Direct OEM-Style Replacement: Designed to replace GM 89060436 and 12633578 with a precise sealing profile for LS1, LS2, LS3, LQ4, LQ9, L76, L77, LY6, L96, and many 4.8–6.2L LS engine platforms.
Complete Seal & Gasket Kit: Includes both the rear engine cover gasket and rear main crankshaft seal, providing all required components for restoring proper rear block sealing during maintenance or rebuilds.
Durable, Oil-Resistant Materials: Manufactured from premium sealing materials engineered to resist engine oil, heat cycling, and long-term wear, ensuring dependable leak prevention around the rear cover and crankshaft.
Ideal for Reseals & Rebuilds: Suitable for high-mileage repairs, LS swap preparation, or full engine rebuilds requiring accurate and reliable replacement components for rear cover and crank interface sealing.
Michigan Motorsports Quality: Each component is selected for consistent fitment, sealing integrity, and long-term reliability, backed by Michigan Motorsports' commitment to OE-style service components.
وصف
The Michigan Motorsports LS Rear Cover Gasket & Rear Main Crank Seal Kit (MM-12639249 KIT) provides a complete solution for sealing the rear engine cover and crankshaft interface on a wide range of LS engines, including 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L configurations. Designed to replace GM 89060436 and 12633578, this kit includes a high-quality rear cover gasket and a durable rear main crank seal engineered for reliable, leak-free operation. Built from oil- and heat-resistant materials, each component maintains proper sealing integrity during engine operation and is ideal for rebuilds, reseals, or preventative maintenance. Whether servicing an LS-powered truck, car, or swap build, this kit offers the essential components needed to restore dependable OE-style rear cover and crankshaft sealing.