ACDelco Gold Engine Water Pump

About this product

ACDelco Gold (Professional) Engine Water Pump Kits are the high quality alternative to Original Equipment (OE) parts. They contain an ACDelco Professional Water Pump and the components needed to install it. This premium aftermarket water pump will circulate coolant through your vehicle's engine cooling system and help maintain proper engine temperature and performance. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Thoroughly tested for reliable, leak-resistant performance
Coated seals support seal longevity and durability
Cast-iron or aluminum design, depending on vehicle application
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

ClassificationGold

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Tips to Help Prevent Water Pump Failure:

Clean all excess dirt and debris from the water pump housing
Run your vehicle to increase engine temperature, and ensure the system is pressurized
Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole
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 and reinstall the coolant recovery reservoir before flushing the cooling system
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
Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications
Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component
Never strike the water pump shaft, since this will damage the new water pump
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
After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud
Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir
Flush your cooling system whenever the water pump or other system components are replaced. This will help prevent contamination from entering the system, which may result in repeated failure.
Utilize quality coolant when refilling your cooling system with the recommended 50/50 coolant/water mix. Distilled water should be used, as hard tap water can leave mineral deposits in the cooling system and reduce coolant flow or result in corrosion and seal damage. Contaminated or depleted coolant can also result in corrosion and seal damage, and lead to pump failure. Take care to select the correct coolant for your vehicle by consulting the vehicle manufacturer's service information.
Never overtighten your drive belts. Belts that are too tight may cause an overload on pump bearings, greatly reducing the life of the water pump.
Inspect the fan blade. If damage is not detected, bent blades, loose rivets, and cracks may result in premature bearing failure. If damage is found, do not try to repair the fan-the part should be replaced.
Ensure that your engine fan pulley (or clutch, if used) is seated properly on the pump's shaft. If the fan wobbles during rotation, vibration resulting in premature bearing wear may occur. Also check the fan clutch for wear and replace as necessary.
Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap and replace if they show signs of sticking or leaking.
Regularly inspect engine water pump seal for signs of damage or wear and replace them if signs of damage are found.

Signs of wear for engine water pump kits include but are not limited to:

Leaking 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.
Engine 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.
Rumbling 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.
Visible 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.

Model	Trim	Year(s)
Avalanche 1500	Base, LS, North Face, Z71, LT, Z66, On Road Edition, WBH	2002, 2003, 2004, 2005, 2006
Express 1500	LS, LT, Base	2003, 2004, 2005, 2006
Express 2500	LS, Base, LT	2003, 2004, 2005, 2006
Express 3500	Base, LS, LT	2003, 2004, 2005, 2006
SSR	Base	2003, 2004, 2005, 2006
Silverado 1500	LS, LT, WT, Base, SS, Hybrid, Z71 Off-Road	1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Silverado 1500 HD	LS, LT, Base	2001, 2002, 2003, 2004, 2005, 2006
Silverado 2500	LS, LT, Base, WT	1999, 2000, 2001, 2002, 2003, 2004
Silverado 2500 HD	Base, LS, LT, WT	2001, 2002, 2003, 2004, 2005, 2006
Silverado 3500	LT, Base, LS, WT	2001, 2002, 2003, 2004, 2005, 2006
Suburban 1500	Base, LT, LS, Z71, LTZ	2000, 2001, 2002, 2003, 2004, 2005, 2006
Suburban 2500	Base, LS, LT	2000, 2001, 2002, 2003, 2004, 2005, 2006
Tahoe	LT, Z71, LS, Base	2000, 2001, 2002, 2003, 2004, 2005, 2006
Trailblazer	LT, LS, SS	2006
Trailblazer EXT	LS, LT, North Face	2003, 2004, 2005, 2006

About this product

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Thoroughly tested for reliable, leak-resistant performance
Coated seals support seal longevity and durability
Cast-iron or aluminum design, depending on vehicle application
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

ClassificationGold

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Tips to Help Prevent Water Pump Failure:

