{"product_id":"sierra-18-1237-oil-pan-gasket-replaces-27-13865","title":"Sierra Oil Pan Gasket - SIE-18-1237","description":"\u003cp\u003eSierra 18-1237 Oil Pan Gasket for 265 - 400 hp\u003c\/p\u003e\u003cp\u003eSierra replacement oil pan gasket for Mercruiser Stern Drives, OMC Stern Drives and Volvo Penta engines.\u003c\/p\u003e\u003cp\u003eFits MCM\/MIE GM V-8 (305, 350 \u0026amp; 377 cid) engines w\/ 1 pc. RM seal (1985 \u0026amp; newer)\u003c\/p\u003e\u003cp\u003eInterchangeable with:\u003c\/p\u003e\u003cp\u003eGLM\u003c\/p\u003e\u003cp\u003e39850\u003c\/p\u003e\u003cp\u003eMallory\u003c\/p\u003e\u003cp\u003e9-61504\u003c\/p\u003e\u003cp\u003eMercruiser Stern Drive\u003c\/p\u003e\u003cp\u003e27-138651\u003c\/p\u003e\u003cp\u003e27-13865\u003c\/p\u003e\u003cp\u003eFI1101281\u003c\/p\u003e\u003cp\u003eOMC Stern Drive\u003c\/p\u003e\u003cp\u003e3856138\u003c\/p\u003e\u003cp\u003eVolvo Penta\u003c\/p\u003e\u003cp\u003e3856138\u003c\/p\u003e\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWhat is the Sierra 18-1237 Oil Pan Gasket used for? The Sierra 18-1237 Oil Pan Gasket is a replacement gasket for MerCruiser Stern Drive, OMC Stern Drive, and Volvo Penta applications. It is designed for specified MCM\/MIE GM V-8 engines with a one-piece rear main seal, providing a replacement option for the oil pan gasket on compatible marine engines.\u003c\/li\u003e\n\u003cli\u003eWhat engines does the Sierra 18-1237 Oil Pan Gasket fit? The Sierra 18-1237 fits MCM\/MIE GM V-8 engines with 305, 350, and 377 cubic-inch displacements that use a one-piece rear main seal. The listed application is for engines from 1985 and newer, so verify your engine configuration and rear main seal type before ordering.\u003c\/li\u003e\n\u003cli\u003eIs the Sierra 18-1237 compatible with MerCruiser, OMC, and Volvo Penta engines? Yes. The Sierra 18-1237 is listed as a replacement oil pan gasket for MerCruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines. Compatibility is specifically identified for MCM\/MIE GM V-8 engines with a one-piece rear main seal from 1985 and newer.\u003c\/li\u003e\n\u003cli\u003eWhat rear main seal configuration does the Sierra 18-1237 Oil Pan Gasket require? The Sierra 18-1237 is specified for MCM\/MIE GM V-8 engines equipped with a one-piece rear main seal. Because the application is dependent on this configuration, confirm that your engine uses a one-piece rear main seal before selecting this oil pan gasket.\u003c\/li\u003e\n\u003cli\u003eWhat part numbers is the Sierra 18-1237 Oil Pan Gasket interchangeable with? The Sierra 18-1237 is interchangeable with GLM 39850 and Mallory 9-61504. Listed MerCruiser Stern Drive references are 27-138651, 27-13865, and FI1101281. OMC Stern Drive and Volvo Penta both list 3856138 as an interchangeable part number.\u003c\/li\u003e\n\u003cli\u003eWhat should I verify before purchasing the Sierra 18-1237 Oil Pan Gasket? Verify that your marine engine is an MCM\/MIE GM V-8 with a 305, 350, or 377 cubic-inch displacement and a one-piece rear main seal. Also confirm the engine is a 1985 or newer application and compare the existing gasket or applicable part number with the listed interchange references.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":50582406037762,"sku":"SIE-18-1237","price":62.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/3024\/2562\/files\/SIE-18-1237_lg__22321.1558119516.jpg?v=1791081163","url":"https:\/\/allmarineworld.com\/products\/sierra-18-1237-oil-pan-gasket-replaces-27-13865","provider":"All Marine World","version":"1.0","type":"link"}