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- Water Pump O-Ring
Part TypeWater Pump O-Ring
BrandACDELCO
Package Height0.3
Package Width3.6
Package Length3.6
Weight0.01 PG
Good Maintenance Practices - Section 3 - Bullet 9After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Good Maintenance Practices - Section 3 - Bullet 8With the new pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - Section 3 - HeaderTips for Water Pump Servicing & Installation:
Minimum Diameter (Mm)70.00
Product DescriptionACDelco 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
ColorBlack
Width (In)3.6
Thickness3
Length (In)3.6
Maximum Diameter (Mm)76.00
Part CategoryReplacement Parts
Good Maintenance Practices - Section 2 - Bullet 3Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole.
Good Maintenance Practices - Section 2 - Bullet 4A 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.
Thickness (Mm)3.00
Programming RequiredNo
Good Maintenance Practices - Section 2 - Bullet 1Clean all excess dirt and debris from the water pump housing.
Minimum Diameter2.76
Good Maintenance Practices - Section 2 - Bullet 2Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - Section 2 - HeaderTips for Water Pump Inspection:
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 1Leaking Coolant - Puddles of coolant under your vehicle, a constant drip or stream of coolant from the water pump's weep hole, or a constantly empty or low coolant reservoir are all signs of potential water pump wear, and may be caused by cracks in the pump, or seal or gasket failures.
Signs Of Wear &#38; Troubleshooting - Section 1 - HeaderSigns of wear for heater water pumps include but are not limited to:
Faq - Answer 6No. Your vehicle's water pump keeps coolant moving as long as the engine is running and stops when the engine is turned off. If you want to be able to circulate coolant for a short time after the engine has been turned off, an auxiliary electric water pump is needed.
Faq - Answer 5Yes. As part of regular cooling system operation, the water pump sends hot coolant to the heater core of your engine, which transfers heat into the passenger cabin of your vehicle. If this hot coolant is unable to reach the heater core, then this heat transfer cannot occur, and your passenger compartment remains colder than you want.
Faq - Answer 4Yes. The water pump is responsible for moving coolant through your vehicle's cooling system, keeping the heat generated by your engine at acceptable levels, and helping prevent overheating. A malfunctioning water pump can cause your engine to overheat, which may result in severe and costly engine damage.
Faq - Answer 3No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
Faq - Answer 2Yes. ACDelco GM Original Equipment parts are equivalent to your GM vehicle's original factory components.
Faq - Answer 1Yes. Always consult the Vehicle Owner’s manual or an expert technician before making any repairs or adjustments
Features &#38; Benefits - Bullet 2GM-recommended replacement part for your GM vehicle's original factory component
Features &#38; Benefits - Bullet 3Offering the quality, reliability, and durability of GM OE
Features &#38; Benefits - Bullet 4Manufactured to GM OE specification for fit, form, and function
Features &#38; Benefits - Bullet 1Made from heat and chemical-resistant materials
Good Maintenance Practices - Section 1 - HeaderBefore purchasing and installing an engine water pump o-ring, make sure it is the correct fit for your vehicle.
Maximum Diameter76
MaterialRubber
Good Maintenance Practices - Section 3 - Bullet 5Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - Section 3 - Bullet 4Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Height (In)0.3
Good Maintenance Practices - Section 3 - Bullet 7Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
Faq - Question 6Does the water pump work when my vehicle is turned off?
Good Maintenance Practices - Section 3 - Bullet 6Torque all bolts according to the manufacturer's specifications and adjust belts to proper tension (if applicable) to manufacturer's specifications.
Faq - Question 5Does the water pump affect the temperature inside the passenger compartment of my vehicle?
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 2Engine Overheating - If your vehicle's engine overheats, it may not be receiving the required coolant flow. Make sure that your vehicle's cooling system contains the proper level of coolant.
Good Maintenance Practices - Section 3 - Bullet 1Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 3Rumbling Noise in the Pump - A rumbling, squeaking, or screeching noise near the front of your vehicle when you start it may indicate a malfunctioning water pump bearing.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 4Visible Component Wear - Worn seals, corrosion, cavitation/pitting of pump components, or a loose or wobbly pump shaft are all signs of wear that may lead to water pump failure and should be addressed.
Good Maintenance Practices - Section 3 - Bullet 3Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - Section 3 - Bullet 2Flush 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.
Part FitmentDirect Fit
Rim ShapeRound
Good Maintenance Practices - Section 3 - Bullet 10Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Faq - Question 4Can a malfunctioning water pump harm my engine?
Faq - Question 3Do all water pumps look the same?
Weight (Lb)0.1
Grade TypeOE
Faq - Question 2Will ACDelco GM Original Equipment Water Pumps, Kits and other components match the quality of my GM vehicle's original factory parts?
Faq - Question 1Should the Vehicle Owner’s manual or an expert technician be consulted before making any repairs or adjustments?
Vendor Part Number251-625
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
