{"product_id":"sierra-18-0345-water-pump-gasket-replaces-chrysler-12-866451-chrysler-inboard-engines","title":"Sierra Water Pump Gasket 18-0345, GLM 37490 Cross Reference, Chrysler Inboard","description":"\u003cp\u003eThe Sierra Water Pump Gasket, part number 18-0345, is a round gasket designed for Chrysler inboard water pump applications. It seals the water pump housing to prevent coolant or raw water leakage at the mating surface, protecting the pump and surrounding engine components from moisture intrusion and pressure loss during operation.\u003c\/p\u003e\u003cp\u003eThis gasket is sold as a single unit and is intended to be replaced any time the water pump housing is removed or serviced, since reusing an old gasket can allow leaks to develop even if it looks intact. It carries the Sierra brand name and part number 18-0345, and cross-references to GLM number 37490, so buyers who know either numbering system can confirm they are ordering the correct gasket for their Chrysler inboard water pump.\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 18-0345\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Pump Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chrysler Inboard Water Pumps and Impellers\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\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 808282145798\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLM Cross Reference Number:\u003c\/strong\u003e 37490\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eChrysler inboard water pumps\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGLM 37490\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Sierra part number 18-0345?\u003c\/strong\u003e It is a round water pump gasket made by Sierra for Chrysler inboard water pump applications, sold as a single gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes GLM number 37490 match this gasket?\u003c\/strong\u003e Yes, GLM number 37490 cross-references directly to Sierra 18-0345, so either number identifies the same water pump gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0345 gasket weigh?\u003c\/strong\u003e The Sierra 18-0345 water pump gasket weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the Sierra 18-0345 gasket?\u003c\/strong\u003e It is round in shape, matching the mating surface of the Chrysler inboard water pump housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a package of 18-0345?\u003c\/strong\u003e Each package of Sierra 18-0345 contains a single water pump gasket, listed as a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace the gasket every time I remove the water pump?\u003c\/strong\u003e Yes, the Sierra 18-0345 gasket should be replaced whenever the Chrysler inboard water pump housing is removed, since a reused gasket can leak even if it appears undamaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine application is the 18-0345 gasket used for?\u003c\/strong\u003e Sierra 18-0345 is used on Chrysler inboard water pump and impeller assemblies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-0345 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-0345 is the Sierra manufacturer part number for this water pump gasket, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-0345 gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0345 water pump gasket is 808282145798.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the GLM 37490 number to order this part?\u003c\/strong\u003e Yes, GLM 37490 is the cross-reference number for Sierra 18-0345, so referencing either number will get you the correct gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988065530075,"sku":"SIE-18-0345","price":5.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0345_lg__76482.1558118436.500.750.jpg?v=1785188083","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-0345-water-pump-gasket-replaces-chrysler-12-866451-chrysler-inboard-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}