This Chevrolet Performance rear cover gasket seals the rear main cover to the block on GM LS-Series engines. The rubber and steel design provides a durable rear seal.
Specifications:
- Rear cover gasket
- Rubber and steel construction
- Fits GM LS-Series
- Sold individually (each)
- Part number: 12639249
Applications:
- GM Gen III and Gen IV LS-Series V8 engines
FAQ
Which engines does gasket 12639249 fit?
It seals the rear main cover on GM Gen III and Gen IV LS-Series engines.
What is it made from?
It uses a rubber and steel construction.
Where is this gasket used?
It seals the rear cover at the back of the block, around the rear main area.

