Description:
Get the ACDelco 251-721 Engine Auxiliary Water Pump for your vehicle. Buy now and secure your purchase online!
An ACDelco GM Original Equipment Engine Auxiliary Water Pump is used in some vehicles to pump engine coolant during certain operating conditions. While your engine's main water pump is mechanically driven and stops when the engine does, an auxiliary water pump is electric and able to circulate coolant after the engine is shut off, keeping coolant flowing to where it needs to go. These original equipment auxiliary water pumps have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Features and Benefits:
- GM-recommended replacement part for your GM vehicle's original factory component
- Manufactured to GM OE specification for fit, form, and function
- Offering the quality, reliability, and durability of GM OE
- Thoroughly tested for reliable, leak-free performance
Specifications:
Inlet Pipe Diameter:
18.15 mm
Outlet Pipe Diameter:
18.75 mm
Features and Benefits:
- – A stain around the weep hole is acceptable. However, if a weep occurs with the engine running and the coolant system pressurized, then the water pump should be replaced.
- – Clean all excess dirt and debris from the water pump housing.
- – Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
- – Run your vehicle to increase engine temperature, and ensure the system is pressurized.
- Tips for Water Pump Inspection:
Specifications:
