Product Description
Michigan Motorsports Rear Cover Gasket and Rear Main Crank Seal Kit
Fits 4.8L–6.2L LS Engines | Replaces GM 89060436 & 12633578 | Complete Rear Seal Kit
The Michigan Motorsports Rear Cover Gasket and Rear Main Crank Seal Kit is a high-quality solution for sealing the back of your LS-based V8 engine. Designed to replace GM part numbers 89060436 and 12633578, this kit includes both a premium rear main crankshaft seal and a durable rear cover gasket to eliminate oil leaks and ensure a factory-quality fit. Perfect for rebuilds, maintenance, or performance engine projects, this kit provides the reliability and precision required to maintain optimal engine performance and oil retention.
Key Features
- Complete Sealing Solution: Includes both the rear engine cover gasket and the rear main crankshaft seal for comprehensive protection against oil leaks.
- OEM Replacement: Direct replacement for GM part numbers 89060436 and 12633578, ensuring perfect fit and function on all LS-based engines.
- High-Quality Materials: Manufactured with premium, oil-resistant materials that maintain sealing integrity under high pressure and temperature conditions.
- Prevents Oil Leaks: Restores factory sealing between the crankshaft, block, and rear cover for long-lasting performance and reliability.
- Ideal for Rebuilds and Repairs: A must-have for LS engine maintenance, rebuilds, and swap projects requiring dependable rear-end sealing.
Key Fitments
- Engine Compatibility: Fits all GM LS-based engines including LS1, LS2, LS3, LS6, LQ4, LQ9, L76, L77, L92, L94, LY6, L96, and LMG with displacements ranging from 4.8L to 6.2L.
- Vehicle Applications: Suitable for all GM car, truck, and SUV models equipped with Gen III and Gen IV LS engines from 1997–2013.
- Fitment Type: Designed for engines with factory-style rear engine covers and standard rear main seal housings.
Kit Includes
- (1) Replacement Rear Main Crank Seal
- (1) High-Quality LS Rear Engine Cover Gasket
Note: Always inspect crankshaft and cover surfaces before installation to ensure proper sealing. This Michigan Motorsports kit delivers OEM-quality reliability and is perfect for both daily drivers and high-performance LS engine builds.
