MAHLE HS4956B cylinder head gasket set for the 2004-2005 Chevrolet Impala V6 3.4L and other vehicles seals the cylinder heads to the engine block. Some catalogs list it as an engine cylinder head gasket set, which bundles the MAHLE cylinder head gasket with manifold gaskets and other seals.
White exhaust smoke, coolant loss with no visible leak or oil that looks milky can mean a head gasket is leaking. A warped cylinder head, a leaking radiator hose or a weak water pump can be behind overheating or coolant loss as well, so find the cause before you buy a gasket set.
It is listed for a wide range of Chevrolet, Buick, Oldsmobile and Pontiac models, including the 2004-2005 Chevrolet Monte Carlo V6 3.4L and the 2004-2005 Chevrolet Venture V6 3.4L.
Fit and size
Build and materials
One cylinder head gasket set with miscellaneous gaskets and seals. Cylinder head bolts are not included and replacing them is recommended, so plan on new bolts. This listing holds one set, and each vehicle takes one.
Interchange: HS 9071 PT-2
This part cross-references / interchanges with the following part numbers:
Does the MAHLE HS4956B fit a 2004-2005 Chevrolet Impala V6 3.4L?
Yes. MAHLE HS4956B is listed for the 2004-2005 Chevrolet Impala V6 3.4L. For another car, look in the "Vehicles it fits" section on this page for your year and engine.
Does this MAHLE cylinder head gasket set include head bolts?
No. MAHLE HS4956B comes without cylinder head bolts, and replacing them is recommended. It does contain miscellaneous gaskets and seals.
Is the MAHLE head gasket in this set graphite?
Yes. The cylinder head gasket is graphite, the exhaust manifold gaskets are multi-layered steel and the intake manifold gaskets are molded rubber.
Can milky oil mean a head gasket is leaking?
It can, since a leaking head gasket may let coolant reach the oil, but other faults can cause it too. A shop can pressure-test the cooling system to find out.
Is HS 9071 PT-2 the same as this MAHLE gasket set?
Yes. HS 9071 PT-2 is listed as an interchange number for the MAHLE HS4956B cylinder head gasket set.
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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.
