{"product_id":"merc-489","title":"Mercury MerCruiser Quicksilver Rear Crankshaft Oil Seal 75585","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eMercury MerCruiser Quicksilver 26-75585 is a legacy rear crankshaft-bearing-cap oil seal for specified GM 454 cu. in. MerCruiser engines. The 330 MIE piston-and-crankshaft diagram identifies it for the left-hand-rotation engine arrangement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLegacy Mercury oil-seal reference: 26-75585.\u003c\/li\u003e\n\u003cli\u003eRear crankshaft \/ rear main-bearing-cap location.\u003c\/li\u003e\n\u003cli\u003eCatalog replacement references include 26-14756 and the later 26-8M0062773.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\u003cp\u003eVerified application: MerCruiser 330 MIE, GM 454 V8, 1977–1980, serial numbers 4623115 through 5889913, in the left-hand-rotation configuration shown in the parts diagram. Confirm the engine generation, rotation and rear-seal design before ordering.\u003c\/p\u003e\u003ch2\u003eReplacement and Installation\u003c\/h2\u003e\u003cp\u003eInvestigate the source of an oil leak before replacing the rear seal. Inspect the crankshaft sealing surface and bearing-cap joint, then follow the engine manual for seal orientation, joint preparation and assembly sequence.\u003c\/p\u003e\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\u003cp\u003eBig-block rear seals vary with engine generation and rotation. Match the exact crankshaft diagram rather than ordering only by 7.4L displacement.\u003c\/p\u003e\u003ch2\u003eManufacturer Parts Lookup\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.mercurymarine.com\/us\/en\/parts-finder\"\u003eUse Mercury’s official parts finder\u003c\/a\u003e to check the part against your engine or drive serial number.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563870879780,"sku":"75585","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/mercury-brand-placeholder-user-provided_1aaaaf4a-8c0c-4137-b523-9a6f35956a65.jpg?v=1791242996","url":"https:\/\/marisolmarine.com\/products\/merc-489","provider":"Marisol Marine Company","version":"1.0","type":"link"}