{"product_id":"jbroparts-bs40640-rear-main-seal-kit-for-chevy-silverado-1500-gm-ls-engines","title":"JBROPARTS BS40640 Rear Main Seal Kit for Chevy Silverado 1500 \u0026 GM LS Engines","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe JBROPARTS BS40640 Rear Main Seal Kit is a comprehensive replacement solution designed for the GM LS engine family. It targets engines from 4.8L to 6.2L and is commonly used in popular trucks and SUVs such as Silverado 1500, Suburban, Tahoe, Sierra, and Yukon. This kit pairs a rear crankshaft seal with a precision metal gasket, creating a complete package that supports a proper seal at the rear of the engine.\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose the BS40640 kit\u003c\/h3\u003e\n\u003cp\u003eRather than sourcing individual parts, this kit consolidates essential sealing components into one package. The included items follow OE\/OEM references, aiding cross-reference when shopping for compatible replacements. The comprehensive content helps reduce guesswork during maintenance or routine engine service, and the metal gasket helps ensure a snug, long-lasting seal when installed with proper torque and alignment.\u003c\/p\u003e\n\n\u003ch3\u003eBroad vehicle coverage\u003c\/h3\u003e\n\u003cp\u003eDesigned for a wide array of GM vehicles, the BS40640 kit matches engines used across Chevrolet and GMC lines. Coverage includes Silverado 1500, Silverado Classic, Suburban 1500, Tahoe, Sierra 1500, and Yukon families, as well as models such as Canyon, Envoy, Savana, Express, Colorado, Monte Carlo, Camaro, Corvette, and more. Because engine fitment varies by model year and engine option, always verify the specific part numbers for your build.\u003c\/p\u003e\n\n\u003ch3\u003eEngine family compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGM LS engines: 4.8L, 5.3L, 6.0L, 6.2L (and variants used in multiple GM trucks and SUVs).\u003c\/li\u003e\n\u003cli\u003eRelevant vehicle targets include pickup trucks, full-size SUVs, and vans across Chevrolet and GMC lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eContents and fitment notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRear main crankshaft seal and metal gasket set designed to work with a broad spectrum of LS engine applications.\u003c\/li\u003e\n\u003cli\u003eIncludes OE-style part numbers for traceability: BS40640, plus several cross-reference numbers listed in the product spec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhen you upgrade to this kit, you’re choosing a single, coherent solution that aligns with the engine’s sealing needs. It’s presented as a practical upgrade for anyone performing rear main seal replacement, with a focus on compatibility and quality. While results can vary with each installation and vehicle history, many users find that using a dedicated kit streamlines maintenance and supports reliable sealing over time.\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: Which vehicles does the BS40640 kit fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits a wide range of GM vehicles with LS engines, including Silverado 1500, Suburban, Tahoe, Sierra, Yukon, and more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the BS40640 kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A rear main crankshaft seal and metal gasket set, plus OE-style part numbers for broad compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JBROPARTS","offers":[{"title":"Default Title","offer_id":42465021460565,"sku":"B0F6LCKB8K","price":27.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/jbroparts-bs40640-rear-main-seal-kit.jpg?v=1777995769","url":"https:\/\/plentytorque.co.uk\/products\/jbroparts-bs40640-rear-main-seal-kit-for-chevy-silverado-1500-gm-ls-engines","provider":"PlentyTorque","version":"1.0","type":"link"}