Description:
ACDelco GM Original Equipment Engine Water Pump O-Rings are used in some applications instead of paper or composite gaskets to seal the water pump housing. The interface between components will have a machined groove to accept the O-ring. The O-ring is slightly compressed when assembled to provide a liquid-tight seal, keeping engine coolant in and air and dirt out. These original equipment O-rings 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
- Made from heat and chemical-resistant materials
- Manufactured to GM OE specification for fit, form, and function
- Offering the quality, reliability, and durability of GM OE
Specifications:
Maximum Diameter:
3.75 in.
Maximum Diameter:
95.2 mm
Minimum Diameter:
3.54 in.
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.
- – After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
- – Clean all excess dirt and debris from the water pump housing.
- – Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
- – Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
- – Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications.
- – Flush the cooling system completely, using power flush equipment or thermal cycling the system with clean water three times. The most effective method of system flushing is to use a coolant exchanger, following the manufacturer's operating instructions.
- – Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
- – Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
- – Never strike the water pump shaft, since this will damage the new water pump.
- – Run your vehicle to increase engine temperature, and ensure the system is pressurized.
- – Torque all bolts according to the manufacturer's specifications and adjust belts to proper tension (if applicable) to manufacturer's specifications.
- – Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
- – With the new pump installed, turn the hub by hand and check for rotation.
- Before purchasing and installing an engine water pump o-ring, make sure it is the correct fit for your vehicle.
- Tips for Water Pump Inspection:
- Tips for Water Pump Servicing & Installation:
Specifications:
