightforward maintenance item for anyone performing gimbal bearing, drive shaft, or U-joint service on a compatible Mercruiser stern drive, and is commonly replaced any time the drive is disassembled for other repair work to ensure a fresh, reliable seal is in place.\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 18-2094\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Internal Engine Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Greasable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Contains one each of 18-2094 and 18-2100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser 1, R, MR and Alpha stern drives (1974-97)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 30-60794A2, 30-60794A4, 30-879194A02\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282185206\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 1, R, MR and Alpha stern drives (1974-97)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e30-60794A2\u003c\/li\u003e\n\u003cli\u003e30-60794A4\u003c\/li\u003e\n\u003cli\u003e30-879194A02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2094 oil seal fit?\u003c\/strong\u003e The Sierra 18-2094 is designed for Mercruiser 1, R, MR and Alpha model stern drives (1974-97), sealing the drive shaft area to keep water out and grease in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-2094 replace?\u003c\/strong\u003e It cross-references directly to Mercury Marine numbers 30-60794A2, 30-60794A4, and 30-879194A02, so it installs in place of any of those factory numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2094 come with anything else in the package?\u003c\/strong\u003e Yes, this package contains one each of the 18-2094 and 18-2100 seals, since these two are typically replaced together during stern drive service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2094 seal greasable?\u003c\/strong\u003e Yes, the 18-2094 is a greasable design, meaning fresh grease can be worked into the seal to help maintain its seal against water intrusion over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2094 oil seal weigh?\u003c\/strong\u003e The Sierra 18-2094 weighs 0.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2094 seal?\u003c\/strong\u003e The 18-2094 has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2094 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-manufactured replacement part built to meet or exceed original equipment quality, cross-referenced to Mercury Marine OEM numbers 30-60794A2, 30-60794A4, and 30-879194A02 rather than being sold under the Mercury Marine brand itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace the 18-2094 seal?\u003c\/strong\u003e This seal is typically replaced whenever a compatible Mercruiser 1, R, MR or Alpha stern drive is disassembled for gimbal, drive shaft, or U-joint service, or when the existing seal shows wear that could let water in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need special tools to install the 18-2094?\u003c\/strong\u003e Installation follows standard Mercruiser stern drive disassembly and reseal procedures for the 1, R, MR and Alpha model drives that the 18-2094 is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2094 seal sold as a single seal or a pair?\u003c\/strong\u003e The 18-2094 package contains one each of the 18-2094 and 18-2100 seals, so both are included together rather than sold as two separate 18-2094 units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2094?\u003c\/strong\u003e The Sierra 18-2094 oil seal has UPC 808282185206.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091646171,"sku":"SIE-18-2094","price":21.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__32850.1753840675.500.750.jpg?v=1785188938"},{"product_id":"sierra-18-21001-gimbal-bearing-replaces-mercury-30-879194a02-fits-mercruiser-alpha-bravo-i-ii-iii-gen-ii-sterndrives-non-greasable","title":"Sierra 18-21001 Gimbal Bearing for Blackhawk 1994-1995, Serial F186717 and Up","description":"\u003cp\u003eThe Sierra 18-21001 is a ball-type gimbal bearing built to support the coupling between the engine and the stern drive unit on applicable inboard\/outboard boats. It is constructed of metal for durability in the marine environment and is lubricated with grease to keep the bearing running smoothly under load. The bearing carries the Sierra brand assurance that its replacement parts meet or exceed the performance of the original equipment part they replace, and it ships as a single unit ready for installation in place of a worn or failed gimbal bearing.\u003c\/p\u003e\u003cp\u003eThis bearing is compact, measuring 0.39 x 0.39 x 0.39 inches, and is designed to fit Blackhawk applications from 1994-1995 with serial number F186717 and up. Boat owners servicing their stern drive coupling in this fitment range can use the 18-21001 as a direct fit for that application. As with any drivetrain bearing, replacing a worn gimbal bearing helps prevent excess play, vibration, and premature wear on the connected driveshaft components.\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 18-21001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gimbal Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Ball Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Thickness:\u003c\/strong\u003e 25 Millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282294168\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00808282294168\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eBlackhawk, 1994-1995, serial number F186717 and up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-21001 gimbal bearing used for?\u003c\/strong\u003e The 18-21001 is a ball-type gimbal bearing that supports the coupling between the engine and stern drive unit, and it is used to replace a worn or failed gimbal bearing in that application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat boats does the 18-21001 gimbal bearing fit?\u003c\/strong\u003e This bearing fits Blackhawk applications from 1994-1995 with serial number F186717 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21001 an OEM or aftermarket bearing?\u003c\/strong\u003e The 18-21001 is a Sierra-brand replacement bearing designed to meet or exceed the performance of the original equipment gimbal bearing it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-21001 gimbal bearing made from?\u003c\/strong\u003e It is made of metal, which is standard for gimbal bearings that must hold up to marine driveline loads and moisture exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-21001 gimbal bearing weigh?\u003c\/strong\u003e The Sierra 18-21001 gimbal bearing weighs 1.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-21001 gimbal bearing?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches, with an item thickness of 25 millimeters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-21001 gimbal bearing need to be lubricated?\u003c\/strong\u003e Yes, the 18-21001 is compatible with grease lubrication to keep the bearing operating smoothly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of bearing is the Sierra 18-21001?\u003c\/strong\u003e The 18-21001 is a ball bearing, identified by Sierra under bearing number 18-21001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-21001 come with a warranty?\u003c\/strong\u003e Yes, the 18-21001 gimbal bearing is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if the 18-21001 is the correct gimbal bearing for my boat?\u003c\/strong\u003e Confirm your application is a Blackhawk from 1994-1995 with serial number F186717 or higher before ordering the 18-21001, since gimbal bearings vary by drive unit and serial number range.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091711707,"sku":"SIE-18-21001","price":75.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-21001_lg__98260.1558139580.500.750.jpg?v=1785189093"},{"product_id":"sierra-18-21005-gimbal-bearing-replaces-mercruiser-30-862540a3-fits-all-bravo-alpha-one-gen-ii-1998-up","title":"Sierra Gimbal Bearing 18-21005, White - Replaces Mercruiser 30-862540A3, Mallory 9-72412","description":"\u003cp\u003eThe Sierra 18-21005 Gimbal Bearing is a replacement gimbal bearing engineered to meet or exceed original equipment quality. It supports the engine coupler shaft where the outdrive connects to the transom assembly, allowing the drive to pivot for steering while carrying the rotating load from the engine. The bearing is finished in white and constructed of alloy steel for durability in the marine drive environment, and it is designed to run with grease as the compatible lubricant.\u003c\/p\u003e\u003cp\u003eThis gimbal bearing is a direct interchange for several widely used OEM and aftermarket part numbers, making it a straightforward swap when replacing a worn or failed gimbal bearing on compatible sterndrive setups. Each Sierra part is built to match or exceed the fit, form, and function of the original part it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-21005\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Gimbal\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 Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4.25 x 4.25 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.26 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282188474\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mallory 9-72412, Mercruiser 30-862540A3, 30-879194A01, 30-862540T1, 30-862540A04\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory 9-72412\u003c\/li\u003e\n\u003cli\u003eMercruiser 30-862540A3\u003c\/li\u003e\n\u003cli\u003eMercruiser 30-879194A01\u003c\/li\u003e\n\u003cli\u003eMercruiser 30-862540T1\u003c\/li\u003e\n\u003cli\u003eMercruiser 30-862540A04\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-21005 Gimbal Bearing used for?\u003c\/strong\u003e It supports the coupler shaft connecting the engine to the outdrive, allowing the drive to pivot for steering while carrying the rotating load between the engine and sterndrive. The Sierra 18-21005 is built to meet or exceed original equipment quality for this application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21005 a direct replacement for the OEM gimbal bearing?\u003c\/strong\u003e Yes, the Sierra 18-21005 is interchangeable with Mallory 9-72412 and Mercruiser 30-862540A3, 30-879194A01, 30-862540T1, and 30-862540A04, so it installs as a direct swap for any of those part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-21005 Gimbal Bearing?\u003c\/strong\u003e The bearing measures 4.25 x 4.25 x 2 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-21005 Gimbal Bearing weigh?\u003c\/strong\u003e It weighs 1.26 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-21005 Gimbal Bearing made of?\u003c\/strong\u003e Alloy steel is the construction material, chosen for durability in a marine drive environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-21005 Gimbal Bearing?\u003c\/strong\u003e It is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat lubricant should be used with the Sierra 18-21005 Gimbal Bearing?\u003c\/strong\u003e Grease is the compatible lubricant for this gimbal bearing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the Sierra 18-21005 replace?\u003c\/strong\u003e This bearing replaces Mallory 9-72412 and Mercruiser 30-862540A3, 30-879194A01, 30-862540T1, and 30-862540A04.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21005 genuine Sierra or an aftermarket copy?\u003c\/strong\u003e It is a genuine Sierra part, part number 18-21005, manufactured to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gimbal bearings come in the package?\u003c\/strong\u003e The Sierra 18-21005 is sold as a single gimbal bearing unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is associated with the Sierra 18-21005 Gimbal Bearing?\u003c\/strong\u003e The UPC for this part is 808282188474.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-21005 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-21005 Gimbal Bearing is covered by a limited warranty.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091744475,"sku":"SIE-18-21005","price":88.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21005__56763.1558323002.500.750.jpg?v=1785188204"},{"product_id":"sierra-18-21005k-seal-gimbal-bearing-kit-for-mercruiser-bravo-alpha-one-gen-ii-1998-up-replaces-30-862540a3","title":"Sierra 18-21005K Seal \u0026 Bearing Kit for Mercruiser Gimbal Bearing","description":"\u003cp\u003eThe Sierra 18-21005K Seal \u0026amp; Bearing Kit is a replacement ball bearing and seal set built for Mercruiser gimbal bearing applications. It is designed as a direct-fit repair kit for boat owners and marine technicians who need to renew a worn or leaking gimbal bearing assembly without hunting down individual components separately. The kit pairs a metal ball bearing with matched seals so the bearing bore stays properly sealed against water intrusion, one of the most common causes of premature gimbal bearing failure on sterndrive boats.\u003c\/p\u003e\u003cp\u003eConstruction is metal for durability in the demanding marine environment, and the bearing is lubricated with grease to reduce friction and wear during operation. Sierra engineers its parts to meet or exceed the specification of the original equipment they replace, and the company supplies OEM engine manufacturers and boat builders with parts on a daily basis, so buyers can expect consistent fit and performance from the 18-21005K kit. Each kit is packaged as a complete, ready-to-install unit containing one bearing and its associated seal components.\u003c\/p\u003e\u003cp\u003eThis kit is intended for gimbal bearing service on Mercruiser sterndrive setups. Installers should confirm the bearing bore and shaft dimensions on their specific gimbal housing match this kit before ordering, as gimbal bearing kits are sized to a particular housing and drive combination.\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 18-21005K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Seal \u0026amp; Bearing Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser Gimbal Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Ball Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4.5 x 2.75 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.51 pounds\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 808282187309\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-21005K Seal \u0026amp; Bearing Kit?\u003c\/strong\u003e The Sierra 18-21005K kit includes one ball bearing and its matched seal components, packaged as a single ready-to-install seal and bearing kit for a package quantity of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this kit used for?\u003c\/strong\u003e The 18-21005K is a seal and bearing kit for Mercruiser gimbal bearing service, replacing the bearing and seals in a gimbal bearing housing on a sterndrive boat.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-21005K made from?\u003c\/strong\u003e It is made of metal, with a ball bearing design lubricated with grease for smooth operation in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-21005K Seal \u0026amp; Bearing Kit?\u003c\/strong\u003e The kit measures 4.5 x 2.75 x 5 inches and weighs 1.51 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21005K a genuine Sierra part or aftermarket?\u003c\/strong\u003e 18-21005K is a Sierra-branded seal and bearing kit engineered to meet or exceed the specification of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of bearing does this kit use?\u003c\/strong\u003e This kit uses a ball bearing, designated bearing number 18-21005K, matched with seals for the gimbal bearing bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat lubricant should be used with the 18-21005K bearing?\u003c\/strong\u003e The bearing in the 18-21005K kit is compatible with standard marine grease lubricant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-21005K manufactured?\u003c\/strong\u003e The country of origin for the 18-21005K Seal \u0026amp; Bearing Kit is China.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bearings come in one 18-21005K kit?\u003c\/strong\u003e Each 18-21005K kit has a package quantity of 1, containing a single seal and bearing set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-21005K require special tools to install?\u003c\/strong\u003e The kit is a standard press-fit seal and bearing replacement for a gimbal bearing housing; installers should verify bore and shaft dimensions match their gimbal housing before installing the 18-21005K.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091777243,"sku":"SIE-18-21005K","price":93.31,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21005K__15377.1737884803.500.750.jpg?v=1785188518"},{"product_id":"gimbal-bearing-18-21006-replaces-mercruiser-30-879194a01-fits-bravo-i-ii-iii-x-xr-xz-and-alpha-gen-ii-non-greasable","title":"Sierra Gimbal Bearing 18-21006, Replaces 30-879194A01, Fits Bravo I\/II\/III\/X\/XR\/XZ (1996-2010) \u0026 Gen II (1998-2010)","description":"\u003cp\u003eThis Sierra gimbal bearing (18-21006) supports the engine coupler where it passes through the gimbal ring, allowing the drive unit to pivot for steering and trim while carrying the load of the engine coupler shaft. It is built with an alloy steel ball bearing design and finished in white. The bearing is a non-greasable design, so there is no grease fitting to service on a routine maintenance schedule. It functions as a direct replacement for OEM part 30-879194A01 and is sized to fit the same coupler bore used across the applicable Bravo and Gen II sterndrive lines.\u003c\/p\u003e\u003cp\u003eSierra 18-21006 fits Bravo I, II, III, X, XR, and XZ sterndrives built 1996-2010, and Gen II sterndrives built 1998-2010. Within the Bravo XZ line, it is confirmed for units with serial number F730000 and up. Because gimbal bearing wear directly affects coupler alignment and can accelerate U-joint and bellows wear if left unaddressed, replacing a worn or pitted bearing with a properly sized unit like this one helps keep the drive shaft running true.\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 18-21006\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Gimbal Bearing\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 Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Ball Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Non Greasable\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 1.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282294175\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00808282294175\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Met:\u003c\/strong\u003e ISO 9001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBravo I, II, III, X, XR, and XZ sterndrives, 1996-2010\u003c\/li\u003e\n\u003cli\u003eBravo XZ sterndrives, serial number F730000 and up\u003c\/li\u003e\n\u003cli\u003eGen II sterndrives, 1998-2010\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e30-879194A01\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does gimbal bearing 18-21006 fit?\u003c\/strong\u003e Sierra 18-21006 fits Bravo I, II, III, X, XR, and XZ sterndrives built 1996-2010, and Gen II sterndrives built 1998-2010. On Bravo XZ units it is confirmed for serial number F730000 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-21006 the same as OEM part 30-879194A01?\u003c\/strong\u003e Yes, Sierra 18-21006 is a direct replacement for OEM part 30-879194A01 and is sized to the same coupler bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this gimbal bearing need to be greased?\u003c\/strong\u003e No. The 18-21006 gimbal bearing is a non-greasable design, so there is no grease fitting to service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-21006 gimbal bearing made from?\u003c\/strong\u003e It is machined from alloy steel in a ball-bearing design, finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-21006 gimbal bearing weigh?\u003c\/strong\u003e The 18-21006 gimbal bearing weighs 1.17 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of gimbal bearing 18-21006?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-21006 fit a Bravo I sterndrive?\u003c\/strong\u003e Yes, Sierra 18-21006 is listed as fitting Bravo I sterndrives built 1996-2010, along with Bravo II, III, X, XR, and XZ of the same years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-21006 fit Gen II sterndrives?\u003c\/strong\u003e Yes, this gimbal bearing fits Gen II sterndrives built 1998-2010.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-21006 gimbal bearing?\u003c\/strong\u003e The package includes one Sierra 18-21006 gimbal bearing, sold as a single unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21006 gimbal bearing genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-21006 is a genuine Sierra-branded part manufactured to ISO 9001 specification met standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial number range is confirmed for Bravo XZ fitment on 18-21006?\u003c\/strong\u003e For Bravo XZ sterndrives, Sierra 18-21006 is confirmed for serial number F730000 and up.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091810011,"sku":"SIE-18-21006","price":91.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-21006__76270.1650893893.500.750.jpg?v=1785188482"},{"product_id":"sierra-18-2100k-seal-gimbal-bearing-kit-for-mercruiser-1-r-mr-alpha-one-1974-97-replaces-30-60794a2-greasable","title":"Sierra 18-2100K Seal and Bearing Kit for Mercruiser Gimbal Bearing, White","description":"\u003cp\u003eThe Sierra 18-2100K Seal and Bearing Kit is a gimbal bearing service kit designed to restore the seal and bearing components on the drive system, replacing worn or leaking originals with parts built to meet or exceed OEM specifications. This kit is engineered to handle the demands of high horsepower marine engines and the harsh conditions of saltwater and freshwater use, making it a dependable choice for routine maintenance or full seal and bearing replacement. It is finished in white and features a round profile consistent with standard gimbal bearing housings.\u003c\/p\u003e\u003cp\u003eSierra manufactures this kit to the same quality standards it supplies to OEM engine manufacturers and boat builders, so installers can expect a fit and function that matches the original equipment being replaced. The kit ships as a complete set (1 count) so all necessary seal and bearing components are included together, simplifying the service job and reducing the need to source individual pieces 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 18-2100K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\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 count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.54 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis kit has a universal fit type; no specific make, horsepower, or model range is specified.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this kit.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2100K Seal and Bearing Kit used for?\u003c\/strong\u003e It is a seal and bearing kit used to service and restore the gimbal bearing assembly, replacing worn seals and bearings with parts built to meet or exceed the original equipment they replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2100K fit a specific boat make or engine model?\u003c\/strong\u003e The Sierra 18-2100K is listed with a universal fit type, meaning no single make, horsepower rating, or model range is specified for it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-2100K kit?\u003c\/strong\u003e White is the finish color of the Sierra 18-2100K Seal and Bearing Kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pieces come in the 18-2100K kit?\u003c\/strong\u003e The kit is sold as a single set, listed as a 1 count unit, containing the seal and bearing components together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2100K weigh?\u003c\/strong\u003e It weighs 1.54 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2100K an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket kit manufactured by Sierra, built to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there OEM cross-reference numbers for the 18-2100K?\u003c\/strong\u003e No OEM cross-reference or replaces numbers are specified for the Sierra 18-2100K Seal and Bearing Kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the seal and bearing housing in this kit?\u003c\/strong\u003e The Sierra 18-2100K has a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2100K be used in saltwater applications?\u003c\/strong\u003e Yes, the Sierra 18-2100K is built to stand up to the harsh marine environment, including the demands of saltwater use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat quality standard does Sierra hold this kit to?\u003c\/strong\u003e Sierra engineers the 18-2100K to meet or exceed the original equipment part it replaces, the same standard it applies as a supplier to OEM engine manufacturers and boat builders.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988091842779,"sku":"SIE-18-2100K","price":77.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2100K__63098.1737855155.500.750.jpg?v=1785188055"},{"product_id":"sierra-18-2100-gimbal-bearing-for-mercruiser-alpha-one-bravo-gen-ii-sterndrives-replaces-mercury-30-60794a4-1974-1997","title":"Sierra Link Belt Gimbal Bearing 18-2100, Replaces 3853807, Fits OMC\/Volvo 3.0L-8.2L (1994-1998)","description":"\u003cp\u003eThe Sierra 18-2100 is a link belt gimbal bearing built to support the drive shaft where it passes through the transom assembly on OMC and Volvo Penta sterndrive setups. Constructed of metal, this is a non-sealed design, which means it can be greased for ongoing lubrication rather than being a sealed, grease-and-forget unit. The bearing measures 4 x 4 x 2 inches overall with a 2 inch outside diameter, and weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003eThis bearing is a direct replacement for OMC part number 3853807 and is intended for OMC\/Volvo engines in the 3.0L, 4.3L, 5.0L, 5.7L, and 7.4L range (1994-1998), the 5.8L (1994-1996), and the 8.2L (1998). Installers use it during routine transom and gimbal housing service, or when replacing a worn or failing original bearing that is causing drive shaft vibration or play.\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 18-2100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gimbal Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Link Belt, non-sealed (greasable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4 x 4 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999310262\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC\/Volvo 3.0L, 4.3L, 5.0L, 5.7L, 7.4L (1994-1998)\u003c\/li\u003e\n\u003cli\u003eOMC\/Volvo 5.8L (1994-1996)\u003c\/li\u003e\n\u003cli\u003eOMC\/Volvo 8.2L (1998)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3853807\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2100 gimbal bearing fit?\u003c\/strong\u003e The Sierra 18-2100 fits OMC\/Volvo engines in the 3.0L, 4.3L, 5.0L, 5.7L, and 7.4L range for 1994-1998, the 5.8L for 1994-1996, and the 8.2L for 1998.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-2100 a direct replacement for OMC 3853807?\u003c\/strong\u003e Yes, Sierra 18-2100 is a direct replacement for OMC part number 3853807.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this gimbal bearing sealed or can it be greased?\u003c\/strong\u003e The 18-2100 is a non-sealed link belt design, meaning it can be greased for ongoing lubrication rather than being a maintenance-free sealed unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2100 gimbal bearing made of?\u003c\/strong\u003e It is made of metal, matching the construction of the original equipment bearing it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-2100?\u003c\/strong\u003e The bearing measures 4 x 4 x 2 inches overall with a 2 inch outside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2100 gimbal bearing weigh?\u003c\/strong\u003e It weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of bearing design is the 18-2100?\u003c\/strong\u003e It is a link belt gimbal bearing, part number 18-2100, designed for the drive shaft transom support on compatible OMC\/Volvo sterndrives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2100 gimbal bearing need to be greased regularly?\u003c\/strong\u003e Yes, since it is a non-sealed design, the 18-2100 should be greased periodically as part of routine sterndrive maintenance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engine sizes does the 18-2100 cover?\u003c\/strong\u003e Coverage spans 3.0L, 4.3L, 5.0L, 5.7L, 7.4L, 5.8L, and 8.2L OMC\/Volvo engines, with the specific model years noted in the fitment listing for 18-2100.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this gimbal bearing?\u003c\/strong\u003e The 18-2100 gimbal bearing is typically replaced during transom and gimbal housing service, or when the original bearing is worn and causing drive shaft vibration or play.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2100 an OEM or aftermarket part?\u003c\/strong\u003e The 18-2100 is an aftermarket bearing manufactured to match the fit and function of the original OMC 3853807 bearing it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2100?\u003c\/strong\u003e Ordering 18-2100 gets you one Sierra link belt gimbal bearing, ready for installation in place of OMC part 3853807.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092006619,"sku":"SIE-18-2100","price":59.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__13531.1772266902.500.750.jpg?v=1785188182"},{"product_id":"sierra-18-2110-power-trim-hose-small-diameter-1-8in-i-d-replaces-mercury-mariner-32-88005-32-45327-outboard-trim-system","title":"Sierra Tab Washer 18-2110, Small Diameter, Replaces Mercury 32-45327 32-88005 32-97153A1","description":"\u003cp\u003eThe Sierra 18-2110 is a small diameter tab washer used with trim tab hardware on applicable engines. It is a direct replacement for Mercury\/Mercruiser tab washers, cross-referencing to OEM numbers 32-45327, 32-88005, and 32-97153A1. Two washers are required per engine for a complete, proper installation, so buyers typically order in pairs to match the original hardware count.\u003c\/p\u003e\u003cp\u003eThis small diameter washer is a distinct part from the Sierra 18-2111, which is the large diameter version of the same washer design and carries its own separate OEM cross-references (32-88006, 32-45959, 32-97154A1). Ordering the correct diameter for your application ensures the tab washer seats and fits as intended, so confirm which size your original hardware uses before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Small Diameter Tab Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Required:\u003c\/strong\u003e 2 required per engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999237057\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-45327, 32-88005, 32-97153A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32-45327\u003c\/li\u003e\n\u003cli\u003e32-88005\u003c\/li\u003e\n\u003cli\u003e32-97153A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2110 tab washer used for?\u003c\/strong\u003e It is a small diameter tab washer used with trim tab hardware, part number 18-2110, and is installed as a direct equivalent to the original Mercury\/Mercruiser washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many 18-2110 washers do I need per engine?\u003c\/strong\u003e Two of the Sierra 18-2110 tab washers are required per engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does Sierra 18-2110 replace?\u003c\/strong\u003e Sierra 18-2110 cross-references to Mercury\/Mercruiser numbers 32-45327, 32-88005, and 32-97153A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between 18-2110 and 18-2111?\u003c\/strong\u003e 18-2110 is the small diameter tab washer, while 18-2111 is the large diameter version of the same washer, replacing a different set of OEM numbers (32-88006, 32-45959, 32-97154A1). They are separate part numbers, so the correct diameter must be ordered for the application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2110 washer small or large diameter?\u003c\/strong\u003e The Sierra 18-2110 is the small diameter tab washer in this washer family; the large diameter counterpart is sold under part number 18-2111.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2110 replace Mercury 32-88005?\u003c\/strong\u003e Yes, Mercury\/Mercruiser part 32-88005 is one of the numbers replaced by Sierra 18-2110.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2110 replace 32-97153A1?\u003c\/strong\u003e Yes, 32-97153A1 is included among the OEM numbers that Sierra 18-2110 replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2110 tab washer weigh?\u003c\/strong\u003e The Sierra 18-2110 tab washer weighs 0.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Sierra 18-2110 washers sold individually?\u003c\/strong\u003e Since 2 washers are required per engine, buyers should confirm quantity when ordering 18-2110 to match the required count for their installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is listed for the Sierra 18-2110?\u003c\/strong\u003e The UPC associated with Sierra 18-2110 is 030999237057.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092039387,"sku":"SIE-18-2110","price":78.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2110_lg__16418.1558121413.500.750.jpg?v=1785188900"},{"product_id":"sierra-18-2104-heavy-duty-u-joint-cross-bearing-replaces-mercury-75832a2-fits-mercruiser-alpha-one-gen-ii-drive-shaft-housing","title":"Sierra U-Joint Cross Bearing 18-2104, Replaces 75832A2, Fits Alpha I and TR\/TRS Units","description":"\u003cp\u003eThe Sierra 18-2104 is a heavy duty U-joint cross bearing (universal joint) designed for use in the gimbal\/drive shaft coupling of outdrive units. It transmits rotational power through an angled connection while allowing the drive shaft to articulate, a wear point that requires periodic replacement as boats accumulate hours. This U-joint is built to heavy duty specification for durable service under continuous marine loads.\u003c\/p\u003e\u003cp\u003eEach unit includes both a straight grease fitting and a 90 degree grease fitting, giving installers flexibility to fit the zerk fitting in whichever orientation clears surrounding components during service, which simplifies routine lubrication once installed. The cross bearing is intended as a direct fit replacement for the OEM part it supersedes, using the same mounting geometry and bearing cup arrangement as the original equipment.\u003c\/p\u003e\u003cp\u003eThe Sierra 18-2104 fits all #1 and ALPHA I units within serial number range 1684188-B418818, and also fits TR\/TRS and II SSM drive units. Because it is designated for this specific serial number range and unit type, confirm your outdrive's serial number and unit designation before ordering to ensure correct fitment.\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 18-2104\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e U-Joint Cross Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuty Rating:\u003c\/strong\u003e Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrease Fittings Included:\u003c\/strong\u003e Straight and 90 degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 3.5 x 3.5 x 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.22 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999310293\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits all #1 and ALPHA I units, S\/N 1684188-B418818\u003c\/li\u003e\n\u003cli\u003eAlso fits TR\/TRS and II SSM units\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e75832\u003c\/li\u003e\n\u003cli\u003e75832A2\u003c\/li\u003e\n\u003cli\u003e75832T\u003c\/li\u003e\n\u003cli\u003e758321\u003c\/li\u003e\n\u003cli\u003e75832T1\u003c\/li\u003e\n\u003cli\u003e75832A1\u003c\/li\u003e\n\u003cli\u003e75832A3\u003c\/li\u003e\n\u003cli\u003e58749\u003c\/li\u003e\n\u003cli\u003e41431\u003c\/li\u003e\n\u003cli\u003e36312\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2104 U-joint replace?\u003c\/strong\u003e The Sierra 18-2104 replaces OEM numbers 75832, 75832A2, 75832T, 758321, 75832T1, 75832A1, 75832A3, 58749, 41431, and 36312.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat units does the 18-2104 U-joint fit?\u003c\/strong\u003e It fits all #1 and ALPHA I units within serial number range 1684188-B418818, and also fits TR\/TRS and II SSM units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2104 U-joint weigh?\u003c\/strong\u003e The Sierra 18-2104 U-joint cross bearing weighs 1.22 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this U-joint?\u003c\/strong\u003e The Sierra 18-2104 measures 3.5 x 3.5 x 1.25 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat grease fittings come with the 18-2104?\u003c\/strong\u003e Both a straight grease fitting and a 90 degree grease fitting are included with the Sierra 18-2104, so the installer can choose the orientation that clears surrounding components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2104 a heavy duty U-joint?\u003c\/strong\u003e Yes, the 18-2104 is built to a heavy duty specification for durable service in the drive shaft coupling of the outdrive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if this U-joint fits my outdrive?\u003c\/strong\u003e Check your outdrive's unit type and serial number; the 18-2104 fits #1 and ALPHA I units in the S\/N range 1684188-B418818, and TR\/TRS and II SSM units. Confirm your serial number falls in that range before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2104 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-2104 is manufactured and sold under the Sierra brand as a direct replacement for the listed OEM cross-reference numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-2104 manufactured?\u003c\/strong\u003e The Sierra 18-2104 U-joint cross bearing is manufactured in China.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2104?\u003c\/strong\u003e Ordering the Sierra 18-2104 includes the U-joint cross bearing along with a straight grease fitting and a 90 degree grease fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2104 be used on TR\/TRS units?\u003c\/strong\u003e Yes, in addition to #1 and ALPHA I units, the Sierra 18-2104 also fits TR\/TRS and II SSM units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2104 fit Alpha One drives outside the listed serial number range?\u003c\/strong\u003e The Sierra 18-2104 is designated for ALPHA I units within S\/N range 1684188-B418818; units outside this serial range should be verified against a different part number before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092104923,"sku":"SIE-18-2104","price":47.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2104_lg__52980.1558139701.500.750.jpg?v=1785188873"},{"product_id":"sierra-18-2125-yoke-assembly-short-replaces-mercury-46020t-for-mercruiser-alpha-one-gen-ii-i-o-drives","title":"Sierra 18-2125 Drive Shaft Yoke, Replaces Mercury Marine 46020T","description":"\u003cp\u003eThe Sierra 18-2125 is a drive shaft yoke assembly built as a direct equivalent for Mercury Marine part 46020T. The yoke connects the drive shaft to the u-joint coupler in the stern drive gimbal assembly, transmitting engine torque through the drive train. It is finished in black and constructed for reliable, repeated use in a marine environment where corrosion resistance and dimensional accuracy matter.\u003c\/p\u003e\u003cp\u003eThis yoke is sold as a single component (one yoke per package) and is intended as a replacement part when the original yoke shows wear, cracking, or play at the u-joint connection. Because it is manufactured to match the original Mercury Marine 46020T equivalent, it installs using the same fasteners and mating parts as the original part it replaces, 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 18-2125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Yoke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\/Finish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 7.4 x 3.4 x 3.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.2 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 030999311436\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits applications that originally used Mercury Marine part number 46020T.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 46020T\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2125 yoke replace?\u003c\/strong\u003e It is a direct equivalent for Mercury Marine part number 46020T, so it installs anywhere that original part was used.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2125 an OEM Mercury Marine part or aftermarket?\u003c\/strong\u003e The 18-2125 is manufactured by Sierra as an aftermarket equivalent to the Mercury Marine 46020T yoke, not an original Mercury Marine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2125 yoke?\u003c\/strong\u003e It has a black finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2125 weigh?\u003c\/strong\u003e This yoke weighs 2.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2125 yoke?\u003c\/strong\u003e The item measures 7.4 x 3.4 x 3.3 inches (length x width x height).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many yokes come in the package?\u003c\/strong\u003e The 18-2125 is sold as a single yoke, one item per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat signals that a drive shaft yoke needs replacement?\u003c\/strong\u003e Cracking, wear, or excess play at the u-joint connection point on the existing yoke indicates it is time to replace it with a part like the Sierra 18-2125.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes installing the 18-2125 require modification to the drive shaft housing?\u003c\/strong\u003e No. Since the Sierra 18-2125 is built to match the Mercury Marine 46020T it replaces, it uses the same mounting points and mating parts without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2125 yoke?\u003c\/strong\u003e The UPC for the Sierra 18-2125 drive shaft yoke is 030999311436.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does the yoke fit in the drive train?\u003c\/strong\u003e The 18-2125 yoke connects the drive shaft to the u-joint coupler in the gimbal assembly, transmitting torque from the engine through the drive shaft.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092170459,"sku":"SIE-18-2125","price":81.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2125_lg__39226.1558121959.500.750.jpg?v=1785187970"},{"product_id":"center-socket-39383t-for-mercruiser-alpha-one-gen-ii-bravo-omc-cobra-u-joint-drive-shaft-sierra-18-2128","title":"Sierra 18-2128 Center Socket for MerCruiser Alpha One, Bravo, MC-I, MC II, TS, IA\/IB\/IC and EZ, Gen II, and OMC Cobra Drives","description":"\u003cp\u003eThe Sierra 18-2128 Center Socket is a stern drive coupling component that connects the drive shaft assembly to the U-joint, transferring power from the engine to the outdrive. It is a fit-specific part, meaning it is engineered to match particular drive units rather than serving as a universal fit across all stern drives, so confirming the correct application before ordering is important.\u003c\/p\u003e\u003cp\u003eThis Center Socket is designed for MerCruiser IA\/IB\/IC and EZ, MC-I, R, MR, Alpha One, and Gen II drives up to serial number 0L949778, as well as MerCruiser Bravo drives up to serial number 0M111207, MC II, and TS drives. It also fits all OMC Cobra sterndrives. Sierra states that each part it manufactures meets or exceeds the specifications of the original equipment part it replaces, making this Center Socket a direct functional replacement for the applicable OEM component.\u003c\/p\u003e\u003cp\u003eThe Center Socket ships as a single component and is sold individually. It weighs 2.04 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 18-2128\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Center Socket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311467\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Fit-specific; confirm drive application before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser IA\/IB\/IC and EZ, MC-I, R, MR, Alpha One, and Gen II (serial number 0L949778 and below)\u003c\/li\u003e\n\u003cli\u003eMerCruiser Bravo (serial number 0M111207 and below), MC II, and TS\u003c\/li\u003e\n\u003cli\u003eAll OMC Cobra sterndrives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e393\u003c\/li\u003e\n\u003cli\u003e735\u003c\/li\u003e\n\u003cli\u003e393831\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2128 Center Socket fit?\u003c\/strong\u003e This Center Socket fits MerCruiser IA\/IB\/IC and EZ, MC-I, R, MR, Alpha One, and Gen II drives with serial number 0L949778 and below, MerCruiser Bravo drives with serial number 0M111207 and below, MC II, TS drives, and all OMC Cobra sterndrives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2128 Center Socket a universal fit for all stern drives?\u003c\/strong\u003e No. Sierra designates part 18-2128 as a fit-specific component, so it is built for the listed MerCruiser and OMC Cobra drive applications rather than a one-size-fits-all fit, and confirming your drive model and serial number before ordering is recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2128 Center Socket replace?\u003c\/strong\u003e The Sierra 18-2128 Center Socket cross-references to OEM numbers 393, 735, and 393831.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2128 Center Socket weigh?\u003c\/strong\u003e The Sierra 18-2128 Center Socket weighs 2.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many Center Sockets come in the package?\u003c\/strong\u003e Part 18-2128 is sold as a single Center Socket, with a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra Center Socket perform the same as the original equipment part?\u003c\/strong\u003e Sierra states that the 18-2128 Center Socket meets or exceeds the specifications of the original equipment part it replaces, so it functions as a direct replacement in its listed applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2128 Center Socket fit a MerCruiser Bravo drive with a serial number above 0M111207?\u003c\/strong\u003e The 18-2128 Center Socket is listed for MerCruiser Bravo drives with serial number 0M111207 and below; drives above that serial number are not covered by this fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2128 fit OMC Cobra sterndrives?\u003c\/strong\u003e Yes, the Sierra 18-2128 Center Socket fits all OMC Cobra sterndrives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a Center Socket used for on a stern drive?\u003c\/strong\u003e A Center Socket, such as Sierra part 18-2128, is a coupling component within the drive shaft assembly that connects to the U-joint to transmit engine power to the stern drive unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the Sierra 18-2128 Center Socket something I can do myself?\u003c\/strong\u003e Because the 18-2128 Center Socket is part of the drive shaft coupling assembly and fit-specific to the drive model, Sierra recommends consulting an authorized dealer to confirm the correct fit and installation for your specific drive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2128 fit MerCruiser Alpha One drives?\u003c\/strong\u003e Yes, the Sierra 18-2128 Center Socket is listed for MerCruiser Alpha One drives, along with IA\/IB\/IC and EZ, MC-I, R, MR, and Gen II drives at or below serial number 0L949778.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092334299,"sku":"SIE-18-2128","price":91.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2128_lg__05380.1649077556.500.750.jpg?v=1785188518"},{"product_id":"sierra-18-2149-shift-cable-guide-replaces-mercruiser-22879-for-alpha-bravo-shift-cables","title":"Sierra 18-2149 Shift Cable End Kit - Replaces OEM 43433 for Mercruiser Shift Cables","description":"\u003cp\u003eThe Sierra 18-2149 Shift Cable End Kit is a precision-machined replacement component for Mercruiser shift cable systems. It is engineered to meet or exceed the performance of the original equipment part it replaces, giving boat owners a reliable way to restore proper shift cable function without sourcing the OEM component directly.\u003c\/p\u003e\u003cp\u003eThis end kit is a compact, machined part measuring 0.39 x 0.39 x 0.39 inches and weighing 0.04 pounds, making it a small but essential piece of the shift cable assembly. Sierra manufactures this part to consistent tolerances so it seats correctly and functions reliably within the shift cable linkage. As with all Sierra marine parts, the 18-2149 is built to stand up to the harsh marine environment and the demands of modern high-horsepower engines.\u003c\/p\u003e\u003cp\u003eThe 18-2149 is used in Mercruiser shift cable applications and directly cross-references to OEM part number 43433, so it can be ordered as a drop-in replacement when the original end kit has worn out or failed.\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 18-2149\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercruiser Shift Cable End Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 43433\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\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257712\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for use with Mercruiser shift cable systems.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e43433\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2149?\u003c\/strong\u003e It is a Shift Cable End Kit made by Sierra, designed for use with Mercruiser shift cable systems and identified by part number 18-2149.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-2149 replace?\u003c\/strong\u003e The Sierra 18-2149 Shift Cable End Kit cross-references directly to OEM part number 43433.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2149 fit my Mercruiser shift cable?\u003c\/strong\u003e The Sierra 18-2149 Shift Cable End Kit is designed for use with Mercruiser shift cable systems and is a direct replacement for OEM part 43433.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2149 weigh?\u003c\/strong\u003e The Sierra 18-2149 Shift Cable End Kit weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-2149 Shift Cable End Kit?\u003c\/strong\u003e This part measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2149 a genuine Sierra part or aftermarket?\u003c\/strong\u003e Yes, the 18-2149 is a genuine Sierra Marine part, manufactured to meet or exceed the OEM specification of the part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the shift cable end kit have?\u003c\/strong\u003e The Sierra 18-2149 has a machined exterior finish for a precise, durable fit within the shift cable assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-2149?\u003c\/strong\u003e The 18-2149 is sold as a complete shift cable end kit, the machined end component used in Mercruiser shift cable linkages.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-2149 different from the OEM 43433 part?\u003c\/strong\u003e Functionally, the 18-2149 is built as a direct equivalent to OEM part 43433, engineered to meet or exceed the original part's performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2149 durable for marine use?\u003c\/strong\u003e Yes, this machined shift cable end kit is manufactured by Sierra to withstand the demands of the marine environment and high-horsepower engine use.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092596443,"sku":"SIE-18-2149","price":10.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2149_lg__73165.1558122909.500.750.jpg?v=1785188194"},{"product_id":"sierra-18-2145e-shift-cable-for-mercruiser-bravo-one-two-three-drives-replaces-mercury-815471a3","title":"Sierra Shift Cable 18-2145E, Replaces Mercury Marine 815471\/815471A3\/815471A6, Bravo One\/Two\/Three \u0026 Integrated Transom","description":"\u003cp\u003eThe Sierra 18-2145E is a replacement shift cable engineered for Mercury Marine Bravo drive units. It connects the shift control at the helm to the drive unit, transmitting the operator's shift input into gear engagement, and is a direct fit for boats using Bravo One, Two, and Three drives (all ratios) as well as Bravo One X\/Two X\/Three X, Bravo One XR\/XZ, and Bravo One XR Sportmaster configurations, including Integrated Transom applications.\u003c\/p\u003e\u003cp\u003eConstructed from metal with an aluminum handle and a screw-type handle attachment, this cable is built to hold up to repeated shifting cycles in a marine environment. It carries a round, machined cable end and is designed to install as a like-for-like swap for the OEM cable it replaces, restoring precise, positive shift engagement without slop or hesitation at the control end.\u003c\/p\u003e\u003cp\u003eThis shift cable directly replaces Mercury Marine part numbers 815471, 815471A3, and 815471A6, so it is a straightforward upgrade or replacement for boats currently running one of those OEM cables.\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 18-2145E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Type:\u003c\/strong\u003e Pull Handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Attachment:\u003c\/strong\u003e Screw\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 1.28 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282167325\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 815471, 815471A3, 815471A6\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBravo One, Two, \u0026amp; Three (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One X\/Two X, Three X (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One XR\/XZ (All Ratios)\u003c\/li\u003e\n\u003cli\u003eBravo One XR Sportmaster (All Ratios) \u0026amp; Integrated Transom\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e815471\u003c\/li\u003e\n\u003cli\u003e815471A3\u003c\/li\u003e\n\u003cli\u003e815471A6\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2145E shift cable fit?\u003c\/strong\u003e The 18-2145E fits Bravo One, Two, and Three drives (all ratios), Bravo One X\/Two X, Three X (all ratios), Bravo One XR\/XZ (all ratios), and Bravo One XR Sportmaster (all ratios), including Integrated Transom applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2145E a direct replacement for Mercury Marine 815471?\u003c\/strong\u003e Yes, the Sierra 18-2145E directly replaces Mercury Marine part numbers 815471, 815471A3, and 815471A6.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this shift cable weigh?\u003c\/strong\u003e The Sierra 18-2145E shift cable weighs 1.28 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2145E shift cable made from?\u003c\/strong\u003e It is made from metal with an aluminum handle attached by a screw-type handle attachment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this cable work with Bravo One XR Sportmaster drives?\u003c\/strong\u003e Yes, the 18-2145E is designed to fit Bravo One XR Sportmaster (all ratios) as well as Integrated Transom setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2145E fit an Alpha One drive?\u003c\/strong\u003e No, this specific cable, the 18-2145E, is designed for Bravo One, Two, and Three drive units and their X and XR\/XZ variants, not Alpha drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and finish is the cable end on the 18-2145E?\u003c\/strong\u003e The 18-2145E has a round, machined cable end and features a white-colored handle assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2145E genuine OEM or aftermarket?\u003c\/strong\u003e The 18-2145E is a Sierra-manufactured aftermarket shift cable built to replace the OEM Mercury Marine 815471, 815471A3, and 815471A6 cables.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2145E?\u003c\/strong\u003e Ordering the 18-2145E includes one complete Sierra shift cable assembly with handle end fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2145E attached to the shift control?\u003c\/strong\u003e The 18-2145E connects using a screw-type handle attachment at the aluminum handle end.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092629211,"sku":"SIE-18-2145E","price":185.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__49183.1753468516.500.750.jpg?v=1785188183"},{"product_id":"shift-shaft-housing-bushing-18-2154-replaces-mercury-23-30617a2-for-mercruiser-sterndrive","title":"Sierra Shift Shaft Housing Bushing 18-2154, Replaces Mercury Marine 23-30617A2","description":"\u003cp\u003eThe Sierra 18-2154 Shift Shaft Housing Bushing is a replacement component for the shift shaft housing assembly on Mercruiser sterndrive and inboard shift systems. This bushing supports the shift shaft as it passes through the housing, reducing wear, play, and binding at the pivot point so shift engagement stays smooth and precise. Over time the factory bushing wears from repeated shift-lever movement and exposure to marine conditions, which can introduce slop into the shift linkage; installing a fresh Sierra bushing restores tight, accurate shift feel.\u003c\/p\u003e\u003cp\u003eSierra manufactures the 18-2154 as a direct cross-reference to Mercury Marine part number 23-30617A2, so it installs in the same location using the same mounting relationship as the original equipment part. It is sold as a single bushing (one unit per package) and is sized to match the shift shaft housing bore it replaces.\u003c\/p\u003e\u003cp\u003eThis part is identified by UPC 030999311580 and falls within Sierra's Mercruiser Shift Cables product line, making it easy for boat owners and marine technicians to source the correct bushing when servicing shift shaft housings rather than replacing the entire housing assembly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2154\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Shift Shaft Housing Bushing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercruiser Shift Cables\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 030999311580\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 23-30617A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDesigned for use in Mercruiser shift shaft housing assemblies as a direct replacement for the original bushing.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 23-30617A2\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2154 Shift Shaft Housing Bushing fit?\u003c\/strong\u003e The Sierra 18-2154 is designed for Mercruiser shift shaft housing assemblies, replacing the bushing that supports the shift shaft where it passes through the housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2154 bushing a genuine OEM part or aftermarket?\u003c\/strong\u003e Sierra 18-2154 is an aftermarket replacement bushing manufactured to cross-reference directly with Mercury Marine 23-30617A2, so it is not a Mercury Marine branded part but is built to fit the same application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2154 replace Mercury Marine part 23-30617A2?\u003c\/strong\u003e Yes, Sierra 18-2154 is the direct cross-reference for Mercury Marine 23-30617A2, so it installs in the same shift shaft housing location as that original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the shift shaft housing bushing weigh?\u003c\/strong\u003e The Sierra 18-2154 Shift Shaft Housing Bushing weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bushings come in one package of 18-2154?\u003c\/strong\u003e One Sierra 18-2154 Shift Shaft Housing Bushing is included per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is used to verify I am ordering the correct part?\u003c\/strong\u003e Sierra 18-2154 is identified by UPC 030999311580, which can be used to confirm you are ordering the correct shift shaft housing bushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace the shift shaft housing bushing?\u003c\/strong\u003e A worn shift shaft housing bushing allows play or looseness in the shift shaft, which can cause imprecise or sloppy shift lever feel; replacing it with the Sierra 18-2154 restores a tighter fit at that pivot point.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I replace just the bushing instead of the entire shift shaft housing?\u003c\/strong\u003e Yes, the Sierra 18-2154 lets you replace only the worn bushing within the shift shaft housing assembly rather than sourcing the complete housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of Mercruiser parts does 18-2154 belong to?\u003c\/strong\u003e Sierra lists the 18-2154 Shift Shaft Housing Bushing within its Mercruiser Shift Cables product line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2154 easy to install?\u003c\/strong\u003e The 18-2154 is a single-piece bushing sized to the shift shaft housing bore, allowing it to be installed in place of the worn original bushing during routine shift linkage service.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092661979,"sku":"SIE-18-2154","price":20.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2154_lg__46243.1558123098.500.750.jpg?v=1785188952"},{"product_id":"sierra-18-2155-shift-shaft-housing-bushing-for-mercury-outboards-replaces-mercury-25-25439","title":"Sierra 18-2155 Shift Shaft Housing Bushing, Replaces Mallory 9-76134, Aluminum","description":"\u003cp\u003eThe Sierra 18-2155 Shift Shaft Housing Bushing is an aluminum bushing used in Mercury outboard propeller shaft assemblies. It is a knob-type hardware component that fits into the shift shaft housing, providing a wear surface for shaft engagement. The bushing is machined from aluminum for durability and resistance to corrosion in a marine environment, and it is finished with a painted white coating for a clean, modern appearance that matches surrounding outboard hardware.