US Motor Works US63-2 water pump for the 2001-2005 Chevrolet Silverado 2500 HD V8 6.6L and other vehicles circulates coolant to carry heat out of the engine. Also called an engine water pump, it keeps the cooling system flowing.
A coolant leak near the pump, a whine or grinding noise from the bearing, or a temperature gauge that climbs can all mean the pump is wearing out. Before you replace the water pump, rule out a stuck thermostat, a leaking hose or a failing radiator fan, because overheating can come from any of them.
This water pump is a direct-fit replacement for the 2001-2005 Chevrolet Silverado 3500 V8 6.6L and the 2001-2005 GMC Sierra 2500 HD V8 6.6L, along with the truck named at the top. For a different vehicle, look up its year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One water pump with its installation sealing devices; the engine takes a single pump.
Product information is for general reference and may contain errors. See our Disclaimer.
Is this the right GMC Sierra 2500 HD water pump for a 2001-2005 truck with the V8 6.6L?
Yes. US Motor Works US63-2 fits the 2001-2005 GMC Sierra 2500 HD V8 6.6L, and the "Vehicles it fits" section covers the other vehicles it suits.
Will the US63-2 work as a Chevrolet Silverado 2500 HD water pump on a 2001-2005 truck with the V8 6.6L?
Yes. This pump is matched to the 2001-2005 Chevrolet Silverado 2500 HD V8 6.6L, and that engine takes one water pump.
Does the US Motor Works US63-2 come with installation sealing devices?
Yes. US Motor Works US63-2 comes with its installation sealing devices, and this listing is one water pump.
Is the impeller on this water pump metal?
Yes. This water pump has a metal impeller, and its bearing is case hardened.
Can a worn bearing make this water pump noisy?
Yes. A whine or grinding sound from the pump area can mean a worn bearing, and a shop can test it. This pump uses a case hardened bearing.
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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.
