{"product_id":"sumyola-rear-main-seal-gasket-cover-bolts-for-gm-ls-engines-635-518-12633579-12639250","title":"Sumyola Rear Main Seal Gasket Cover \u0026 Bolts for GM LS Engines | 635-518 12633579 12639250","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the Sumyola rear main seal gasket cover and bolts kit, a purpose-built upgrade for GM LS engine platforms. This kit is designed to replace part numbers 635-518, 12633579, and 12639250, helping maintain a clean sealing surface and a secure bolt pattern during service. Real-world use highlights include straightforward installation and a reliable seal that supports smooth engine operation.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Sumyola stands out\u003c\/h2\u003e\n\u003cp\u003eManufactured at a facility with a large production footprint and decades of auto parts experience, Sumyola products combine durability with precise fit. The factory operates across a sizable 50,000 sqm site and holds IATF16949:2016 certification, reflecting a commitment to quality control and consistency across batches.\u003c\/p\u003e\n\n\u003ch3\u003eKey features and benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces part numbers 635-518, 12633579, 12639250, ensuring reliable cross-reference for common GM LS builds.\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility: suitable for numerous GM vehicles including Avalanche, Camaro, Caprice, Colorado, Corvette, Express, Silverado (and HD), Suburban, Tahoe, Trailblazer, Canyon, Envoy, Savana, Sierra, Yukon, Escalade, CTS, and more.\u003c\/li\u003e\n  \u003cli\u003eFactory coverage statement emphasizes the product’s tested design and the long-standing production experience behind it.\u003c\/li\u003e\n  \u003cli\u003eOne-year warranty supported by an independent QC team that inspects and tests each part; professional engineers provide remote installation support if needed.\u003c\/li\u003e\n  \u003cli\u003eVIN check service available within one business day to verify fit; non-applicable parts are refunded promptly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDesigned for real-world use, the kit pairs a robust gasket cover with a precise bolt set, offering a practical solution for DIYers and professional technicians alike. The messaging here focuses on possibilities and practical outcomes, rather than guarantees, so you can weigh the options with confidence as you plan your maintenance or repair project.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you can expect during purchase\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eClear cross-reference and broad vehicle coverage helps with quick matching during shopping.\u003c\/li\u003e\n  \u003cli\u003eQuality assurance from a certified facility, plus ongoing support from a dedicated engineering team.\u003c\/li\u003e\n\u003c\/ul\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 are compatible with the Sumyola rear main seal kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This kit fits a broad GM LS range listed in the notes, including Silverado, Suburban, Camaro, Tahoe, Yukon, and Cadillac Escalade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty and support is provided?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: One-year warranty with independent QC checks and remote support; VIN verification is available within 1 business day, with refunds if the part is not applicable.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sumyola","offers":[{"title":"Default Title","offer_id":42470098174037,"sku":"B0D5B5L929","price":60.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/sumyola-rear-main-seal-gasket-cover.jpg?v=1778118059","url":"https:\/\/plentytorque.co.uk\/products\/sumyola-rear-main-seal-gasket-cover-bolts-for-gm-ls-engines-635-518-12633579-12639250","provider":"PlentyTorque","version":"1.0","type":"link"}