Seal the joint between the cylinder head and the engine block with the APEX Automobile Parts Inc Cylinder Head Gasket, part number AHG371. It fits many vehicles, among them the 1999-2001 Chevrolet Silverado 1500 4.8L / 5.3L, the 1999-2001 GMC Sierra 1500 4.8L / 5.3L and the 1999-2000 Chevrolet Silverado 2500 5.3L. See the Buyer's Guide tab for the full list.
A head gasket sits between the head and the block. It is designed to contain combustion pressure and to keep the coolant and oil passages that run between the two separated. If a leaking gasket is the cause of coolant loss or overheating, this engine cylinder head gasket replaces it.
Signs a head gasket may need replacing include coolant loss with no visible leak, overheating, white exhaust smoke, coolant in the oil, and low compression. Diagnose the cause before replacing the gasket. Consult the vehicle service information for surface preparation, the torque procedure, the correct head bolts, and whether the original bolts may be reused.
Is AHG371 the right cylinder head gasket for a 1999-2001 Chevrolet Silverado 1500 4.8L / 5.3L?
It is listed for the 1999-2001 Chevrolet Silverado 1500 with the V8-4.8L or V8-5.3L engine. Check your exact vehicle in the Buyer's Guide tab before ordering.
Does it also fit the 1999-2001 GMC Sierra 1500 4.8L / 5.3L?
Yes. It is listed for the 1999-2001 GMC Sierra 1500 with the V8-4.8L or V8-5.3L engine, and the Buyer's Guide tab shows the other listed vehicles.
What does a cylinder head gasket do?
It seals the joint between the cylinder head and the engine block. It contains combustion pressure and keeps the coolant and oil passages between the two separated.
How many head gaskets do the listed engines use?
The Buyer's Guide lists a quantity of two for the listed V8 applications, one per cylinder head. Order the quantity shown for your vehicle.
What are signs a head gasket may be failing?
Common signs include coolant loss with no visible leak, overheating, white exhaust smoke, milky oil, and low compression. Diagnose the cause first, because other faults can produce similar symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
