{"product_id":"sierra-18-2014-oil-seal-for-mercury-outboard-powerhead-replaces-26-817472-26-89238","title":"Sierra Oil Seal 18-2014, Replaces Mercury Marine 26-89238, Fits R\/MR and Alpha I Stern Drives","description":"\u003cp\u003eThe Sierra Oil Seal 18-2014 is a round, white oil seal engineered as a direct replacement for the oil seal used in specific stern drive applications. It is listed with an oil seal description code of WPB,L and is supplied one per package. This seal is a precision-fit replacement part designed to restore proper sealing where the original equipment seal has worn out, hardened, or begun to leak, helping protect stern drive components from water intrusion and lubricant loss.\u003c\/p\u003e\u003cp\u003eSierra part number 18-2014 is a direct cross-reference for Mercury Marine part number 26-89238, so boat owners and marine technicians can order it as a drop-in equivalent to the original Mercury Marine seal. It is designed for use on R and MR stern drives equipped with Alpha I lower units from serial number 6225577 and up, as well as Alpha I SS stern drives across all serial numbers. Because stern drive seal applications vary by serial number range and drive model, confirming the drive model and serial number before ordering helps ensure the correct seal is installed.\u003c\/p\u003e\u003cp\u003eThe seal is compact and lightweight, consistent with its role as a small sealing component within the stern drive water pump base assembly area. Its white finish and round shape are as supplied by the manufacturer.\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 18-2014\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Oil Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Seal Description Code:\u003c\/strong\u003e WPB,L\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\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 12.9 cm H x 0.4 cm L x 9.8 cm W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Application:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999309600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e Mercury Marine 26-89238\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eR and MR stern drives with Alpha I, serial number 6225577 and up\u003c\/li\u003e\n\u003cli\u003eAlpha I SS stern drives, all serial numbers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 26-89238\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does Sierra oil seal 18-2014 replace?\u003c\/strong\u003e Sierra 18-2014 is a direct cross-reference for Mercury Marine part number 26-89238, so it can be ordered as an equivalent replacement for that original seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich stern drives use the 18-2014 oil seal?\u003c\/strong\u003e This seal fits R and MR stern drives equipped with Alpha I from serial number 6225577 and up, as well as Alpha I SS stern drives across all serial numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seals come in a package?\u003c\/strong\u003e The Sierra 18-2014 oil seal is supplied one per package, listed at a quantity of 1 per application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-2014 seal?\u003c\/strong\u003e It is white, and it has a round shape as supplied by Sierra.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2014 oil seal weigh?\u003c\/strong\u003e The seal weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-2014 oil seal?\u003c\/strong\u003e The package measures 12.9 cm H x 0.4 cm L x 9.8 cm W.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs my stern drive serial number important when ordering this seal?\u003c\/strong\u003e Yes. Sierra 18-2014 is specified for R\/MR stern drives with Alpha I from serial number 6225577 and up, so checking your drive's serial number against that range helps confirm fit; Alpha I SS stern drives are covered at all serial numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2014 an OEM or aftermarket seal?\u003c\/strong\u003e It is a Sierra-branded aftermarket seal manufactured as a cross-reference replacement for Mercury Marine 26-89238, not an original Mercury Marine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2014 oil seal?\u003c\/strong\u003e The UPC for Sierra oil seal 18-2014 is 030999309600.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes part number 18-2014 fit Bravo I stern drives?\u003c\/strong\u003e No. Sierra 18-2014 is specified for R\/MR stern drives with Alpha I and for Alpha I SS stern drives; Bravo I applications use a different Sierra oil seal part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the WPB,L designation on the 18-2014 seal?\u003c\/strong\u003e WPB,L is the oil seal description code Sierra assigns to part number 18-2014 in its stern drive application listings.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988090433755,"sku":"SIE-18-2014","price":15.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2014__95073.1722378445.500.750.jpg?v=1785189080","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2014-oil-seal-for-mercury-outboard-powerhead-replaces-26-817472-26-89238","provider":"Good Vibes Marina","version":"1.0","type":"link"}