\u003c\/p\u003e\u003cp\u003eEach unit ships as a single Shift Shaft Housing Bushing, sized as a direct fit for applications calling for Sierra part number 18-2155 or its cross-referenced equivalent. Because shift shaft components see repeated mechanical engagement every time the outboard is shifted, the bushing is a wear item worth keeping on hand for routine maintenance or shift-linkage 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 18-2155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Shift Shaft Housing Bushing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Painted\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 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e 1 Shift Shaft Housing Bushing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311597\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference (Mallory):\u003c\/strong\u003e 9-76134\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUsed in Mercury outboard propeller shaft assemblies.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMallory 9-76134\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2155 used for?\u003c\/strong\u003e The Sierra 18-2155 is a Shift Shaft Housing Bushing used in Mercury outboard propeller shaft assemblies, providing a wear surface where the shift shaft engages the housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-2155 the same part as Mallory 9-76134?\u003c\/strong\u003e Yes, Sierra part 18-2155 cross-references directly to Mallory number 9-76134, so either number identifies the same shift shaft housing bushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the shift shaft housing bushing made of?\u003c\/strong\u003e It is made of aluminum, chosen for its resistance to corrosion and durability in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2155 bushing weigh?\u003c\/strong\u003e The Sierra 18-2155 Shift Shaft Housing Bushing weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does this bushing come in?\u003c\/strong\u003e It is finished in white with a painted coating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bushings are included in one order?\u003c\/strong\u003e One order of the Sierra 18-2155 includes a single Shift Shaft Housing Bushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e This is a genuine Sierra-branded component, part number 18-2155, manufactured under Sierra's own part numbering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the bushing?\u003c\/strong\u003e The Sierra 18-2155 Shift Shaft Housing Bushing has a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Mallory 9-76134 number to order this part?\u003c\/strong\u003e Yes, because Mallory 9-76134 and Sierra 18-2155 cross-reference to the same bushing, searching either number will lead to this component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of equipment does 18-2155 fit?\u003c\/strong\u003e It is designed for use in Mercury outboard propeller shaft assemblies where a shift shaft housing bushing is required.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092727515,"sku":"SIE-18-2155","price":20.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2155_lg__20051.1558123156.500.750.jpg?v=1785188598"},{"product_id":"shift-cable-assembly-for-mercruiser-alpha-one-gen-1-sterndrives-s-n-6225577-up-aft-installation-replaces-19543a2-865436a02","title":"Sierra Shift Cable Assembly 18-2157, Replaces 19543A2, for Mercruiser #1 Drive Forward Installation","description":"\u003cp\u003eThe Sierra 18-2157 is a shift cable assembly built for Mercruiser #1 Drives within the serial number range 1562900-6225576, configured for forward installation into the bell housing. It uses an old style stranded core wire with a soldered tip, a design carried over from the original equipment configuration on these drive units, and it is paired with a 63 inch conduit to route the cable from the control station to the drive.\u003c\/p\u003e\u003cp\u003eBecause this cable is built for forward installation into the bell housing, it requires Sierra support tube 18-2160, which is not included and must be ordered separately to complete the installation. Selecting the correct shift cable assembly matters for reliable shifting between forward, neutral, and reverse, and this assembly is a direct fit replacement for the OEM numbers listed below, so it drops into the same mounting points and connects to the same shift linkage as the original part.\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 18-2157\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Shift Cable Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser #1 Drives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial Number Range:\u003c\/strong\u003e 1562900-6225576\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Orientation:\u003c\/strong\u003e Forward installation into bell housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Core:\u003c\/strong\u003e Old style stranded core wire with soldered tip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Length:\u003c\/strong\u003e 63 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Accessory:\u003c\/strong\u003e Support Tube 18-2160 (sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311610\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 19543A2, 41951A1, 19543A8, 19543A10, 19543A4, 66065A1, 66069A2, 73679A2, 865436A02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser #1 Drives, Serial Number 1562900-6225576, forward installation into bell housing\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e19543A2\u003c\/li\u003e\n\u003cli\u003e41951A1\u003c\/li\u003e\n\u003cli\u003e19543A8\u003c\/li\u003e\n\u003cli\u003e19543A10\u003c\/li\u003e\n\u003cli\u003e19543A4\u003c\/li\u003e\n\u003cli\u003e66065A1\u003c\/li\u003e\n\u003cli\u003e66069A2\u003c\/li\u003e\n\u003cli\u003e73679A2\u003c\/li\u003e\n\u003cli\u003e865436A02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the Sierra 18-2157 shift cable assembly fit?\u003c\/strong\u003e The 18-2157 is built for Mercruiser #1 Drives within the serial number range 1562900-6225576, for forward installation into the bell housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2157 replace my original Mercruiser shift cable?\u003c\/strong\u003e Yes, this Sierra 18-2157 assembly is a direct replacement for OEM numbers 19543A2, 41951A1, 19543A8, 19543A10, 19543A4, 66065A1, 66069A2, 73679A2, and 865436A02.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the conduit on the 18-2157 shift cable?\u003c\/strong\u003e The conduit measures 63 inches, matching the length used on the original Mercruiser #1 Drive forward installation setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a support tube included with the 18-2157?\u003c\/strong\u003e No, the 18-2157 shift cable assembly requires Sierra support tube 18-2160 for forward installation into the bell housing, and it must be purchased separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of wire core does the 18-2157 use?\u003c\/strong\u003e It uses an old style stranded core wire with a soldered tip, the same wire construction found on the original Mercruiser #1 Drive shift cable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2157 be installed for aft installation instead of forward?\u003c\/strong\u003e No, the 18-2157 is configured specifically for forward installation into the bell housing on Mercruiser #1 Drives serial numbers 1562900-6225576.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2157 shift cable assembly weigh?\u003c\/strong\u003e The Sierra 18-2157 weighs 1.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2157 shift cable assembly?\u003c\/strong\u003e The UPC for the 18-2157 is 030999311610.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2157 fit a Mercruiser drive with a serial number above 6225576?\u003c\/strong\u003e No, the 18-2157 is designated for Mercruiser #1 Drives in the serial number range 1562900-6225576; drives with higher serial numbers use a different shift cable configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2157 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-2157 is a Sierra-branded replacement shift cable assembly engineered to match the fit and function of the original Mercruiser equipment it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092760283,"sku":"SIE-18-2157","price":76.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2157_lg__71608.1558123288.500.750.jpg?v=1785329183"},{"product_id":"sierra-18-2145-shift-cable-for-mercruiser-bravo-sterndrive-replaces-815471a3-865437a02-19297a3","title":"Sierra 18-2145 Shift Cable for Mercruiser #1 Drives (S\/N 1562900-6225576), Forward Installation, Replaces 815471A3, 43432A2","description":"\u003cp\u003eThe Sierra 18-2145 is a shift cable engineered for Mercruiser #1 Drives within the S\/N range 1562900-6225576, designed for forward installation into the bell housing. It uses new style armored strand construction with no support tube, paired with a 54 inch conduit, so the cable transmits shift input from the control station to the drive with a durable, flexible core built for the marine environment.\u003c\/p\u003e\u003cp\u003eThe cable ships with a complete hardware package, including a Sierra 18-0318 washer and a 0.375-24 nut, so the installation has the fasteners needed to complete the job without sourcing them separately. Its alloy steel construction and white finish are built to hold up under repeated shifting and outdoor marine exposure. Overall product dimensions are 19 inches L x 14 inches W, and the unit weighs 1.2 pounds.\u003c\/p\u003e\u003cp\u003eThis shift cable directly replaces a range of original equipment part numbers, making it a straightforward swap for boats using the applicable Mercruiser #1 Drive within the stated serial number range. Confirm the drive's serial number falls within 1562900-6225576 and that the installation is a forward bell housing configuration before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2145\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Shift Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser #1 Drives, S\/N 1562900-6225576\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Forward installation into bell housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Construction:\u003c\/strong\u003e New style armored strand (no support tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Length:\u003c\/strong\u003e 54 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Hardware:\u003c\/strong\u003e Hardware package with washer and nut (0.375-24)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 19 inches L x 14 inches W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999621153\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser #1 Drives, S\/N 1562900-6225576, forward installation into bell housing\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e815471A3\u003c\/li\u003e\n\u003cli\u003e815471A6\u003c\/li\u003e\n\u003cli\u003e85147A5\u003c\/li\u003e\n\u003cli\u003e865437A02\u003c\/li\u003e\n\u003cli\u003e43432A2\u003c\/li\u003e\n\u003cli\u003e19297A3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2145 shift cable used for?\u003c\/strong\u003e It transmits shift control input from the helm to the drive on Mercruiser #1 Drives within S\/N range 1562900-6225576, and is installed forward into the bell housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2145 fit any Mercruiser drive?\u003c\/strong\u003e No, it is built specifically for Mercruiser #1 Drives with serial numbers falling between 1562900 and 6225576 for forward installation into the bell housing; drives outside that serial range require a different cable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2145 replace?\u003c\/strong\u003e The 18-2145 replaces 815471A3, 815471A6, 85147A5, 865437A02, 43432A2, and 19297A3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-2145 shift cable?\u003c\/strong\u003e The package includes the shift cable with a 54 inch conduit plus a hardware package containing a washer and a 0.375-24 nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the conduit length on this shift cable?\u003c\/strong\u003e The Sierra 18-2145 has a 54 inch conduit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2145 an aft or forward installation cable?\u003c\/strong\u003e It is a forward installation cable, designed to install into the bell housing on the forward side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2145 use a support tube?\u003c\/strong\u003e No, it uses new style armored strand construction with no support tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2145 made from?\u003c\/strong\u003e It is made from alloy steel with a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2145 shift cable weigh?\u003c\/strong\u003e The 18-2145 weighs 1.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2145 shift cable?\u003c\/strong\u003e Overall dimensions are 19 inches L x 14 inches W.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2145 built to OEM equivalent quality?\u003c\/strong\u003e Yes, the 18-2145 is built to meet or exceed the specifications of the original equipment shift cables it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my drive's serial number is compatible with the 18-2145?\u003c\/strong\u003e Check that your Mercruiser #1 Drive's serial number falls within the 1562900-6225576 range, which is the fitment range for the 18-2145.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092793051,"sku":"SIE-18-2145","price":123.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2145_lg__35245.1558122645.500.750.jpg?v=1785188519"},{"product_id":"sierra-18-2146-u-joint-shaft-coupler-yoke-replaces-mercury-59830a1-mercruiser-alpha-one-gen-ii-r-mr-bravo-blackhawk-omc-cobra","title":"Sierra 18-2146 Yoke, Replaces Mercruiser 59830A7, Fits Alpha One, Bravo \u0026 Cobra Drives","description":"\u003cp\u003eThe Sierra 18-2146 Yoke is a drive coupler yoke used to connect the engine coupler to the U-joint shaft on outdrive and sterndrive setups. It is built as a direct-fit replacement for the original equipment yoke and is designed to restore proper alignment and torque transfer between the engine and drive unit. This yoke fits All #1, R, MR, Alpha I, and Alpha I Gen II drives, as well as Bravo and Blackhawk drives, and it also fits Cobra sterndrives from 1986 and up. It is constructed of metal and finished in white, with compact dimensions of 0.39 x 0.39 x 0.39 inches, making it a small but critical connecting component in the drive train. The yoke is sold as a single piece and is intended as a like-for-like swap for the original part it replaces, meeting or exceeding the performance of the OEM component. Because this yoke crosses over multiple engine and drive brands, it is commonly used as a direct replacement for OEM and aftermarket yokes sold under GLM, Evinrude\/Johnson, Mallory, Mercruiser, OMC, and Volvo Penta part numbers. Confirm your drive model against the fitment list below before ordering to ensure correct compatibility.\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 18-2146\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Yoke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.43 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999752635\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll #1, R, MR, Alpha I, Alpha I Gen II, Bravo \u0026amp; Blackhawk drives\u003c\/li\u003e\n\u003cli\u003eCobra drives, 1986 and up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 28315\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 912212\u003c\/li\u003e\n\u003cli\u003eMallory 9-72401\u003c\/li\u003e\n\u003cli\u003eMercruiser 59830A7\u003c\/li\u003e\n\u003cli\u003eMercruiser 59830A1\u003c\/li\u003e\n\u003cli\u003eOMC 912212\u003c\/li\u003e\n\u003cli\u003eOMC 3850815\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3850815\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the Sierra 18-2146 Yoke fit?\u003c\/strong\u003e This yoke fits All #1, R, MR, Alpha I, and Alpha I Gen II drives, as well as Bravo and Blackhawk drives, and it also fits Cobra drives from 1986 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2146 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-2146 is a Sierra-manufactured replacement part designed to meet or exceed the performance of the original equipment yoke it replaces, rather than a part sourced from the original engine or drive manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2146 Yoke cross-reference to?\u003c\/strong\u003e It is interchangeable with GLM 28315, Evinrude\/Johnson 912212, Mallory 9-72401, Mercruiser 59830A7 and 59830A1, OMC 912212 and 3850815, and Volvo Penta 3850815.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2146 Yoke made of?\u003c\/strong\u003e The Sierra 18-2146 Yoke is made of metal, finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2146 Yoke weigh?\u003c\/strong\u003e The Sierra 18-2146 Yoke weighs 4.43 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2146 Yoke?\u003c\/strong\u003e The yoke measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2146 Yoke come as a single piece?\u003c\/strong\u003e Yes, the Sierra 18-2146 Yoke is sold individually as one piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-2146 fit a Cobra drive built before 1986?\u003c\/strong\u003e The 18-2146 Yoke is listed as a fit for Cobra drives from 1986 and up; fitment for earlier Cobra drives is not specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-2146 Yoke be used on both Alpha One and Bravo drives?\u003c\/strong\u003e Yes, this same yoke, part number 18-2146, fits Alpha I, Alpha I Gen II, and Bravo drives, along with All #1, R, MR, and Blackhawk drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I identify the correct yoke for my Mercruiser drive?\u003c\/strong\u003e If your Mercruiser drive originally used part number 59830A7 or 59830A1, the Sierra 18-2146 Yoke is the correct cross-reference replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092858587,"sku":"SIE-18-2146","price":149.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2146_lg__68086.1558122774.500.750.jpg?v=1785188445"},{"product_id":"sierra-18-2158-shift-cable-assembly-63-in-mercruiser-1-sterndrives-s-n-1562900-6225576-forward-bell-housing-install-replaces-19543a2","title":"Sierra 18-2158 Shift Cable Assembly, Aft Bell Housing Installation, 63 Inch Conduit, White","description":"\u003cp\u003eThe Sierra 18-2158 is a shift cable assembly built for aft installation into the bell housing. It uses core wire with armored strand construction, which means it does not require a separate support tube for proper operation. The assembly comes with a 63 inch conduit and includes a hardware package, so the mounting hardware needed for installation is provided along with the cable itself.\u003c\/p\u003e\u003cp\u003eThis cable is designed for boat drive applications where the shift mechanism mounts from the aft side of the bell housing. Because it uses armored strand core wire rather than the older stranded core wire with a soldered tip, it does not need a support tube during installation, simplifying the setup compared to shift cables that require one. The assembly is finished in white and is built to Sierra's standards for withstanding the marine environment, including exposure to moisture, vibration, and temperature swings that shift cables experience in regular use.\u003c\/p\u003e\u003cp\u003eThe 18-2158 is intended as a direct, drop-in style replacement for the aft-installation shift cable it corresponds to, giving boat owners and marine technicians a straightforward way to restore proper shift cable function without sourcing a support tube 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 18-2158\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Aft installation into bell housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Wire Construction:\u003c\/strong\u003e Armored strand construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport Tube Required:\u003c\/strong\u003e No (not needed with armored strand core wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Length:\u003c\/strong\u003e 63 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Hardware package\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 1.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311627\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2158 shift cable assembly used for?\u003c\/strong\u003e It is a shift cable assembly designed for aft installation into the bell housing, used to connect the shift control to the drive so the operator can shift between gears.