Clean all excess dirt and debris from the water pump housing
Run your vehicle to increase engine temperature, and ensure the system is pressurized
Inspect for leakage at the water pump outlet housing or the rear cover gasket, and leakage at the water pump vent or weep hole
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 and reinstall the coolant recovery reservoir before flushing the cooling system
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
Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications
Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component
Never strike the water pump shaft, since this will damage the new water pump
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
After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud
Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir
Flush your cooling system whenever the water pump or other system components are replaced. This will help prevent contamination from entering the system, which may result in repeated failure.
Utilize quality coolant when refilling your cooling system with the recommended 50/50 coolant/water mix. Distilled water should be used, as hard tap water can leave mineral deposits in the cooling system and reduce coolant flow or result in corrosion and seal damage. Contaminated or depleted coolant can also result in corrosion and seal damage, and lead to pump failure. Take care to select the correct coolant for your vehicle by consulting the vehicle manufacturer's service information.
Never overtighten your drive belts. Belts that are too tight may cause an overload on pump bearings, greatly reducing the life of the water pump.
Inspect the fan blade. If damage is not detected, bent blades, loose rivets, and cracks may result in premature bearing failure. If damage is found, do not try to repair the fan-the part should be replaced.
Ensure that your engine fan pulley (or clutch, if used) is seated properly on the pump's shaft. If the fan wobbles during rotation, vibration resulting in premature bearing wear may occur. Also check the fan clutch for wear and replace as necessary.
Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap and replace if they show signs of sticking or leaking.
Regularly inspect engine water pump seal for signs of damage or wear and replace them if signs of damage are found.

Signs of wear for engine water pump kits include but are not limited to:

Leaking 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.
Engine 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.
Rumbling 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.
Visible 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.

Model	Trim	Year(s)
Avalanche 1500	Base, LS, North Face, Z71, LT, Z66, On Road Edition, WBH	2002, 2003, 2004, 2005, 2006
Express 1500	LS, LT, Base	2003, 2004, 2005, 2006
Express 2500	LS, Base, LT	2003, 2004, 2005, 2006
Express 3500	Base, LS, LT	2003, 2004, 2005, 2006
SSR	Base	2003, 2004, 2005, 2006
Silverado 1500	LS, LT, WT, Base, SS, Hybrid, Z71 Off-Road	1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Silverado 1500 HD	LS, LT, Base	2001, 2002, 2003, 2004, 2005, 2006
Silverado 2500	LS, LT, Base, WT	1999, 2000, 2001, 2002, 2003, 2004
Silverado 2500 HD	Base, LS, LT, WT	2001, 2002, 2003, 2004, 2005, 2006
Silverado 3500	LT, Base, LS, WT	2001, 2002, 2003, 2004, 2005, 2006
Suburban 1500	Base, LT, LS, Z71, LTZ	2000, 2001, 2002, 2003, 2004, 2005, 2006
Suburban 2500	Base, LS, LT	2000, 2001, 2002, 2003, 2004, 2005, 2006
Tahoe	LT, Z71, LS, Base	2000, 2001, 2002, 2003, 2004, 2005, 2006
Trailblazer	LT, LS, SS	2006
Trailblazer EXT	LS, LT, North Face	2003, 2004, 2005, 2006

Frequently Asked Questions

Yes. Always consult the Vehicle Owner's manual or an expert technician before making any repairs or adjustments

ACDelco Gold Water Pump Kits and Water Pumps are for both GM and many non-GM vehicle applications.

Yes. ACDelco Gold Water Pump Kits and Water Pumps are packaged with the gaskets, seals, and O-rings needed for installation.

No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.

Yes. 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.

Yes. As part of regular cooling system operation, the water pump sends hot coolant to the heater core of your vehicle, 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.

No. 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.

About this product

Product details

Specifications

Warranty

Maintenance

Tips to Help Prevent Water Pump Failure:

Signs of wear for engine water pump kits include but are not limited to:

Fits these vehicles

About this product

Product details

Specifications

Warranty

Maintenance

Tips to Help Prevent Water Pump Failure:

Signs of wear for engine water pump kits include but are not limited to:

Fits these vehicles

Frequently Asked Questions

Should the Vehicle Owner's Manual or an expert technician be consulted before making any repairs or adjustments?

Can I use ACDelco Gold Water Pump Kits and Water Pumps on my non-GM vehicle?

Do ACDelco Gold Water Pump Kits and Water Pumps come with installation components?

Do all water pumps look the same?

Can a malfunctioning water pump harm my engine?

Does the water pump affect the temperature inside the passenger compartment of my vehicle?

Does the water pump work when my vehicle is turned off?

ACDelco Gold Engine Water Pump

ACDelco Gold Engine Water Pump