Genuine GM Rear Oil Seal Cover Gasket, also known as a Rear Main Seal Cover Gasket. Fits 1997+ GM LS-Series V8 Engines, including LS1, LS2, LS3, LS6, LS7, LS9. Rear Main Seal sold separately (click here.) Like GM part #12639249
Formerly 12574293
Genuine GM Rear Oil Seal Cover Gasket, also known as a Rear Main Seal Cover Gasket. Fits 1997+ GM LS-Series V8 Engines, including LS1, LS2, LS3, LS6, LS7, LS9. Rear Main Seal sold separately (click here.) Like GM part #12639249
Formerly 12574293