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2158 require a support tube?\u003c\/strong\u003e No. The Sierra 18-2158 uses core wire with armored strand construction, which does not require a separate support tube for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the conduit on the 18-2158?\u003c\/strong\u003e The conduit on the Sierra 18-2158 shift cable assembly is 63 inches long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2158 come with mounting hardware?\u003c\/strong\u003e Yes, a hardware package is included with the Sierra 18-2158 shift cable assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2158 for forward or aft installation?\u003c\/strong\u003e The Sierra 18-2158 is built for aft installation into the bell housing, not forward installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2158 shift cable?\u003c\/strong\u003e The Sierra 18-2158 shift cable assembly is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2158 weigh?\u003c\/strong\u003e The Sierra 18-2158 shift cable assembly weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-2158 and a shift cable that uses a support tube?\u003c\/strong\u003e The 18-2158 uses armored strand core wire and does not need a support tube, while shift cables built with old style stranded core wire and a soldered tip are designed to be used with a separate support tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2158 a genuine Sierra part or aftermarket equivalent?\u003c\/strong\u003e The 18-2158 is manufactured by Sierra, a supplier of marine parts engineered to meet or exceed the original equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-2158 shift cable assembly?\u003c\/strong\u003e The Sierra 18-2158 includes the shift cable assembly with its 63 inch conduit and a hardware package for installation.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988093087963,"sku":"SIE-18-2158","price":93.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-2158_lg__63887.1558123358.500.750.jpg?v=1785188445"},{"product_id":"sierra-18-2162-shift-slide-screw-for-mercruiser-sterndrive-shift-cable-replaces-33981t-8507522","title":"Sierra 18-2162 Shift Slide and Screw, White - Replaces Mercruiser 33981, 8507522","description":"\u003cp\u003eThe Sierra 18-2162 Shift Slide and Screw is a precision-built replacement component for MerCruiser stern drive shift mechanisms. Finished in white with a machined exterior, this small but critical part is engineered to meet or exceed original equipment quality, ensuring smooth and reliable shift engagement. It is designed as a direct interchange for a wide range of Mallory and Mercruiser OEM part numbers, making it easy to source a correct replacement when the original slide and screw show wear or damage. The compact dimensions and machined construction allow it to fit into the shift mechanism assembly exactly as the original part did, restoring proper shift feel and function without requiring modification to surrounding components. As with all Sierra parts, this shift slide and screw is manufactured to consistent quality standards so boat owners and marine technicians can install it with confidence that fit and performance will match or exceed the factory original.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2162\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\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\u003eWeight:\u003c\/strong\u003e 0.14 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257729\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mallory 9-72151; Mercruiser 8507522, 8507521, 33981T1, 33981T, 33981\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFit specific; verify against the OEM part numbers listed below to ensure correct fit for your MerCruiser shift mechanism.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory 9-72151\u003c\/li\u003e\n\u003cli\u003eMercruiser 8507522\u003c\/li\u003e\n\u003cli\u003eMercruiser 8507521\u003c\/li\u003e\n\u003cli\u003eMercruiser 33981T1\u003c\/li\u003e\n\u003cli\u003eMercruiser 33981T\u003c\/li\u003e\n\u003cli\u003eMercruiser 33981\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2162 Shift Slide and Screw used for?\u003c\/strong\u003e The Sierra 18-2162 is a shift slide and screw component used within a MerCruiser stern drive shift mechanism to help transfer shift lever movement into gear engagement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2162 replace Mercruiser part number 33981?\u003c\/strong\u003e Yes, the Sierra 18-2162 Shift Slide and Screw is designed to interchange with Mercruiser 33981, along with 33981T, 33981T1, 8507522, and 8507521.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2162 compatible with Mallory shift components?\u003c\/strong\u003e It is designed as a direct interchange for Mallory part number 9-72151, in addition to several Mercruiser OEM numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-2162 shift slide and screw?\u003c\/strong\u003e It is finished in white with a machined exterior surface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2162 weigh?\u003c\/strong\u003e The Sierra 18-2162 Shift Slide and Screw weighs 0.14 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this part?\u003c\/strong\u003e The Sierra 18-2162 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-2162 is a genuine Sierra-manufactured part, built to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2162 fit any MerCruiser shift mechanism?\u003c\/strong\u003e Fit is part-number specific, so buyers should confirm their existing Mallory or Mercruiser part number matches one of the OEM cross-references for the 18-2162 before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2162?\u003c\/strong\u003e The 18-2162 ships as the single shift slide and screw component, ready to install into the shift mechanism assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2162 still in production?\u003c\/strong\u003e Yes, the 18-2162 Shift Slide and Screw is not discontinued and remains available as a current Sierra part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-2162 different from the original Mercruiser slide and screw?\u003c\/strong\u003e The Sierra 18-2162 is manufactured to the same fit and function as the original Mercruiser 33981\/8507522 series parts, so it installs as a drop-in equivalent.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105015515,"sku":"SIE-18-2162","price":16.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2162.2__51517.1729909513.500.750.jpg?v=1785187970"},{"product_id":"sierra-18-21751-engine-coupler-for-volvo-penta-omc-2-5l-8-2l-replaces-3853962","title":"Sierra Engine Coupler 18-21751, Replaces 3853962-3, Fits 2.5L, 3.0L, 4.3L, 5.0L, 5.7L, 7.4L, 8.2L Engines","description":"\u003cp\u003eThe Sierra 18-21751 Engine Coupler connects the engine flywheel to the drive unit on stern drive powered boats, transferring rotational power from the engine to the outdrive while allowing for the flex needed to accommodate engine and drive alignment. It is built from metal with a machined finish for durability under continuous torque loading, and is finished in white. This coupler is a direct replacement for OEM number 3853962-3, making it a straightforward swap when the original coupler wears out, cracks, or fails to properly transmit power between the engine and drive. It fits a range of stern drive engine displacements including 2.5L (1986), 3.0L (1986-90), 4.3L, 5.0L, 5.7L (1986), 7.4L (1990-98), and 8.2L (1992-93, 1998), with the 4.3L application limited to KW and KWB suffix engines only. Replacing a worn engine coupler is a common maintenance task when a boat develops vibration, clunking on shift, or difficulty engaging gear, since a deteriorated coupler can no longer properly transfer engine power to the outdrive. Each unit ships as a single piece.\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 18-21751\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/8 Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.45 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\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\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2.5L (1986)\u003c\/li\u003e\n\u003cli\u003e3.0L (1986-90)\u003c\/li\u003e\n\u003cli\u003e4.3L (KW and KWB suffix only)\u003c\/li\u003e\n\u003cli\u003e5.0L\u003c\/li\u003e\n\u003cli\u003e5.7L (1986)\u003c\/li\u003e\n\u003cli\u003e7.4L (1990-98)\u003c\/li\u003e\n\u003cli\u003e8.2L (1992-93, 1998)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3853962-3\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-21751 engine coupler do?\u003c\/strong\u003e The Sierra 18-21751 engine coupler connects the engine flywheel to the stern drive unit, transmitting engine power to the outdrive while flexing slightly to accommodate alignment between the two.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-21751 a direct replacement for OEM part 3853962-3?\u003c\/strong\u003e Yes, Sierra 18-21751 replaces OEM number 3853962-3 and installs as a direct equivalent for that application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the 18-21751 coupler fit?\u003c\/strong\u003e Coverage includes 2.5L (1986), 3.0L (1986-90), 4.3L (KW and KWB suffix engines only), 5.0L, 5.7L (1986), 7.4L (1990-98), and 8.2L (1992-93, 1998) stern drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 4.3L application fit all 4.3L engines?\u003c\/strong\u003e No, the 4.3L fitment for the 18-21751 coupler is limited specifically to engines with the KW or KWB suffix, not all 4.3L blocks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-21751 engine coupler made from?\u003c\/strong\u003e It is made from metal with a machined finish, providing the rigidity needed to handle continuous torque transfer between engine and drive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-21751 engine coupler weigh?\u003c\/strong\u003e The Sierra 18-21751 engine coupler weighs 6.45 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many couplers come in a package?\u003c\/strong\u003e The Sierra 18-21751 ships as a single piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-21751 coupler?\u003c\/strong\u003e It has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the signs that an engine coupler needs to be replaced?\u003c\/strong\u003e Vibration, a clunking noise when shifting into gear, or reduced power transfer to the drive are common symptoms of a worn coupler, and the 18-21751 addresses these on applicable engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the 18-21751 engine coupler manufactured?\u003c\/strong\u003e The country of origin for the Sierra 18-21751 engine coupler is Taiwan.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-21751 an OEM part or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket part manufactured to replace OEM number 3853962-3 for the listed engine applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105048283,"sku":"SIE-18-21751","price":257.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21751__34662.1722497925.500.750.jpg?v=1785189019"},{"product_id":"shift-slide-screw-for-mercruiser-i-o-drives-replaces-oem-10-31700-package-of-5-sierra-18-2163","title":"Sierra Shift Slide Screw 18-2163, Mercruiser I\/O Drive System, for Extreme Cables Only","description":"\u003cp\u003eThe Sierra Shift Slide Screw, part number 18-2163, is a small precision fastener used in the shift mechanism of Mercruiser I\/O (inboard\/outboard) drive systems. It is designated for use with Extreme Cables only, making it a specific replacement component rather than a universal fit for every shift cable setup. This screw plays a role in the shift slide assembly, where correct fit and secure engagement are essential for reliable gear selection and smooth shift operation. Given its small size and precise dimensions of 0.39 x 0.39 x 0.39 inches, it is manufactured to close tolerances so it seats properly within the shift slide hardware it is designed for. At 0.04 pounds, it is a lightweight hardware item intended to be installed as part of a shift cable or shift slide service, repair, or rebuild rather than sold as a standalone visible component. Because shift linkage hardware directly affects whether a drive shifts cleanly between gears, using the correct screw for an Extreme Cables application helps avoid improper engagement or premature wear at the shift slide interface. This part is identified under the Sierra brand and is cross-referenced to equivalent industry part numbers, helping buyers confirm they are ordering the correct hardware for their Mercruiser I\/O shift system 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 18-2163\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Shift Slide Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e For Extreme Cables Only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive System:\u003c\/strong\u003e I\/O - Mercruiser Drive System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257736\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLM Cross Reference:\u003c\/strong\u003e 21090\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory Cross Reference:\u003c\/strong\u003e 9-72152\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser I\/O Drive System, for Extreme Cables Only\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10-31700\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2163 Shift Slide Screw used for?\u003c\/strong\u003e The Sierra 18-2163 is a shift slide screw used in the shift mechanism of Mercruiser I\/O drive systems, specifically for applications using Extreme Cables.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2163 shift slide screw fit any Mercruiser shift cable setup?\u003c\/strong\u003e No, the 18-2163 is designated for Extreme Cables only, so it should not be assumed to fit standard or other cable types used on Mercruiser I\/O drive systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-2163 shift slide screw?\u003c\/strong\u003e The 18-2163 measures 0.39 x 0.39 x 0.39 inches, reflecting its small size as a precision shift mechanism fastener.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2163 shift slide screw weigh?\u003c\/strong\u003e This screw weighs 0.04 pounds, consistent with its role as a small hardware component rather than a full assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2163 equivalent to an OEM part number?\u003c\/strong\u003e Yes, the 18-2163 cross-references to OEM part number 10-31700 for buyers matching against original equipment numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there other brand cross-reference numbers for the Sierra 18-2163?\u003c\/strong\u003e Yes, the 18-2163 cross-references to GLM number 21090 and Mallory number 9-72152.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra Shift Slide Screw 18-2163 genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-2163 is a Sierra-branded part manufactured as a replacement component for Mercruiser I\/O drive system shift hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drive system does the 18-2163 shift slide screw belong to?\u003c\/strong\u003e It is used within the I\/O (inboard\/outboard) Mercruiser drive system, specifically within the shift slide hardware for Extreme Cables.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2163 shift slide screw made from?\u003c\/strong\u003e The sources for the 18-2163 do not specify a material for this screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the 18-2163 versus a different shift slide screw?\u003c\/strong\u003e The 18-2163 is specifically for Extreme Cables applications on Mercruiser I\/O drive systems, so confirming your cable type before ordering ensures the correct fit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105081051,"sku":"SIE-18-2163","price":1.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2163_lg__66469.1558123720.500.750.jpg?v=1785188291"},{"product_id":"sierra-18-2161-marine-shift-arm-for-mercruiser-stern-drive-replaces-45518a3","title":"Sierra 18-2161 Marine Shift Arm for Mercruiser Stern Drive, Replaces Mercury Marine 45518A2","description":"\u003cp\u003eThe Sierra 18-2161 is a stainless steel shift arm built for Mercruiser stern drive applications. It links the shift cable to the drive's internal shift mechanism, transferring the boat operator's shift lever input into the gear-selection linkage of the stern drive. Built to meet or exceed original equipment quality standards, the 18-2161 is manufactured as a direct-fit replacement for worn, corroded, or broken shift arms that can cause sloppy, hard, or unreliable shifting between forward, neutral, and reverse.\u003c\/p\u003e\u003cp\u003eThe shift arm is constructed from stainless steel for corrosion resistance in the marine environment. It is offered as an equivalent to Mercury Marine part numbers 45518A2 and 45518A 3, and cross-references to Evinrude\/Johnson 318944. Because shift arm geometry varies between stern drive models, confirm the part number match against your Mercruiser stern drive before installing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2161\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Shift Arm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit (verify part number before ordering)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311658\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser stern drive\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 45518A2\u003c\/li\u003e\n\u003cli\u003eMercury Marine 45518A 3\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 318944\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2161 shift arm do?\u003c\/strong\u003e It connects the shift cable to the internal shift mechanism on a Mercruiser stern drive, transferring the shift lever's input into the drive's gear-selection linkage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2161 fit any Mercruiser stern drive?\u003c\/strong\u003e The Sierra 18-2161 is listed as a universal fit for Mercruiser stern drive applications, but shift arm geometry can vary by model, so check the part number against your stern drive before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this shift arm cross-reference?\u003c\/strong\u003e The 18-2161 is equivalent to Mercury Marine 45518A2 and 45518A 3, and also cross-references to Evinrude\/Johnson 318944.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2161 a genuine Mercury Marine part?\u003c\/strong\u003e No, the 18-2161 is a Sierra-brand part manufactured to meet or exceed original equipment quality, offered as an equivalent to the Mercury Marine 45518A2 and 45518A 3 shift arms rather than a Mercury Marine branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2161 shift arm made from?\u003c\/strong\u003e Stainless steel, chosen for corrosion resistance in marine stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2161 shift arm weigh?\u003c\/strong\u003e 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-2161?\u003c\/strong\u003e One Sierra 18-2161 stainless steel shift arm for Mercruiser stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2161 work if my boat has an Evinrude or Johnson outboard instead of a Mercruiser stern drive?\u003c\/strong\u003e The Sierra 18-2161 cross-references to Evinrude\/Johnson part number 318944, so it can serve as an equivalent on applications that originally used that part number in addition to Mercruiser stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2161 different from a used or salvage shift arm?\u003c\/strong\u003e The Sierra 18-2161 is a new part manufactured to meet or exceed original equipment quality standards, avoiding the wear and corrosion risk of a used shift arm pulled from another drive.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105146587,"sku":"SIE-18-2161","price":33.