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- Water Pump
Part TypeAuxiliary Water Pump
BrandACDELCO
Package Height5.1
Package Width6.1
Package Length6.4
Weight2.9 PG
Housing MaterialAluminum
Mounting Hole Quantity4
New Or RemanufacturedNew
Outlet Quantity1
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
Hub Height2.98
Water Pump Drive TypeTiming belt
Includes Back HousingNo
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:
Thermostat And Housing IncludedNo
Product DescriptionACDelco 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Pulley IncludedNo
Installation WarningsNo
Fan Clutch IncludedNo
Width (In)6.2
Hub Hole Thread Diameter (Mm)6
Impeller RotationStandard
Impeller MaterialSteel
Hub Hole Quantity3
Informational Chart 1PL25_PL26_IC_WaterPumpComposition.jpg
Informational Chart 2PL25_PL26_IC_CoolingSystemOperation.jpg
Length (In)9.4
Good Maintenance Practices - Section 4 - HeaderTips to Help Prevent Water Pump Failure:
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
Programming RequiredNo
Casting Number18-1637
Good Maintenance Practices - Section 2 - Bullet 1Clean all excess dirt and debris from the water pump housing
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 engine water pump kits include but are not limited to:
Faq - Answer 7No. 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 6Yes. 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.
Faq - Answer 5Yes. 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 4No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
Faq - Answer 3Yes. ACDelco Gold Water Pump Kits and Water Pumps are packaged with the gaskets, seals, and O-rings needed for installation.
Faq - Answer 2ACDelco Gold Water Pump Kits and Water Pumps are for both GM and many non-GM vehicle applications.
Impeller Vane Quantity7
Faq - Answer 1Yes. Always consult the Vehicle Owner's manual or an expert technician before making any repairs or adjustments
Features &#38; Benefits - Bullet 6Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Features &#38; Benefits - Bullet 2Coated seals support seal longevity and durability
Features &#38; Benefits - Bullet 3Cast-iron or aluminum design, depending on vehicle application
Features &#38; Benefits - Bullet 4Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features &#38; Benefits - Bullet 5Premium aftermarket replacement part
Hub Height (In)1.406
Features &#38; Benefits - Bullet 1Thoroughly tested for reliable, leak-resistant performance
Good Maintenance Practices - Section 4 - Bullet 7Regularly inspect engine water pump seal for signs of damage or wear and replace them if signs of damage are found.
Good Maintenance Practices - Section 4 - Bullet 6Inspect the thermostat and radiator cap. Examine your thermostat and radiator cap and replace if they show signs of sticking or leaking.
Good Maintenance Practices - Section 4 - Bullet 5Ensure 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.
Good Maintenance Practices - Section 4 - Bullet 4Inspect 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.
Good Maintenance Practices - Section 4 - Bullet 3Never overtighten your drive belts. Belts that are too tight may cause an overload on pump bearings, greatly reducing the life of the water pump.
Good Maintenance Practices - Section 4 - Bullet 2Utilize 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.
Good Maintenance Practices - Section 1 - HeaderBefore purchasing and installing an engine water pump kit, make sure it is the correct fit for your vehicle.
Good Maintenance Practices - Section 4 - Bullet 1Flush 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.
Mounting Hardware IncludedNo
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
Faq - Question 7Does the water pump work when my vehicle is turned off?
Height (In)5.7
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 affect the temperature inside the passenger compartment of my vehicle?
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 5Can a malfunctioning water pump harm my engine?
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
Hub Height (Mm)75.69
Part FitmentDirect Fit
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 4Do all water pumps look the same?
Faq - Question 3Do ACDelco Gold Water Pump Kits and Water Pumps come with installation components?
Weight (Lb)2.9
Faq - Question 2Can I use ACDelco Gold Water Pump Kits and Water Pumps on my non-GM vehicle?
Faq - Question 1Should the Vehicle Owner's Manual or an expert technician be consulted before making any repairs or adjustments?
Vendor Part Number252-821
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
