{"product_id":"seal-ring-gasket-quad-ring-replaces-26-45577-for-mercruiser-r-mr-alpha-bravo-sterndrives-sierra-18-2944-9-pack-of-2","title":"Sierra 18-2944-9 Seal Ring Gasket - Fits R, MR, Alpha and Bravo Drives - Pack of 2","description":"\u003cp\u003eThe Sierra 18-2944-9 is a seal ring gasket sold in a pack of two, designed as a round quad-ring seal for marine sterndrive applications. It fits R, MR, Alpha, and Bravo drives, making it a common replacement item for boat owners servicing their outdrive housing. The quad ring shape provides a reliable seal against water and fluid intrusion at the drive interface, helping prevent leaks that can lead to corrosion or lubricant loss.\u003c\/p\u003e\u003cp\u003eEach pack contains two seal rings, allowing for a complete service on both mating surfaces or providing a spare for future maintenance. As a Sierra part, it is built to match OEM fit and function for the drives it is designated for. The compact, lightweight design (0.01 pounds per pack) makes it an inexpensive but important part of routine outdrive maintenance, and it is identified by UPC 808282164317 for easy verification when 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 18-2944-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Volvo Penta Timing Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e Pack of 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e R, MR, Alpha and Bravo drives\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 808282164317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00808282164317\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eR drives\u003c\/li\u003e\n\u003cli\u003eMR drives\u003c\/li\u003e\n\u003cli\u003eAlpha drives\u003c\/li\u003e\n\u003cli\u003eBravo drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2944-9 seal ring gasket used for?\u003c\/strong\u003e It is a seal ring gasket used at the outdrive housing to seal against water and fluid intrusion, and the Sierra 18-2944-9 is sold in a pack of two for this purpose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the 18-2944-9 fit?\u003c\/strong\u003e The Sierra 18-2944-9 fits R, MR, Alpha, and Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seal rings come in one package?\u003c\/strong\u003e One package of part number 18-2944-9 contains two seal ring gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the Sierra 18-2944-9 seal ring?\u003c\/strong\u003e It is a round seal ring, consistent with a quad-ring style seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a pack of the 18-2944-9 weigh?\u003c\/strong\u003e A pack of the Sierra 18-2944-9 seal ring gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2944-9 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-2944-9 is manufactured and sold by Sierra.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2944-9?\u003c\/strong\u003e The UPC for this seal ring gasket pack is 808282164317.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy the 18-2944-9 as a single seal ring?\u003c\/strong\u003e No, the Sierra 18-2944-9 is sold only as a pack of two seal rings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2944-9 fit Alpha One or Bravo outdrives?\u003c\/strong\u003e Yes, the 18-2944-9 is listed as fitting Alpha and Bravo drives, along with R and MR drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of seal is included with part number 18-2944-9?\u003c\/strong\u003e The pack includes quad ring style seal rings under Sierra part number 18-2944-9.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988135293147,"sku":"SIE-18-2944-9","price":4.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2944-9__64069.1737871532.500.750.jpg?v=1785188247","url":"https:\/\/www.goodvibesmarina.com\/products\/seal-ring-gasket-quad-ring-replaces-26-45577-for-mercruiser-r-mr-alpha-bravo-sterndrives-sierra-18-2944-9-pack-of-2","provider":"Good Vibes Marina","version":"1.0","type":"link"}