{"product_id":"sierra-18-2541-water-pump-o-ring-seal-replaces-omc-johnson-evinrude-911704-omc-water-pump-repair","title":"Sierra 18-2541 O-Ring Rubber Seal, Replaces OEM 911704 and 984461","description":"\u003cp\u003eThe Sierra 18-2541 is a rubber O-ring seal engineered as a direct replacement for original equipment engine components. Molded from black rubber, it is built to meet or exceed the specifications of the original equipment part it replaces, providing a reliable seal against water and fluid intrusion in the engine application it serves. Its compact size and light weight of 0.01 pounds reflect its role as a precision internal sealing component rather than a structural part.\u003c\/p\u003e\u003cp\u003eEach unit is a single O-ring, sold individually, and is intended as a like-for-like replacement for an original equipment seal bearing the OEM number 911704. It is commonly stocked alongside other OMC internal engine parts and is used when servicing or rebuilding engine assemblies that call for this exact seal. Because it directly replaces the original equipment number, it drops into the same location 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 18-2541\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e O-Ring \/ Rubber Seal\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\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 911704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e 984461\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999752833\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e911704\u003c\/li\u003e\n\u003cli\u003e984461\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2541?\u003c\/strong\u003e The Sierra 18-2541 is a black rubber O-ring seal used as a direct replacement engine sealing component, sold as a single individual unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-2541 replace?\u003c\/strong\u003e It replaces OEM numbers 911704 and 984461, so either of those original equipment numbers can be cross-referenced to the Sierra 18-2541.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2541 seal made from?\u003c\/strong\u003e It is made from black rubber, a material chosen for its flexibility and resistance to fluid exposure in engine sealing applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2541 O-ring weigh?\u003c\/strong\u003e The Sierra 18-2541 weighs 0.01 pounds, consistent with its role as a small internal sealing component rather than a structural part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2541 an aftermarket or genuine OEM part?\u003c\/strong\u003e The 18-2541 is an aftermarket replacement seal built to meet or exceed the specifications of the original equipment part it replaces, identified by OEM numbers 911704 and 984461.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many O-rings come in one 18-2541 package?\u003c\/strong\u003e One Sierra 18-2541 rubber seal is included per unit; quantity needed depends on how many seals the specific engine service calls for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2541 be used to service OMC internal engine components?\u003c\/strong\u003e Yes, the 18-2541 is categorized as an OMC internal engine part and is intended for use when servicing engine assemblies that require this seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2541 come in any color other than black?\u003c\/strong\u003e No, the Sierra 18-2541 rubber seal is produced in black only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-2541 seal straightforward?\u003c\/strong\u003e As a direct-replacement O-ring for OEM numbers 911704 and 984461, the 18-2541 installs in the same location as the original seal without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-2541 and the original OEM seal?\u003c\/strong\u003e Functionally, the 18-2541 is designed to meet or exceed the original equipment seal's specifications; the difference is that it is sold under the Sierra brand rather than the original OEM part number.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107538651,"sku":"SIE-18-2541","price":8.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2541_lg__68923.1558122845.500.750.jpg?v=1785188148","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2541-water-pump-o-ring-seal-replaces-omc-johnson-evinrude-911704-omc-water-pump-repair","provider":"Good Vibes Marina","version":"1.0","type":"link"}