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2161_lg__88249.1558123540.500.750.jpg?v=1785188337"},{"product_id":"sierra-18-2166-propeller-shaft-for-mercruiser-alpha-one-sterndrive-replaces-oem-44-66060","title":"Sierra Prop Shaft 18-2166, Replaces 44-66060 \/ 44-824110, Fits MR\/ALPHA \u0026 #1 Units","description":"\u003cp\u003eThe Sierra Prop Shaft 18-2166 is a machined replacement propeller shaft for MerCruiser sterndrive lower units, covering All #1 and MR\/ALPHA units at serial number 2791957 and above, as well as 165 (6 cylinder) units at serial number 2763442 and above. The prop shaft transmits rotational power from the lower unit gearcase out to the propeller, and a worn, corroded, or bent shaft is a common cause of vibration, reduced thrust, or seal leakage at the propeller end of the drive. Machined to precise tolerances, the 18-2166 is built as a direct-fit alternative to the original equipment shaft, using the same mounting interface so no modification to the lower unit housing is needed during installation. This shaft carries Sierra part number 18-2166 and cross-references to multiple Mercury Marine and MerCruiser OEM numbers, so it can be matched to your old shaft or parts diagram regardless of which OEM number is stamped on it. Because a prop shaft carries continuous rotational load and sits at a water-exposed seal interface, replacing a worn or damaged shaft promptly helps prevent secondary wear to the gearcase bearings and seals. Before ordering, confirm your unit's serial number falls within the listed ranges to ensure correct fitment.\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 18-2166\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.58 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 44-66060, 44-660603, 44-824110, 44-660602, 44-55857\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll #1 and MR\/ALPHA units, serial number 2791957 and above\u003c\/li\u003e\n\u003cli\u003e165 (6 cylinder) units, serial number 2763442 and above\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e44-66060\u003c\/li\u003e\n\u003cli\u003e44-660603\u003c\/li\u003e\n\u003cli\u003e44-824110\u003c\/li\u003e\n\u003cli\u003e44-660602\u003c\/li\u003e\n\u003cli\u003e44-55857\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2166 prop shaft fit?\u003c\/strong\u003e The 18-2166 fits All #1 and MR\/ALPHA units at serial number 2791957 and above, and also fits 165 (6 cylinder) units at serial number 2763442 and above. Check your lower unit's serial number against these ranges before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does the Sierra 18-2166 replace?\u003c\/strong\u003e It replaces OEM numbers 44-66060, 44-660603, 44-824110, 44-660602, and 44-55857, so it is a direct match for any of these part numbers found on the original shaft or in a parts diagram.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this prop shaft weigh?\u003c\/strong\u003e The Sierra Prop Shaft 18-2166 weighs 4.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2166 an OEM or aftermarket part?\u003c\/strong\u003e The 18-2166 is a Sierra-brand replacement part, sold under Sierra's own part number rather than the original Mercury Marine or MerCruiser part number, but it is built to cross-reference directly with those OEM numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2166 fit a 165 (6 cylinder) unit?\u003c\/strong\u003e Yes, the 18-2166 prop shaft fits 165 (6 cylinder) units at serial number 2763442 and above.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material or finish does the 18-2166 shaft have?\u003c\/strong\u003e The Sierra 18-2166 prop shaft has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes installing the 18-2166 require modifying the lower unit?\u003c\/strong\u003e No modification to the lower unit housing is needed; the 18-2166 uses the same mounting interface as the original shaft it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a worn or bad prop shaft?\u003c\/strong\u003e Vibration, reduced thrust, and seal leakage at the propeller end of the drive are common signs that a prop shaft such as the 18-2166 needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the part number for this prop shaft?\u003c\/strong\u003e The Sierra part number for this prop shaft is 18-2166.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2166 prop shaft?\u003c\/strong\u003e Listed product dimensions for the 18-2166 are 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2166 fit MR\/ALPHA units?\u003c\/strong\u003e Yes, the 18-2166 fits All #1 and MR\/ALPHA units at serial number 2791957 and above.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105179355,"sku":"SIE-18-2166","price":447.09,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2166_lg__41303.1558121034.500.750.jpg?v=1785188561"},{"product_id":"sierra-18-2169-shift-arm-for-mercruiser-sterndrive-replaces-mercury-45589a3-45589a1","title":"Sierra 18-2169 Shift Arm, White, OEM 45589A3 Replacement, Universal Fit","description":"\u003cp\u003eThe Sierra 18-2169 Shift Arm is a white, stainless steel replacement shift arm designed for marine personal-craft shift cable systems. It is built as an OEM-equivalent part, engineered to meet or exceed the original equipment part it replaces so it installs and functions the same as the factory arm. The shift arm connects into the shift cable linkage and includes a pull handle for smooth, positive shift engagement. Its stainless steel construction resists corrosion in the marine environment, and the white finish matches common factory shift assembly colors. This is a universal fit part, making it a straightforward replacement across compatible shift cable setups rather than being limited to one specific model or year. The complete package includes one Sierra 18-2169 Shift Arm, ready to install in place of a worn, cracked, or broken original arm. Boat owners and marine techs use this part to restore reliable shifting when the factory shift arm has failed or become loose, without needing to replace the entire shift cable assembly. Sierra International is a recognized marine parts manufacturer, and this shift arm is manufactured to be a drop-in equivalent for Mercury Marine part number 45589A3.\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 18-2169\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Type:\u003c\/strong\u003e Pull Handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.22 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 19.2 H x 1.7 L x 16.9 W (centimetres)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311733\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 45589A3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal fit for compatible marine personal-craft shift cable systems.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 45589A3\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2169 Shift Arm replace?\u003c\/strong\u003e The Sierra 18-2169 Shift Arm is an OEM-equivalent replacement for Mercury Marine part number 45589A3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this shift arm fit my boat's shift cable?\u003c\/strong\u003e The Sierra 18-2169 is a universal fit shift arm, meaning it is designed to work across compatible marine shift cable systems rather than one single model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2169 Shift Arm made from?\u003c\/strong\u003e It is made from stainless steel, which resists corrosion in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2169 Shift Arm?\u003c\/strong\u003e This shift arm has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2169 Shift Arm weigh?\u003c\/strong\u003e The Sierra 18-2169 Shift Arm weighs 0.22 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the Sierra 18-2169?\u003c\/strong\u003e The packaged Sierra 18-2169 Shift Arm measures 19.2 H x 1.7 L x 16.9 W in centimetres.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-2169?\u003c\/strong\u003e One Sierra 18-2169 Shift Arm is included in the package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2169 genuine Mercury Marine or aftermarket?\u003c\/strong\u003e The 18-2169 is a Sierra-manufactured aftermarket shift arm built to meet or exceed the original Mercury Marine 45589A3 part it replaces, not a genuine Mercury Marine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2169 have a handle type?\u003c\/strong\u003e Yes, the Sierra 18-2169 Shift Arm uses a pull handle design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my shift arm needs replacing?\u003c\/strong\u003e A worn, cracked, loose, or broken shift arm that causes inconsistent or failed shift engagement is a sign the arm, such as the Sierra 18-2169, needs replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105244891,"sku":"SIE-18-2169","price":86.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2169_lg__97543.1558121145.500.750.jpg?v=1785189003"},{"product_id":"sierra-18-2174-u-joint-cross-bearing-replaces-mercury-75832a2-mercruiser-sterndrive-universal-joint","title":"Sierra 18-2174 Heavy Duty U-Joint, Replaces Mercury Marine 75832A3, Fits Alpha One SN B418819 \u0026 Above, Alpha One SS, Bravo","description":"\u003cp\u003eThe Sierra 18-2174 is a heavy duty U-joint built as a direct replacement for the U-joint used on Mercruiser Alpha One drive units (S\/N B418819 and above), Alpha One SS, and Bravo drives. It is constructed from alloy steel to handle the torsional loads transmitted through the drive shaft between the engine and outdrive, and it includes both a straight grease fitting and a 90 degree grease fitting so it can be serviced in tight installation clearances where a straight fitting cannot be accessed.\u003c\/p\u003e\u003cp\u003eThis U-joint is designed as a like-for-like replacement for the original equipment part, matching the fit and function of the OEM component it replaces. It ships as a single U-joint unit finished in brown\/black alloy steel, ready to install in place of a worn or failing joint during routine outdrive maintenance or driveline 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 18-2174\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e U-Joint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 3.5 x 3.5 x 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.21 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrease Fittings Included:\u003c\/strong\u003e Straight and 90 degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311764\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAlpha I Units, S\/N B418819 and above\u003c\/li\u003e\n\u003cli\u003eAlpha I SS\u003c\/li\u003e\n\u003cli\u003eBravo\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e36312\u003c\/li\u003e\n\u003cli\u003e41431\u003c\/li\u003e\n\u003cli\u003e58749\u003c\/li\u003e\n\u003cli\u003e75832\u003c\/li\u003e\n\u003cli\u003e75832T\u003c\/li\u003e\n\u003cli\u003e75832A1\u003c\/li\u003e\n\u003cli\u003e75832A2\u003c\/li\u003e\n\u003cli\u003e75832A3\u003c\/li\u003e\n\u003cli\u003e758321\u003c\/li\u003e\n\u003cli\u003e75832T1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2174 U-joint fit?\u003c\/strong\u003e This U-joint fits Alpha I drive units with serial number B418819 and above, as well as Alpha I SS and Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2174 a direct replacement for the original Mercury Marine U-joint?\u003c\/strong\u003e Yes, the Sierra 18-2174 is built as a direct replacement for OEM U-joints including Mercury Marine part numbers 75832, 75832T, 75832A1, 75832A2, 75832A3, 758321, and 75832T1, along with 36312, 41431, and 58749.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-2174 cross-reference to?\u003c\/strong\u003e The 18-2174 replaces OEM numbers 36312, 41431, 58749, 75832, 75832T, 75832A1, 75832A2, 75832A3, 758321, and 75832T1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the U-joint weigh?\u003c\/strong\u003e The Sierra 18-2174 U-joint weighs 1.21 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2174 U-joint made of?\u003c\/strong\u003e It is made of alloy steel, providing the strength needed to handle drive shaft torsional loads between the engine and outdrive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2174 come with grease fittings?\u003c\/strong\u003e Yes, the 18-2174 U-joint includes both a straight grease fitting and a 90 degree grease fitting, allowing servicing in installations with limited clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2174 U-joint?\u003c\/strong\u003e The U-joint measures 3.5 x 3.5 x 1.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this U-joint work on an older Alpha I unit below serial number B418819?\u003c\/strong\u003e The 18-2174 is specified to fit Alpha I units at serial number B418819 and above, along with Alpha I SS and Bravo; it is not specified for units below that serial number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2174?\u003c\/strong\u003e Each order includes one Sierra 18-2174 heavy duty U-joint with both straight and 90 degree grease fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color\/finish is the 18-2174 U-joint?\u003c\/strong\u003e The 18-2174 U-joint has a brown alloy steel finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2174 fit Bravo drives?\u003c\/strong\u003e Yes, in addition to Alpha I (S\/N B418819 \u0026amp; above) and Alpha I SS, the Sierra 18-2174 also fits Bravo drives.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105277659,"sku":"SIE-18-2174","price":54.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2174_lg__64656.1558121620.500.750.jpg?v=1785188089"},{"product_id":"sierra-18-2170-shift-arm-screw-for-mercruiser-stern-drives-replaces-mercury-10-45590-10-8m0084649","title":"Sierra 18-2170 Shift Arm Screw, Replaces Mercury Marine 10-45590, Mercruiser Stern Drives","description":"\u003cp\u003eThe Sierra 18-2170 Shift Arm Screw is a stainless steel fastener used on Mercruiser stern drive shift arm assemblies. It is sold individually (one screw per package) and is manufactured to meet or exceed the original equipment part it replaces. The screw uses a 1\/4\"-20 UNC thread with a Grade 2 rating and a round head style, giving it the strength and corrosion resistance needed for the marine shift linkage environment. Its stainless steel construction and stainless exterior finish resist saltwater and freshwater corrosion, helping the shift arm connection hold up over repeated use.\u003c\/p\u003e\u003cp\u003eThis part is a direct interchange for the OEM Mercury Marine shift arm screw used on Mercruiser stern drive units, and is commonly used when servicing or rebuilding shift arm linkage where the original fastener has been lost, damaged, or corroded. Because it is a small precision fastener, it is best ordered along with any other shift linkage hardware being serviced at the same time so the assembly goes back together with matched, correctly rated components.\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 18-2170\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/4\"-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade:\u003c\/strong\u003e Grade 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Screw\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 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 screw\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercruiser stern drives.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 21750\u003c\/li\u003e\n\u003cli\u003eMercury Marine 10-45590\u003c\/li\u003e\n\u003cli\u003e10-8M0084649\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2170 Shift Arm Screw used for?\u003c\/strong\u003e It is a shift arm screw used on Mercruiser stern drive shift linkage, and it comes as a single screw per package rather than a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2170 fit all Mercruiser stern drives?\u003c\/strong\u003e The Sierra 18-2170 is designated for use on Mercruiser stern drives; a specific engine or drive model is not listed, so confirm the shift arm screw thread and head match your existing hardware before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2170 replace?\u003c\/strong\u003e The Sierra 18-2170 interchanges with GLM 21750 and Mercury Marine 10-45590 and 10-8M0084649, so any of those OEM numbers can be used to cross-reference this screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2170 the same as the Mercury Marine 10-45590 screw?\u003c\/strong\u003e Yes, the Sierra 18-2170 is a direct interchange for Mercury Marine part 10-45590 and is built to meet or exceed the original equipment specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2170 shift arm screw made from?\u003c\/strong\u003e It is made from stainless steel with a stainless steel exterior finish, giving it corrosion resistance in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the Sierra 18-2170 use?\u003c\/strong\u003e The thread size is 1\/4\"-20 UNC (Unified National Coarse) with a 3A thread class and a Grade 2 rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many screws come in a package of the Sierra 18-2170?\u003c\/strong\u003e Each package contains one Sierra 18-2170 shift arm screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-2170 shift arm screw?\u003c\/strong\u003e The screw measures 0.39 x 0.39 x 0.39 inches and weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat head style does the Sierra 18-2170 have?\u003c\/strong\u003e It has a round head style, consistent with the original Mercury Marine shift arm screw it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2170 genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-2170 is manufactured by Sierra as a replacement part built to meet or exceed the original equipment shift arm screw it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105310427,"sku":"SIE-18-2170","price":2.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2170_lg__53109.1558121211.500.750.jpg?v=1785188283"},{"product_id":"sierra-18-2190e-lower-shift-cable-63in-for-mercruiser-alpha-one-gen-ii-stern-drive-1991-1997","title":"Sierra 18-2190E Lower Shift Cable, 63 Inch, Mercruiser Alpha One (Gen II) 1991-97","description":"\u003cp\u003eThe Sierra 18-2190E is a 63 inch lower shift cable engineered for AFT installation into the bell housing on Mercruiser Alpha One (Gen II) stern drives (1991-97), starting at S\/N 6225577 and up. It is built for applications that use a core wire with armored strand construction and no support tube, matching the original factory routing and actuation feel. The cable ships as a 63 inch conduit assembly complete with a hardware package, so the mounting fittings and attaching hardware needed for a direct installation are included.\u003c\/p\u003e\u003cp\u003eThis shift cable is the OEM-equivalent replacement for a wide range of Mercruiser part numbers, making it a straightforward swap when the original cable has stretched, seized, or developed excess play that leads to sloppy or unreliable shifting. Note that completing installation requires the Sierra 18-9806E Xtreme Shift Cable Tool, which is used to properly set cable length and adjustment during the swap.\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 18-2190E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lower Shift Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 63 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Wire Construction:\u003c\/strong\u003e Armored strand (no support tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e AFT installation into bell housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Hardware:\u003c\/strong\u003e Conduit with hardware package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial Number Applicability:\u003c\/strong\u003e S\/N 6225577 \u0026amp; up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Tool:\u003c\/strong\u003e 18-9806E Xtreme Shift Cable Tool (for installation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282167349\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser Alpha One (Gen II), 1991-97\u003c\/li\u003e\n\u003cli\u003eLower shift cable, AFT installation into bell housing\u003c\/li\u003e\n\u003cli\u003eS\/N 6225577 \u0026amp; up\u003c\/li\u003e\n\u003cli\u003eFor core wire with armored strand construction (No Support Tube)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e19543A4\u003c\/li\u003e\n\u003cli\u003e19543A10\u003c\/li\u003e\n\u003cli\u003e19543A8\u003c\/li\u003e\n\u003cli\u003e19543A2\u003c\/li\u003e\n\u003cli\u003e41951A1\u003c\/li\u003e\n\u003cli\u003e66065A1\u003c\/li\u003e\n\u003cli\u003e66069A2\u003c\/li\u003e\n\u003cli\u003e73679A2\u003c\/li\u003e\n\u003cli\u003e865436A02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2190E fit?\u003c\/strong\u003e The 18-2190E is a lower shift cable for Mercruiser Alpha One (Gen II) stern drives (1991-97), applicable to units with S\/N 6225577 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2190E a direct OEM replacement?\u003c\/strong\u003e Yes, the Sierra 18-2190E cross-references to Mercruiser OEM numbers 19543A4, 19543A10, 19543A8, 19543A2, 41951A1, 66065A1, 66069A2, 73679A2, and 865436A02, so it installs as a direct replacement for any of those parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is this shift cable?\u003c\/strong\u003e The 18-2190E measures 63 inches of conduit, matching the original factory cable length for Alpha One (Gen II) applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box?