CHEVROLET PERFORMANCE 12665076 Chevrolet Performance 12665076 Rear Main Seal for GM Gen V LT-Series Engines

Help maintain dependable engine sealing with the Chevrolet Performance 12665076 Rear Main Seal. Designed for GM Gen V LT-Series engines, this one-piece rear main seal provides a purpose-built sealing solution at the back of the crankshaft, helping retain engine oil and protect against leaks in this critical area. Its application-specific design supports proper fitment for compatible LT-Series engine configurations.
The seal is manufactured from durable rubber to provide flexibility, resilience, and reliable contact with the crankshaft sealing surface. The one-piece construction simplifies replacement compared with multi-piece designs and helps promote consistent sealing when installed according to the applicable service procedures. As a genuine Chevrolet Performance component, part number 12665076 is suited for engine repairs, rebuilds, and performance applications requiring a replacement rear main seal for a compatible Gen V LT-Series engine.
Before installation, verify vehicle and engine compatibility using the Chevrolet Performance application information and compare the original component with the replacement seal. Proper installation is essential for sealing performance; inspect the crankshaft sealing surface, clean the installation area, and follow the recommended service instructions. This rear main seal is supplied as an individual replacement component and is intended for use where a compatible GM Gen V LT-Series rear main seal is required.

Features:

• Application: Rear main seal designed for compatible GM Gen V LT-Series engines

• Construction: One-piece design supports straightforward replacement and consistent sealing

• Material: Durable rubber construction provides flexible contact at the crankshaft sealing surface

• Brand: Chevrolet Performance component for specified GM engine applications

• Part Number: 12665076 for identification and fitment verification