Seal combustion pressure and keep coolant and oil in their own passages with the APEX Automobile Parts Inc Cylinder Head Gasket, part number AHG359R, a right-side head gasket that seals the joint between the cylinder head and the engine block. It fits many vehicles with the V6-3.8L engine, among them the 2000-2005 Chevrolet Impala, 2005-2009 Buick LaCrosse and 1995-2002 Chevrolet Camaro. It is a direct-fit replacement for the listed applications, and the Buyer's Guide tab has the full list.
- Position: right side of the engine.
- Engine: V6-3.8L on every listed application.
- Quantity per application: 1. The listed applications use one of this gasket.
A head gasket sits between the cylinder head and the block. It seals the combustion chambers and keeps the coolant and oil passages that pass through that joint separate. The V6-3.8L has two cylinder heads, and this gasket is for the right-side head.
Signs this part may need replacing include coolant loss with no visible leak, white exhaust smoke, overheating, milky oil, or bubbles in the coolant reservoir. These symptoms can have other causes, so diagnose the problem before replacing parts. During installation, make sure the head and block mating surfaces are clean and flat. Consult the vehicle service information for the torque sequence, the correct head bolts and whether the original bolts may be reused.
