Product Description
BTR LS Rear Main Crank Cover Seal
Replaces GM 89060436 | Fits Gen III & Gen IV LS Engines
The BTR LS Rear Main Crank Cover Seal is a premium replacement option for all Gen III and Gen IV LS engines, offering a precise fit and leak-free performance. Manufactured to OEM standards by Brian Tooley Racing, this seal is engineered to withstand the heat, pressure, and oil exposure common in both stock and high-performance LS applications. Whether you're completing an LS swap, refreshing a high-mileage engine, or building a boosted setup, this seal delivers long-term reliability you can count on.
Key Features
- Direct OEM Replacement: Replaces GM 89060436 with a high-quality seal engineered to meet or exceed factory performance standards.
- Wide LS Compatibility: Fits all Gen III and Gen IV LS engines, making it suitable for stock rebuilds, swap projects, and performance builds alike.
- Premium Materials: Constructed from heat-resistant and oil-resistant materials to ensure long-lasting crankcase sealing under demanding conditions.
- Performance Ready: Designed to handle high horsepower, boost, and race-level stresses without compromising sealing integrity.
- Tool Compatible: Works seamlessly with the Michigan Motorsports Rear Main Seal Installation Tool (Item D1100) for easy, accurate installation.
Key Fitments
- Engines: LS1, LS2, LS3, LS4, LS6, L99, LSA, L92, L9H, L94, L76, L77, LY6, L96, LFA, LZ1, LY5, LMG, LMF, LH6, LC9, LY2, L20, L33, LQ4, LQ9, LR4, LM7, L59, LH8, LH9 — all Gen III & Gen IV LS engines.
- Platforms: Compatible with all GM vehicles equipped with Gen III/IV LS engines, as well as LS swap projects in cars, trucks, and performance applications.
- Notes: For best results and proper alignment, pair with Michigan Motorsports Rear Main Seal Installation Tool (Item D1100). Replaces GM part number 89060436.