\u003c\/strong\u003e The 18-2190E ships as a complete 63 inch conduit assembly with a hardware package for mounting and attachment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any special tools to install the 18-2190E?\u003c\/strong\u003e Yes, installing the Sierra 18-2190E requires the 18-9806E Xtreme Shift Cable Tool to properly set the cable during the swap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of core wire does the 18-2190E use?\u003c\/strong\u003e This cable is built for applications using a core wire with armored strand construction and no support tube, matching the original Alpha One (Gen II) cable design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does the 18-2190E cable install?\u003c\/strong\u003e The 18-2190E is designed for AFT installation into the bell housing on Mercruiser Alpha One (Gen II) drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2190E made from?\u003c\/strong\u003e The Sierra 18-2190E shift cable is constructed of stainless steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2190E weigh?\u003c\/strong\u003e The Sierra 18-2190E weighs 1.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a serial number restriction on the 18-2190E?\u003c\/strong\u003e Yes, the 18-2190E applies to Alpha One (Gen II) units with S\/N 6225577 and up; earlier serial number ranges use a different shift cable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2190E genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-2190E is a genuine Sierra part, manufactured to meet or exceed the original equipment specification for the Mercruiser cables it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-2190E cable?\u003c\/strong\u003e The Sierra 18-2190E has a white finish.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105343195,"sku":"SIE-18-2190E","price":154.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2190e_lg__05683.1558122786.500.750.jpg?v=1785188599"},{"product_id":"sierra-18-21752-1-marine-engine-coupler-replaces-volvo-penta-omc-3858437-984290-986120-fits-4-3l-5-0l-5-7l-1986-1998","title":"Sierra 18-21752-1 Engine Coupler, White, Replaces 3858437, Fits 4.3L 5.0L 5.7L (1986-1998)","description":"\u003cp\u003eThe Sierra 18-21752-1 is a white marine engine coupler that connects the engine flywheel to the drive unit, transmitting engine power to the outdrive on inboard\/outdrive setups. It is built to meet or exceed the specification of the original equipment part it replaces, and Sierra manufactures it to the same fit, form, and function standard used by OEM engine manufacturers and boat builders. This coupler is a direct cross-reference replacement for four OEM part numbers, so it can be ordered under any of those numbers and installed as a like-for-like swap without modification.\u003c\/p\u003e\u003cp\u003eThe coupler is engineered for GM-based marine engines commonly found in stern drive applications, with confirmed fitment across 4.3L, 5.0L, and 5.7L engine platforms spanning the 1986 through 1998 model years, with specific coverage varying by engine size. Its metal, alloy steel construction is designed to withstand the vibration, torque, and harsh marine operating environment these drivetrain components see in regular service. Because it is a direct OEM cross-reference part rather than a universal fit, boat owners and marine technicians can use it to restore original power transmission between the engine and drive unit during a coupler replacement or drivetrain rebuild.\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 18-21752-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Engine Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal (alloy steel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.45 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 16.764 x 15.748 x 16.256 centimeters (L x H x W)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282226855\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference Numbers:\u003c\/strong\u003e 3858437, 984290, 986120, 3853917\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4.3L engines (1986-1998)\u003c\/li\u003e\n\u003cli\u003e5.0L engines (1986-1988, 1998)\u003c\/li\u003e\n\u003cli\u003e5.7L engines (1986-1992, 1994, 1996-1998)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e3858437\u003c\/li\u003e\n\u003cli\u003e984290\u003c\/li\u003e\n\u003cli\u003e986120\u003c\/li\u003e\n\u003cli\u003e3853917\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-21752-1 engine coupler fit?\u003c\/strong\u003e The Sierra 18-21752-1 fits 4.3L engines (1986-1998), 5.0L engines (1986-1988 and 1998), and 5.7L engines (1986-1992, 1994, and 1996-1998).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-21752-1 replace?\u003c\/strong\u003e It is a direct cross-reference for OEM numbers 3858437, 984290, 986120, and 3853917, so any of those part numbers can be used to identify the correct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this engine coupler weigh?\u003c\/strong\u003e The Sierra 18-21752-1 engine coupler weighs 6.45 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-21752-1 coupler?\u003c\/strong\u003e This coupler is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the coupler made from?\u003c\/strong\u003e It is made of metal, specifically alloy steel construction, built to hold up under marine drivetrain loads and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-21752-1 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-21752-1 is a genuine Sierra marine part manufactured to meet or exceed the specification of the original equipment coupler it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this coupler fit both 5.0L and 5.7L engines the same way?\u003c\/strong\u003e Yes, one 18-21752-1 coupler covers 4.3L (1986-1998), 5.0L (1986-1988, 1998), and 5.7L (1986-1992, 1994, 1996-1998) engines, since fitment is by engine platform rather than a separate part per engine size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part number 18-21752-1?\u003c\/strong\u003e Ordering Sierra 18-21752-1 includes one marine engine coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-21752-1 differ from the Sierra 18-21753 coupler?\u003c\/strong\u003e Yes, 18-21753 is a separate Sierra coupler part number with its own OEM cross-reference and its own fitment, so buyers should confirm which part number matches their engine before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the package size of the Sierra 18-21752-1?\u003c\/strong\u003e The Sierra 18-21752-1 ships in packaging measuring 16.764 x 15.748 x 16.256 centimeters (L x H x W).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a warranty on the Sierra 18-21752-1 engine coupler?\u003c\/strong\u003e The 18-21752-1 is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I cross-reference the 18-21752-1 using an old OMC or Volvo part number?\u003c\/strong\u003e Yes, if your old coupler is stamped 3858437, 984290, 986120, or 3853917, the Sierra 18-21752-1 is the correct direct replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105408731,"sku":"SIE-18-21752-1","price":277.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21752-1__48722.1722487780.500.750.jpg?v=1785188113"},{"product_id":"sierra-18-2190-shift-cable-for-mercruiser-alpha-one-gen-ii-mc-i-and-r-mr-sterndrives-replaces-mercury-19543a10","title":"Sierra 18-2190 Shift Cable, Replaces Mercury Marine 19543A10, for Mercruiser 1 Drives S\/N 6225577 \u0026 Up","description":"\u003cp\u003eThe Sierra 18-2190 is a shift cable built for Mercruiser 1 drives, S\/N 6225577 and up, designed for AFT installation into the bell housing. It is engineered for applications that use core wire with armored strand construction and does not require a separate support tube. The cable measures 63 inches of conduit and ships with a complete hardware package, so the components needed to mount and connect the cable at both ends are included.\u003c\/p\u003e\u003cp\u003eConstructed from aluminum for durability in a marine environment, the 18-2190 is a direct-fit replacement for the Mercury Marine shift cables it supersedes. It is intended to restore reliable shift engagement between the control station and the Mercruiser 1 drive, replacing a worn, stretched, or seized original cable so shift response stays crisp and consistent.\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 18-2190\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Shift Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Length:\u003c\/strong\u003e 63 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.41 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311917\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e AFT installation into bell housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Wire Construction:\u003c\/strong\u003e Armored strand (no support tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser 1 drives, S\/N 6225577 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Hardware:\u003c\/strong\u003e Hardware package included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 17.2 inches L x 17.2 inches W x 2.4 inches H\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 1 drives, S\/N 6225577 \u0026amp; Up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e19543A2\u003c\/li\u003e\n\u003cli\u003e19543A4\u003c\/li\u003e\n\u003cli\u003e19543A8\u003c\/li\u003e\n\u003cli\u003e19543A10\u003c\/li\u003e\n\u003cli\u003e41951A1\u003c\/li\u003e\n\u003cli\u003e66065A1\u003c\/li\u003e\n\u003cli\u003e66069A2\u003c\/li\u003e\n\u003cli\u003e73679A2\u003c\/li\u003e\n\u003cli\u003e865436A02\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2190 shift cable fit?\u003c\/strong\u003e It fits Mercruiser 1 drives with serial number 6225577 and up, and is designed for AFT installation into the bell housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2190 a direct OEM replacement?\u003c\/strong\u003e Yes, the 18-2190 replaces Mercury Marine shift cables 19543A2, 19543A4, 19543A8, 19543A10, 41951A1, 66065A1, 66069A2, 73679A2, and 865436A02.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the conduit on this shift cable?\u003c\/strong\u003e The Sierra 18-2190 has 63 inches of conduit and ships with a hardware package for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2190 shift cable made from?\u003c\/strong\u003e It is made from aluminum, chosen for durability in a marine drive environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2190 need a support tube?\u003c\/strong\u003e No. The 18-2190 is built for use with core wire that has armored strand construction, so no separate support tube is required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-2190?\u003c\/strong\u003e The 18-2190 includes the 63 inch conduit shift cable along with a hardware package for mounting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2190 shift cable weigh?\u003c\/strong\u003e The Sierra 18-2190 shift cable weighs 1.41 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-2190 and the 18-2158 shift cable?\u003c\/strong\u003e The 18-2190 is for Mercruiser 1 drives S\/N 6225577 and up with AFT installation and armored strand core wire needing no support tube, while the 18-2158 fits Mercruiser 1 drives S\/N 1562900-6225576 for forward installation, uses old style stranded core wire with a soldered tip, and requires a separate support tube (18-2160).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this cable installed at the front or rear of the bell housing?\u003c\/strong\u003e The Sierra 18-2190 is designed for AFT installation into the bell housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2190 work on an older Mercruiser 1 drive with a lower serial number?\u003c\/strong\u003e No, the 18-2190 is specified for S\/N 6225577 and up; earlier serial numbers use the 18-2158 shift cable instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2190 cross-reference to Mercury Marine part 19543A10?\u003c\/strong\u003e Yes, Mercury Marine 19543A10 is one of the numbers the Sierra 18-2190 replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2190 shift cable?\u003c\/strong\u003e The UPC for the Sierra 18-2190 shift cable is 030999311917.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105474267,"sku":"SIE-18-2190","price":75.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__87532.1753191258.500.750.jpg?v=1785188599"},{"product_id":"sierra-18-2171-engine-coupler-for-gm-replaces-mercruiser-76850a2-triangular-3-bolt-coupler","title":"Sierra 18-2171 Engine Coupler, Replaces 76850A2, for GM Engines with Triangular 3-Bolt Coupler except MR\/Alpha\/Bravo","description":"\u003cp\u003eThe Sierra 18-2171 Engine Coupler is a direct replacement engine coupler built for GM engines fitted with a triangular, 3-bolt coupler design, excluding MR\/Alpha\/Bravo drive configurations. It connects the engine flywheel to the transmission or outdrive, transferring rotational torque while accommodating minor misalignment between the engine and drive unit. Correct coupler fitment is critical: installing the wrong coupler pattern can prevent proper engagement with the drive and lead to premature wear or failure.\u003c\/p\u003e\u003cp\u003eThis coupler is manufactured from metal with a machined black finish, built to meet or exceed the quality of the original equipment part it replaces. It is a single-piece unit that cross-references directly to six OEM Mercury\/Mercruiser part numbers, making it straightforward to identify as the correct replacement when servicing engines that use the triangular 3-bolt coupler pattern. Sierra engineers its couplers to hold up under the demands of high-horsepower marine engines operating in harsh, corrosive marine environments.\u003c\/p\u003e\u003cp\u003eUse this coupler when servicing or replacing a worn, cracked, or damaged coupler on an eligible GM engine, or when rebuilding the engine-to-drive connection during an outdrive or transmission 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 18-2171\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 5.2 x 5.1 x 4.9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.63 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311757\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll GM engines except MR\/Alpha\/Bravo with a triangular, 3-bolt coupler\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32492A2\u003c\/li\u003e\n\u003cli\u003e32492A3\u003c\/li\u003e\n\u003cli\u003e32492A5\u003c\/li\u003e\n\u003cli\u003e38965A1\u003c\/li\u003e\n\u003cli\u003e38965A2\u003c\/li\u003e\n\u003cli\u003e76850A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2171 Engine Coupler fit?\u003c\/strong\u003e It fits all GM engines except MR\/Alpha\/Bravo configurations that use a triangular, 3-bolt coupler pattern. Check your existing coupler's bolt pattern before ordering to confirm compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-2171 replace?\u003c\/strong\u003e The Sierra 18-2171 replaces OEM numbers 32492A2, 32492A3, 32492A5, 38965A1, 38965A2, and 76850A2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this coupler work with an Alpha or Bravo outdrive?\u003c\/strong\u003e No, the 18-2171 is specifically excluded for MR, Alpha, and Bravo drive configurations; it is intended for GM engines using the triangular 3-bolt coupler pattern instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2171 coupler?\u003c\/strong\u003e The coupler measures 5.2 x 5.1 x 4.9 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2171 weigh?\u003c\/strong\u003e It weighs 3.63 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the engine coupler made from?\u003c\/strong\u003e The 18-2171 is made from metal with a machined black finish for durability in marine service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2171 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket coupler manufactured by Sierra to meet or exceed the specifications of the original equipment coupler it replaces, including 76850A2 and the other listed cross-references.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pieces come in the package?\u003c\/strong\u003e The 18-2171 ships as a single one-piece coupler unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 3-bolt coupler pattern different from other coupler types?\u003c\/strong\u003e The 18-2171 uses a triangular 3-bolt bolt pattern, which is a different mounting configuration than couplers used on MR\/Alpha\/Bravo drives, so the two are not interchangeable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2171?\u003c\/strong\u003e The UPC for the Sierra 18-2171 Engine Coupler is 030999311757.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace the engine coupler?\u003c\/strong\u003e The 18-2171 should be replaced if the existing coupler on a compatible GM engine is worn, cracked, or damaged, or during a transmission or outdrive service where the coupler is inspected.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105539803,"sku":"SIE-18-2171","price":248.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2171_lg__02766.1558121284.500.750.jpg?v=1785188134"},{"product_id":"sierra-18-2245-1-shift-cable-assembly-replaces-omc-987661-for-1988-1993-omc-cobra-except-king-without-cone-clutch","title":"Sierra Shift Cable Assembly 18-2245-1, Replaces OMC 987661, for 1988-1993 OMC Cobra (except King) without Cone Clutch","description":"\u003cp\u003eThe Sierra 18-2245-1 Shift Cable Assembly is a direct-fit replacement shift cable engineered for 1988-1993 OMC Cobra sterndrives (except King Cobra models) that are not equipped with a cone clutch. Shifting linkage cables like this one transmit the shift lever motion from the helm to the lower unit, so a worn, stretched, or corroded cable can cause slipping gears, delayed engagement, or an inability to shift at all. The 18-2245-1 restores precise, positive shift action so the drive engages forward, neutral, and reverse the way it was designed to. This assembly is built with a nylon and polyvinyl chloride (PVC) construction for corrosion resistance in the marine environment, and it is sized specifically for the 1988-1993 OMC Cobra (except King) application: a 68 inch wire with a 58 1\/2 inch jacket. It replaces OMC part number 987661, so it drops into the same shift cable routing and connection points as the original equipment cable it is designed to replace. Because OMC Cobra sterndrives were produced with both cone-clutch and non-cone-clutch shift mechanisms, and with a separate King Cobra variant, matching the correct part number matters: the 18-2245-1 is specifically for units without a cone clutch. If your Cobra sterndrive uses a cone clutch or is a King Cobra model, a different Sierra shift cable part number applies. Always confirm your drive's clutch type and model before ordering to be sure the wire and jacket lengths and the shift mechanism match your 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 18-2245-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 68 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket Length:\u003c\/strong\u003e 58 1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Nylon, Polyvinyl Chloride (PVC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 987661\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 1988-1993 OMC Cobra (except King), without cone clutch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1988-1993 OMC Cobra (except King), without cone clutch\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e987661\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2245-1 shift cable fit?\u003c\/strong\u003e The 18-2245-1 is designed for 1988-1993 OMC Cobra sterndrives, except the King Cobra, and only for units without a cone clutch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2245-1 the same as the OMC 987661 cable?\u003c\/strong\u003e Yes, the Sierra 18-2245-1 Shift Cable Assembly replaces OMC part number 987661 and is built to the same wire and jacket dimensions for a direct fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cable work on a King Cobra?\u003c\/strong\u003e No. The 18-2245-1 is specifically for OMC Cobra units except the King Cobra; the King Cobra uses a different Sierra shift cable assembly, part number 18-2246, with a 59 inch wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the wire on the 18-2245-1 shift cable?\u003c\/strong\u003e The wire measures 68 inches on the Sierra 18-2245-1 Shift Cable Assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the jacket length of this shift cable?