{"product_id":"genuine-gm-ls-rear-engine-cover-with-rear-main-seal-gasket-bolts-12639250","title":"Genuine GM LS Rear Engine Cover with Rear Main Seal, Gasket \u0026 Bolts - 12639250","description":"\u003cp\u003eGenuine GM rear engine cover (rear main seal housing) for Gen III\/IV LS engines — GM part number 12639250. Comes as a complete service assembly with the rear main seal pre-installed, rear cover gasket fitted, and mounting bolts included, so it's a clean one-step fit.\u003c\/p\u003e\u003cp\u003eThis is the updated GM casting that supersedes the earlier covers known for porosity and cracking — a common cause of oil leaks often misdiagnosed as rear main seal failure. If you're doing a rear main seal on an LS, replacing the cover at the same time is the proper fix.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGM part number: 12639250 (supersedes 12556105, 12559287, 12572013, 12572014, 12587100, 12598301, 12606502, 12614813, 12615666, 12633579)\u003c\/li\u003e\n\u003cli\u003eFits Gen III\/IV LS V8s: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L (LS1, LS2, LS3 and truck variants)\u003c\/li\u003e\n\u003cli\u003eSuits Holden VT–VF Commodore V8 applications (LS1, L76, L77, L98, LS2, LS3)\u003c\/li\u003e\n\u003cli\u003eIncludes: cover, rear main seal, gasket, and bolts\u003c\/li\u003e\n\u003cli\u003eBrand new in GM Genuine Parts box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GM Genuine Parts","offers":[{"title":"Default Title","offer_id":48760085119130,"sku":"12639250","price":159.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/6595\/3434\/files\/61D4D4E5-168D-4FBC-AE27-1B079F1B63C4.jpg?v=1784338833","url":"https:\/\/northcomautomotive.com.au\/products\/genuine-gm-ls-rear-engine-cover-with-rear-main-seal-gasket-bolts-12639250","provider":"NORTHCOM AUTOMOTIVE ","version":"1.0","type":"link"}