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Engine Water Pump - ACDelco (252-257)

ACDelco part # 252-257

ACDelcoMPN252-257
Sale Price$48.22
Description : An ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Product Details

Description

An ACDelco Professional, premium aftermarket Engine Water Pump circulates coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. The gaskets, seals, and O-rings packaged with this Professional, premium aftermarket water pump help guarantee that all necessary parts are available for trouble-free installation. ACDelco Professional Water Pumps are a high quality replacement for many vehicles on the road today. This premium aftermarket replacement engine water pump is manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Part Number (MPN)
252-257
Brand
SKU
252-257
UPC / GTIN
021625153667 / 00021625153667
Condition
New
Other Names
12494006
Brand
ACDelco Gold
FAQ - Answer 1
Yes. ACDelco Professional Water Pump Kits and Water Pumps are for both GM and non-GM vehicle applications.
FAQ - Answer 2
Yes. ACDelco Professional Water Pump Kits and Water Pumps are packaged with the gaskets, seals, and O-rings needed for installation.
FAQ - Answer 3
No. Water pumps can vary greatly in size and appearance depending on the vehicle they are designed for.
FAQ - Answer 4
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.
FAQ - Answer 5
Yes. 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 6
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.
FAQ - Question 1
Can I use ACDelco Professional Water Pump Kits and Water Pumps on my non-GM vehicle?
FAQ - Question 2
Do ACDelco Professional Water Pump Kits and Water Pumps come with installation components?
FAQ - Question 3
Do all water pumps look the same?
FAQ - Question 4
Can a malfunctioning water pump harm my engine?
FAQ - Question 5
Does the water pump affect the temperature inside the passenger compartment of my vehicle?
FAQ - Question 6
Does the water pump work when my vehicle is turned off?
Fan Clutch Included
No
Features & Benefits - Bullet 1
All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
Features & Benefits - Bullet 2
Thoroughly tested for reliable, leak-free performance
Features & Benefits - Bullet 3
Coated seals support seal longevity and durability
Features & Benefits - Bullet 4
Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
Features & Benefits - Bullet 5
High-quality bearings are permanently sealed and lubricated for greater durability and long life
Features & Benefits - Bullet 6
Come with premium, high-quality replacement components needed for trouble-free and accurate installation
Features & Benefits - Bullet 7
Uniform wall sections and smooth coolant-flow cavities for efficient operation
Features & Benefits - Bullet 8
Cast-iron or aluminum design, depending on vehicle application
Good Maintenance Practices - Section 1 - Bullet 1
Clean all excess dirt and debris from the water pump housing.
Good Maintenance Practices - Section 1 - Bullet 2
Run your vehicle to increase engine temperature, and ensure the system is pressurized.
Good Maintenance Practices - Section 1 - Bullet 3
Inspect 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 1 - Bullet 4
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.
Good Maintenance Practices - Section 1 - Header
Tips for Water Pump Inspection:
Good Maintenance Practices - Section 2 - Bullet 1
Determine the root cause of failure, particularly if the water pump failed prematurely.
Good Maintenance Practices - Section 2 - Bullet 10
After installation, pressure-test the system for leaks and check for sufficient fan blade clearance between the blade and radiator shroud.
Good Maintenance Practices - Section 2 - Bullet 11
Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
Good Maintenance Practices - Section 2 - Bullet 2
Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
Good Maintenance Practices - Section 2 - Bullet 3
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.
Good Maintenance Practices - Section 2 - Bullet 4
Do not use any non-approved flush agents, and replace the coolant according to manufacturer's specifications.
Good Maintenance Practices - Section 2 - Bullet 5
Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
Good Maintenance Practices - Section 2 - Bullet 6
Never strike the water pump shaft, since this will damage the new water pump.
Good Maintenance Practices - Section 2 - Bullet 7
Torque all bolts according to the manufacturer's specifications, and adjust belts to proper tension (if applicable) to manufacturer's specifications.
Good Maintenance Practices - Section 2 - Bullet 8
Use sealant tabs only if recommended. Some sealant tabs or similar compounds may restrict coolant flow through the passages of some cooling systems.
Good Maintenance Practices - Section 2 - Bullet 9
With the new water pump installed, turn the hub by hand and check for rotation.
Good Maintenance Practices - Section 2 - Header
Tips for Water Pump Servicing & Installation:
Good Maintenance Practices - Section 3 - Bullet 1
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.
Good Maintenance Practices - Section 3 - Bullet 2
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.
Good Maintenance Practices - Section 3 - Bullet 3
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.
Good Maintenance Practices - Section 3 - Bullet 4
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.
Good Maintenance Practices - Section 3 - Bullet 5
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.
Good Maintenance Practices - Section 3 - Bullet 6
Inspect 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 3 - Header
Tips to Help Prevent Water Pump Failure:
Height (in)
6.1
Housing Material
Steel
Hub Height
2.295<br />58.166
Hub Hole Quantity
3
Impeller Material
Steel
Impeller Rotation
Reverse
Impeller Vane Quantity
6
Includes Back Housing
No
Informational Chart 1
PL25_PL26_IC_WaterPumpComposition.jpg
Informational Chart 2
PL25_PL26_IC_CoolingSystemOperation.jpg
Installation Warnings
No
Length (in)
6.4
Mounting Hardware Included
No
Mounting Hole Quantity
6
Outlet Quantity
0
PADB ID 7287
8
Programming Required
No
Pulley Included
No
Signs of Wear & Troubleshooting - Section 1 - Bullet 4
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 pump failure, and should be addressed.
Thermostat And Housing Included
No
Water Pump Drive Type
Timing belt
Weight (lb)
3.2
Width (in)
5.1