\u003c\/strong\u003e The jacket length on the 18-2245-1 is 58 1\/2 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this shift cable fit drives with a cone clutch?\u003c\/strong\u003e No, the 18-2245-1 is built for 1988-1993 OMC Cobra (except King) applications without a cone clutch; a cone-clutch equipped drive requires a different cable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2245-1 shift cable made of?\u003c\/strong\u003e It is constructed of nylon and polyvinyl chloride (PVC) for durability in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2245-1 shift cable weigh?\u003c\/strong\u003e The 18-2245-1 Shift Cable Assembly weighs 1.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2245-1 an OEM part or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket shift cable assembly manufactured as a replacement for OMC part number 987661, built to match the original fit and function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2245-1?\u003c\/strong\u003e The order includes one complete Sierra 18-2245-1 Shift Cable Assembly, sized with a 68 inch wire and 58 1\/2 inch jacket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2245-1 different from the 18-2246 shift cable?\u003c\/strong\u003e The 18-2245-1 fits 1988-1993 OMC Cobra (except King) units without a cone clutch and has a 68 inch wire, while the 18-2246 is for the King Cobra and has a 59 inch wire.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105572571,"sku":"SIE-18-2245-1","price":134.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2245-1__52652.1739458589.500.750.jpg?v=1785189082"},{"product_id":"sierra-18-2172-engine-coupler-replaces-mercruiser-14505a2-fits-gm-v-6-v-8-305-350-cid","title":"Sierra 18-2172 Engine Coupler, Replaces 14505A2, for GM V6\/V8 Engines with Triangular 3-Bolt Coupler","description":"\u003cp\u003eThe Sierra 18-2172 Engine Coupler is a triangular, 3-bolt engine coupler built for GM V6 and V8 marine engines, excluding MC-I, Alpha, and Bravo drive applications. It is the direct replacement for OEM number 14505A2, and also cross-references to 38965A1, 38965A2, and 76850A2.\u003c\/p\u003e\u003cp\u003eThis coupler is used specifically when converting an engine that has a 2-piece rear main seal with a 3-1\/2 inch crankshaft bolt pattern over to a newer engine design that uses a 1-piece rear main seal with a 3 inch bolt pattern. The triangular, 3-bolt hole layout matches the mounting pattern required for this rear main seal conversion, allowing the coupler to bridge the two bolt patterns correctly.\u003c\/p\u003e\u003cp\u003eThe 18-2172 is round in shape with a white finish and weighs 3.88 pounds. Sierra states that this part meets or exceeds the performance of the original equipment part it replaces, and it is backed by Sierra's limited warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2172\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoupler Type:\u003c\/strong\u003e Triangular, 3-Bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Converts 2-piece rear main seal engine (3-1\/2 inch crankshaft bolt pattern) to 1-piece rear main seal engine (3 inch bolt pattern)\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 3.88 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999562463\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll GM engines except MC-I, Alpha, and Bravo applications, with triangular, 3-bolt coupler\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e14505A2\u003c\/li\u003e\n\u003cli\u003e38965A1\u003c\/li\u003e\n\u003cli\u003e38965A2\u003c\/li\u003e\n\u003cli\u003e76850A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2172 engine coupler replace?\u003c\/strong\u003e It replaces OEM number 14505A2, and it also cross-references to 38965A1, 38965A2, and 76850A2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-2172 coupler designed for?\u003c\/strong\u003e The Sierra 18-2172 fits all GM engines except MC-I, Alpha, and Bravo drive applications, and is built for a triangular, 3-bolt coupler pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need this coupler instead of the original one?\u003c\/strong\u003e This coupler is needed when replacing a V6 or V8 engine that has a 2-piece rear main seal with a 3-1\/2 inch crankshaft bolt pattern with a newer engine that has a 1-piece rear main seal and a 3 inch bolt pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2172 coupler weigh?\u003c\/strong\u003e The Sierra 18-2172 engine coupler weighs 3.88 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and color is the coupler?\u003c\/strong\u003e The 18-2172 coupler is round in shape with a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2172 coupler a direct OEM replacement?\u003c\/strong\u003e Yes, it is a direct replacement for 14505A2 and cross-references to 38965A1, 38965A2, and 76850A2, matching the original triangular 3-bolt mounting pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the box with the Sierra 18-2172?\u003c\/strong\u003e One Sierra 18-2172 engine coupler, identified by UPC 030999562463.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2172 meet OEM performance standards?\u003c\/strong\u003e Yes, Sierra states that the 18-2172 meets or exceeds the performance of the original 14505A2 equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-2172 on Alpha or Bravo drive engines?\u003c\/strong\u003e No, the 18-2172 is designed for GM engines and specifically excludes MC-I, Alpha, and Bravo drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2172 covered by warranty?\u003c\/strong\u003e Yes, the 18-2172 is covered under Sierra's limited warranty that applies to Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC does the 18-2172 coupler use?\u003c\/strong\u003e The Sierra 18-2172 engine coupler carries UPC 030999562463.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does a 2-piece to 1-piece rear main seal conversion need a different coupler?\u003c\/strong\u003e Because the crankshaft bolt pattern changes from 3-1\/2 inch to 3 inch between the two rear main seal designs, and the 18-2172's triangular, 3-bolt pattern bridges that difference.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105605339,"sku":"SIE-18-2172","price":372.87,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2172_lg__25494.1558121506.500.750.jpg?v=1785189003"},{"product_id":"sierra-18-21753-engine-coupler-for-volvo-penta-5-0l-5-8l-1989-96-replaces-oem-3853862","title":"Sierra 18-21753 Engine Coupler, White, Replaces OMC 3853862 \/ Volvo 3853862-5, Fits Volvo Penta 50L \u0026 58L (1989-1996)","description":"\u003cp\u003eThe Sierra 18-21753 is a white engine coupler engineered as a direct-fit replacement for Volvo Penta 50L and 58L engines built between 1989 and 1996. The coupler connects the engine output to the drive system, transmitting rotational power while accommodating the slight misalignment inherent in the coupling joint. It is built to Sierra's OEM specification standard, so it installs the same way as the original coupler it replaces and restores proper power transfer between the engine and drive unit.\u003c\/p\u003e\u003cp\u003eThis coupler is a direct cross-reference match for the OMC 3853862, Volvo 3853862-5, and 985727 part numbers, making it a straightforward swap for boat owners and marine technicians replacing a worn, cracked, or failed original coupler. Because a coupler is a wear item subject to constant torque and vibration loads, replacing it with a part built to OEM spec helps ensure reliable engine-to-drive power transmission and reduces the risk of premature failure from an ill-fitting substitute.\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 18-21753\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 6.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Volvo Penta 50L \u0026amp; 58L (1989-1996)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e OMC 3853862, Volvo 3853862-5, 985727\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282186388\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta 50L (1989-1996)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 58L (1989-1996)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 3853862\u003c\/li\u003e\n\u003cli\u003eVolvo 3853862-5\u003c\/li\u003e\n\u003cli\u003e985727\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-21753 engine coupler fit?\u003c\/strong\u003e The Sierra 18-21753 fits Volvo Penta 50L and 58L engines built from 1989 to 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-21753 replace?\u003c\/strong\u003e It cross-references to OMC 3853862, Volvo 3853862-5, and 985727, so any of those OEM numbers point to this same coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-21753 engine coupler?\u003c\/strong\u003e It is finished in white, matching the original equipment coupler it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-21753 engine coupler weigh?\u003c\/strong\u003e The Sierra 18-21753 weighs 6.57 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21753 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-manufactured replacement built to OEM specification, sold under the Sierra 18-21753 part number rather than under the original OMC or Volvo part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this coupler work if my engine data plate lists OMC 3853862?\u003c\/strong\u003e Yes, the Sierra 18-21753 is the direct cross-reference replacement for OMC 3853862.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-21753 also replace Volvo Penta part 985727?\u003c\/strong\u003e Yes, 985727 is one of the OEM numbers this Sierra coupler replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the engine coupler do?\u003c\/strong\u003e The 18-21753 connects the engine output to the drive system, transferring rotational power while accommodating minor misalignment at the coupling joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-21753 the same as the original coupler?\u003c\/strong\u003e Yes, since it is built to OEM specification and matches the original OMC 3853862 \/ Volvo 3853862-5 coupler, it installs using the same mounting arrangement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-21753?\u003c\/strong\u003e The order includes one Sierra 18-21753 white engine coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this coupler fit engines outside the 1989-1996 range?\u003c\/strong\u003e The Sierra 18-21753 is specified for Volvo Penta 50L and 58L engines from 1989 to 1996; fitment outside that range is not confirmed.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105638107,"sku":"SIE-18-21753","price":444.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21753__79046.1729786508.500.750.jpg?v=1785188911"},{"product_id":"sierra-18-2221-gear-set-for-johnson-evinrude-omc-brp-outboards-replaces-oem-434063-333077-323664-forward-gear-reverse-gear-sliding-clutch","title":"Sierra 18-2221 Gear Set for Johnson\/Evinrude Outboards 112-125 HP","description":"\u003cp\u003eThe Sierra 18-2221 Gear Set is a replacement drive-train gear set built for Johnson\/Evinrude (OMC\/BRP) outboard motors. It is engineered to meet or exceed the quality of the original equipment gear set it replaces, giving boat owners a dependable way to restore proper shifting and power transfer in the lower unit without sourcing increasingly scarce OEM parts. The gear set is manufactured to Sierra's marine-duty standards, which means it is built to hold up to the constant load reversals, saltwater exposure, and heat cycling that outboard drive components see in service.\u003c\/p\u003e\u003cp\u003eThis gear set is designed for use with a specific range of Johnson\/Evinrude outboards spanning 112 HP through 125 HP commercial models, matched to particular years and drive configurations. A companion pinion gear, Sierra 18-1288, is sold separately and is commonly installed alongside this gear set during a lower unit rebuild. Because outboard lower units use closely related gear sets across different horsepower and year combinations, it is important to confirm the exact HP, year, and model before ordering to ensure this is the correct gear set for the 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 18-2221\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gear Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Outboard Lower Unit Drive System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brand:\u003c\/strong\u003e Johnson\/Evinrude (OMC\/BRP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.85 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999621306\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion Pinion (sold separately):\u003c\/strong\u003e Sierra 18-1288\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable With:\u003c\/strong\u003e GLM 22630, Mallory 9-73560\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 112 HP, 1994-96, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 115 HP, 1978-85 and 1990-98, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 115 HP, 1999, 20 inch 60 degree V4\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 120 HP, 1986-92, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 120 HP, 1993-94, TL and TX\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 125 HP Commercial, 1989-90\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 22630\u003c\/li\u003e\n\u003cli\u003eMallory 9-73560\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2221 Gear Set used for?\u003c\/strong\u003e It is a replacement gear set for the lower unit drive system of Johnson\/Evinrude (OMC\/BRP) outboard motors, restoring proper gear engagement and power transfer when the original gears wear out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboards does the 18-2221 gear set fit?\u003c\/strong\u003e This gear set fits Johnson\/Evinrude outboards including 112 HP (1994-96, all models), 115 HP (1978-85 and 1990-98, all models, and the 1999 20 inch 60 degree V4), 120 HP (1986-92 all models, and 1993-94 TL and TX), and 125 HP Commercial models (1989-90). Confirm your engine's exact HP, year, and model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2221 equivalent to any other brand's part?\u003c\/strong\u003e Yes, the Sierra 18-2221 Gear Set is interchangeable with GLM 22630 and Mallory 9-73560.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to buy the pinion gear separately?\u003c\/strong\u003e Yes, the companion pinion, Sierra 18-1288, is sold separately from the 18-2221 Gear Set and is typically replaced at the same time during a lower unit rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2221 Gear Set weigh?\u003c\/strong\u003e The Sierra 18-2221 Gear Set weighs 3.85 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-2221 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket gear set manufactured by Sierra to meet or exceed the quality of the original equipment gear set it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gear sets come in one order?\u003c\/strong\u003e One Sierra 18-2221 Gear Set is included per unit ordered.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gear set be used on a 1993-94 120 HP TX model?\u003c\/strong\u003e Yes, the 18-2221 Gear Set is listed for 1993-94 120 HP TL and TX Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this gear set fit a 1999 115 HP outboard?\u003c\/strong\u003e It fits the 1999 115 HP Johnson\/Evinrude with the 20 inch 60 degree V4 configuration; a different gear set (18-2251) is used for the 25 inch transom version of the same year and horsepower.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat should I check before ordering the 18-2221 Gear Set?\u003c\/strong\u003e Match your outboard's exact horsepower, model year, and model designation against the fitment list, since Johnson\/Evinrude outboards use several closely related gear sets across similar horsepower ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2221 Gear Set include the shift clutch?\u003c\/strong\u003e No, the shift clutch is a separate component (listed as 18-2220 or 18-2200 depending on application) from the 18-2221 Gear Set itself.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105670875,"sku":"SIE-18-2221","price":331.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2221_lg__57137.1558124238.500.750.jpg?v=1785188232"},{"product_id":"sierra-18-2288-propeller-shaft-for-evinrude-outboard-replaces-wm-118-2288-machined-prop-shaft","title":"Sierra Prop Shaft 18-2288 for Evinrude 25D\/40\/48\/50 HP Outboards","description":"\u003cp\u003eThe Sierra 18-2288 is a machined prop shaft engineered as a direct-fit driveline component for select Evinrude outboard motors. As the shaft that connects the outboard's lower unit gearcase to the propeller, it transmits rotational power from the forward and reverse gear set to the prop, so its dimensional accuracy and finish directly affect smooth power transfer and gearcase alignment. The shaft carries a machined exterior finish for consistent fit against the gear set and clutch components it works alongside in the lower unit.\u003c\/p\u003e\u003cp\u003eThis part is built for Evinrude 25D, 40, 48, and 50 HP (2 Cylinder) outboards across the model years listed below. Always confirm your outboard's horsepower rating, model year, and cylinder configuration against the fitment table before ordering, since Sierra assigns different prop shaft part numbers to other Evinrude horsepower ranges and years.\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 18-2288\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Shaft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.92 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 808282236052\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvinrude 25D, 1989-95, ALL models\u003c\/li\u003e\n\u003cli\u003eEvinrude 40 HP, 1989-97, ALL models\u003c\/li\u003e\n\u003cli\u003eEvinrude 48 HP, 1989-96, ALL models\u003c\/li\u003e\n\u003cli\u003eEvinrude 50 HP (2 Cyl.), 1989-97\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat outboards does the Sierra 18-2288 prop shaft fit?\u003c\/strong\u003e The 18-2288 fits Evinrude 25D outboards from 1989-95, Evinrude 40 HP outboards from 1989-97, Evinrude 48 HP outboards from 1989-96, and Evinrude 50 HP 2 Cylinder outboards from 1989-97, all model configurations listed as ALL for those horsepower and year combinations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an OEM cross-reference number for this prop shaft?\u003c\/strong\u003e No separate OEM cross-reference or replaces number is listed for this part; 18-2288 is the part number to use when ordering or verifying fit against your outboard's parts diagram.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2288 prop shaft weigh?\u003c\/strong\u003e The Sierra 18-2288 prop shaft weighs 2.92 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-2288 prop shaft have?\u003c\/strong\u003e This prop shaft has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2288 fit a 50 HP Evinrude with a 3 cylinder engine?\u003c\/strong\u003e No. The 18-2288 is specified for the 50 HP 2 Cylinder Evinrude configuration from 1989-97; a 3 cylinder 50 HP Evinrude from 1997 uses a different Sierra prop shaft part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2288 come with the gear set or clutch?\u003c\/strong\u003e The 18-2288 listing covers the prop shaft only; the forward gear, reverse gear, and clutch used alongside it in the lower unit are separate, individually numbered components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2288 prop shaft?\u003c\/strong\u003e The listed product dimensions for the Sierra 18-2288 are 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2288 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-2288 is a genuine Sierra-branded prop shaft, identified by Sierra part number 18-2288 and UPC 808282236052.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-2288 on a 40 HP Evinrude from the 1980s?\u003c\/strong\u003e Only if the engine falls within the 1989-97 model years listed for the 40 HP fitment; 40 HP Evinrude outboards built in 1984-88 use a different prop shaft part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the box with the 18-2288 prop shaft?\u003c\/strong\u003e The 18-2288 ships as a single machined prop shaft component.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105736411,"sku":"SIE-18-2288","price":117.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2288_lg__65344.1558123964.500.750.jpg?v=1785188306"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/41QUX6lF5AL.jpg?v=1785357514","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-propellers-drive-lower-unit.oembed?page=2","provider":"Good Vibes Marina","version":"1.0","type":"link"}