Sumyola rear main seal gasket cover for LS engines with precise fit and durable construction.
Sumyola rear main seal bolts kit ensuring secure installation and corrosion resistance.
Sumyola LS engine compatibility image showing broad vehicle coverage for easy checks.
Sumyola packaging image showing included parts and warranty information.
Sumyola rear main seal gasket cover for LS engines with precise fit and durable construction.
Sumyola rear main seal bolts kit ensuring secure installation and corrosion resistance.
Sumyola LS engine compatibility image showing broad vehicle coverage for easy checks.
Sumyola packaging image showing included parts and warranty information.

Sumyola Rear Main Seal Gasket Cover & Bolts for GM LS Engines | 635-518 12633579 12639250

Overview Meet the Sumyola rear main seal gasket cover and bolts kit, a purpose-built upgrade for GM...
Vendor: Sumyola
Availability: In stock
£60.46
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Sumyola rear main seal gasket cover for LS engines with precise fit and durable construction.

Sumyola Rear Main Seal Gasket Cover & Bolts for GM LS Engines | 635-518 12633579 12639250

£60.46
Sumyola rear main seal gasket cover for LS engines with precise fit and durable construction.
Sumyola rear main seal bolts kit ensuring secure installation and corrosion resistance.
Sumyola LS engine compatibility image showing broad vehicle coverage for easy checks.
Sumyola packaging image showing included parts and warranty information.

Sumyola Rear Main Seal Gasket Cover & Bolts for GM LS Engines | 635-518 12633579 12639250

£60.46
Description
Description
x

Overview

Meet 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.

Why Sumyola stands out

Manufactured 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.

Key features and benefits

  • Replaces part numbers 635-518, 12633579, 12639250, ensuring reliable cross-reference for common GM LS builds.
  • Broad 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.
  • Factory coverage statement emphasizes the product’s tested design and the long-standing production experience behind it.
  • One-year warranty supported by an independent QC team that inspects and tests each part; professional engineers provide remote installation support if needed.
  • VIN check service available within one business day to verify fit; non-applicable parts are refunded promptly.

Designed 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.

What you can expect during purchase

  • Clear cross-reference and broad vehicle coverage helps with quick matching during shopping.
  • Quality assurance from a certified facility, plus ongoing support from a dedicated engineering team.

FAQ

Q: Which vehicles are compatible with the Sumyola rear main seal kit?

A: This kit fits a broad GM LS range listed in the notes, including Silverado, Suburban, Camaro, Tahoe, Yukon, and Cadillac Escalade.

Q: What warranty and support is provided?

A: 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.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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