YearMakeModelBody & TrimEngine & Transmission
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission

BrandEquivalent Part Numbers

Rows per page:

0-0 of 0

BrandEquivalent Part Numbers
AAP
511787, 513052
ACDelco
251472, 252258
ASC
WP-604, WP-844
Airtex
AW4054, AW5054
Airtex Water Pumps
AW5054, AW5055
Altrom Group
1529286, 1529287
AutoZone
AWP844

Shipping Policy

At Restauco Parts, we ship to the 48 contiguous U.S. states and Puerto Rico. Every order ships from our supplier's authorized warehouses located in the United States. At this time we do not ship to Alaska, Hawaii, the U.S. Virgin Islands, Guam or other U.S. territories.

When will my order be processed?
Orders are processed Monday through Friday. You will receive a tracking number by email once your order has shipped. Weekend orders will be processed the next business day.

How long will it take to receive my order?
Delivery time depends on the carrier and your location. Oversized shipments may require additional time — you will be contacted prior to shipping for approval.

Which carriers do you use?
We ship via UPS, FedEx, and USPS depending on the size, weight, and destination of your order. The most appropriate carrier will be selected at the time of fulfillment. Carrier substitutions may be made to reduce shipping costs to the customer.

Do you ship internationally?
We do not ship internationally. We ship within the 48 contiguous U.S. states and Puerto Rico.

VIN Requirement
We strive for 100% accuracy on all orders. To help us achieve this goal, we ask that you include your car's VIN when placing your order. This is a courtesy service to help avoid wrong part orders and returns. We are not responsible for 100% guaranteed fitment.

Backordered or Discontinued Parts
In the unlikely event that a part has been placed on backorder or discontinued, we will do our best to find it for you as quickly as possible.

Questions?
If you have any questions about your shipment, please contact us at [email protected]

Check out our Shipping Policy for more details.

Return Policy

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You'll also need the receipt or proof of purchase. To start a return, you can contact us at [email protected] Please note that returns can be made to several branches, contact us to provide thhe correct information.

If your return is accepted, the refund will be processed between 3-4 business day once we receive the item. Items sent back to us without first requesting a return will not be accepted. NOTE: We don't make refund for shipping cost. You can always contact us for any return question at [email protected].

Damages and Issues

Please inspect your order upon receipt and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Refunds

We will notify you once we've received and inspected your return, and let you know if the refund was approved or not. If approved, you'll be automatically refunded on your original payment method within 10 business days (excluding shipping cost). Please remember it can take some time for your bank or credit card company to process and post the refund too. If more than 15 business days have passed since we’ve approved your return, please contact us at [email protected].


Check out our Return Policy for more details.

ACDelco

Shop ACDelco auto parts at Restauco Parts. ACDelco is the only aftermarket parts brand backed by General Motors, offering both Original Equipment and premium aftermarket lines. Our ACDelco inventory includes Gold and Silver product lines covering brake pads, spark plugs, oil filters, batteries, sensors, ignition coils, and more. Every ACDelco part is designed to meet or exceed OEM specifications, ensuring reliable performance for GM vehicles and most other makes and models. Trust the brand that has been delivering automotive excellence for over 100 years.

Browse the Full ACDelco Parts Catalog

Restauco.com

Restauco Parts is your trusted online source for genuine OEM and premium aftermarket auto parts. We carry top brands including ACDelco, GM Genuine Parts, Motorcraft, Dorman, Akebono, Wagner, and Bilstein. Whether you need brake pads, suspension parts, ignition coils, fuel pumps, or engine components, we offer competitive prices and fast shipping on thousands of parts for all major makes and models. Shop with confidence — every part we sell meets or exceeds OEM quality standards.