{"product_id":"a-premium-engine-rear-main-seal-cover-kit-for-ohv-v8-4-8-7-0l-direct-fit-integrated-sealing","title":"A-Premium Engine Rear Main Seal Cover Kit for OHV V8 4.8–7.0L – Direct-Fit, Integrated Sealing","description":"\u003cp\u003e\u003cstrong\u003eA-Premium Engine Rear Main Seal Cover Kit replaces the rear main seal area for OHV V8 engines (4.8, 5.3, 5.7, 6.0, 6.2 and 7.0L) to restore reliable crankshaft sealing and simplify installation on many GM and related vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis rear main seal cover kit from A-Premium is built as a direct-fit replacement for a wide range of GM-family trucks, SUVs, vans and performance cars. It groups the cover, integrated sealing surfaces and mounting points into one assembly sized to the factory dimensions, which helps reduce installation time and ensures proper crankshaft alignment. The kit lists multiple OEM reference numbers for cross-checking and includes a one-year unlimited-mileage guarantee from A-Premium on workmanship.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this rear main seal cover kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit supports many Chevrolet, GMC, Cadillac, Buick, Pontiac, Hummer and Isuzu platforms spanning late 1990s through 2020 model years. Fitment covers light trucks, full-size vans, SUVs and several performance models with OHV V8 engines. Always verify part reference numbers and engine displacement before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevrolet: Avalanche, Camaro, Corvette, Silverado (1500\/2500\/3500 variations), Tahoe, Suburban, Impala and more\u003c\/li\u003e\n  \u003cli\u003eGMC: Sierra, Canyon, Savana, Yukon series, Envoy and similar models\u003c\/li\u003e\n  \u003cli\u003eOther: Cadillac Escalade\/CTS, Hummer H2\/H3, Pontiac GTO\/G8, Saab 9-7X, Isuzu NPR series, Buick LaCrosse\/Rainier\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 635-518, 12633579, 12639250, 12615666, 12598301 and related SK\/8-12### cross-refs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit help during an engine seal replacement?\u003c\/h3\u003e\n\u003cp\u003eThe cover kit consolidates the rear main seal housing and related sealing surfaces into a pre-formed assembly that aligns to factory mounting points. That reduces the need for multiple separate parts and helps prevent common installation errors that cause leaks. Technicians and DIYers benefit from easier handling and fewer alignment adjustments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-formed cover matches factory bolt pattern for correct alignment\u003c\/li\u003e\n  \u003cli\u003eIntegrated sealing surfaces minimize risk of oil seepage around the crankshaft\u003c\/li\u003e\n  \u003cli\u003eSized to original specifications: 2.7\" inside diameter, 10\" length, 6\" width\u003c\/li\u003e\n  \u003cli\u003eIncludes cross-reference OEM numbers to confirm compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before ordering to ensure fitment?\u003c\/h3\u003e\n\u003cp\u003eConfirm your engine displacement (4.8–7.0L OHV V8) and vehicle model-year range against the listed fitment. Match one of the reference part numbers or SK numbers to your vehicle’s parts documentation. If you plan to replace the main seal, inspect the crankshaft surface for wear and verify the pilot\/bearing areas are within spec.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify engine size and OHV configuration\u003c\/li\u003e\n  \u003cli\u003eCross-check reference numbers (e.g., 12633579, 12598301)\u003c\/li\u003e\n  \u003cli\u003eInspect crankshaft sealing surface for scoring before install\u003c\/li\u003e\n  \u003cli\u003eMeasure mounting face and bolt pattern against the existing cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the kit include and what can I expect from A-Premium's support?\u003c\/h3\u003e\n\u003cp\u003eThe kit is supplied as a complete rear main seal cover assembly sized to OEM dimensions with the appropriate sealing profile. A-Premium backs this part with a one-year unlimited-mileage workmanship guarantee, and their product documentation lists compatible models and reference numbers to aid in selection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete rear main seal cover assembly sized to factory specs\u003c\/li\u003e\n  \u003cli\u003eDocumented reference numbers for compatibility checks\u003c\/li\u003e\n  \u003cli\u003eA-Premium one-year unlimited-mileage workmanship guarantee\u003c\/li\u003e\n  \u003cli\u003eDesigned for professional and experienced DIY installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The A-Premium Engine Rear Main Seal Cover Kit is intended for mechanics, restoration shops and experienced DIYers servicing GM-family OHV V8 engines who need a direct-fit replacement cover. It's a practical choice when addressing rear crankshaft oil leaks on compatible Chevy, GMC, Cadillac and other listed vehicles, especially during engine overhauls or main seal replacements. Always confirm fitment with your vehicle's service manual and use proper installation tools and torque specs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this cover fit my 2005 Silverado 1500 with a 5.3L V8?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit lists compatibility with Silverado 1500 models covering 4.8–5.3L OHV V8 engines; confirm by matching your VIN or OEM reference number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include the rear main seal itself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The listing is a complete rear main seal cover assembly sized to accept the seal profile; confirm included components with the seller before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":55168846397783,"sku":"B082X9HMHG","price":69.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/a-premium-front-assembly_507089cc-746c-43a3-861f-eb893f193b2f.jpg?v=1790414801","url":"https:\/\/britishgarage.co.uk\/products\/a-premium-engine-rear-main-seal-cover-kit-for-ohv-v8-4-8-7-0l-direct-fit-integrated-sealing","provider":"British Garage","version":"1.0","type":"link"}