{"product_id":"sierra-18-7141-9-lower-unit-o-ring-5-pack-replaces-omc-f498618-for-johnson-evinrude-omc-gearcases","title":"Sierra 18-7141-9 O-Ring, Replaces 25-F40342, Pack of 5","description":"\u003cp\u003eThe Sierra 18-7141-9 O-Ring is a rubber sealing O-ring sold in a pack of 5, designed as a direct cross-reference replacement for OEM number 25-F40342. It is listed under Sierra's Volvo Penta Sterndrive Parts category, making it suited for sterndrive service and maintenance work where this seal size is required. The O-ring is molded in black rubber for reliable sealing performance in marine drive applications.\u003c\/p\u003e\u003cp\u003eSelling this O-ring in a pack of 5 lets boat owners and technicians keep spares on hand for routine maintenance, drive rebuilds, or multi-point service jobs without having to reorder a single piece at a time. Because it is a direct OEM cross-reference part, it is intended to install in the same location and perform the same sealing function as the original 25-F40342 O-ring 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 18-7141-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e O-Ring\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 Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282165208\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 25-F40342\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Volvo Penta Sterndrive Parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eListed for Volvo Penta sterndrive applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e25-F40342\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-7141-9 O-Ring replace?\u003c\/strong\u003e It cross-references to OEM part number 25-F40342, so it is intended to be used as a direct replacement for that seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many O-rings come in this package?\u003c\/strong\u003e The 18-7141-9 is sold as a pack of 5 O-rings, letting you keep spares on hand for future service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-7141-9 O-Ring made of?\u003c\/strong\u003e It is made of black rubber, a standard material choice for sealing O-rings in marine drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat application is this O-ring designed for?\u003c\/strong\u003e Sierra lists the 18-7141-9 O-Ring under its Volvo Penta Sterndrive Parts category.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-7141-9 is a Sierra-branded part manufactured to cross-reference the original 25-F40342 O-ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The Sierra 18-7141-9 O-Ring 5-pack carries UPC 808282165208.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7141-9 O-Ring pack weigh?\u003c\/strong\u003e The pack weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy just one O-ring instead of the pack?\u003c\/strong\u003e The 18-7141-9 is sold only as a pack of 5, not as an individual unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-7141-9 O-Ring?\u003c\/strong\u003e It is black, the standard color for this rubber O-ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy a pack instead of a single O-ring?\u003c\/strong\u003e Buying the 18-7141-9 in a 5-pack is more economical for owners who service their sterndrive regularly or want spares ready for the next maintenance job.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988364603611,"sku":"SIE-18-7141-9","price":8.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-7141-9__67675.1722356265.500.750.jpg?v=1785188234","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7141-9-lower-unit-o-ring-5-pack-replaces-omc-f498618-for-johnson-evinrude-omc-gearcases","provider":"Good Vibes Marina","version":"1.0","type":"link"}