ACDelco® 25205820 - Professional™ Engine Coolant Water Pump

8 reviews|Item # mpn5026126720
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    $175.06 + Free Shipping
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    Vehicle Fitment

    Buick
    Chevy
    GMC

    Specifications

    Features & Benefits - Bullet 1
    Thoroughly tested for leak-resistant performance
    Features & Benefits - Bullet 2
    Uniform wall sections and smooth coolant-flow cavities for efficient operation
    Features & Benefits - Bullet 3
    Coated seals with a stainless steel spring for durability
    Features & Benefits - Bullet 4
    Heat-treated impeller shafts supported by high-quality ball/roller bearings for smooth, reliable operation
    Features & Benefits - Bullet 5
    Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
    Features & Benefits - Bullet 6
    GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
    Features & Benefits - Bullet 7
    GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
    Features & Benefits - Bullet 8
    GM regularly updates production and service part designs to integrate new materials and technologies
    Signs of Wear & Troubleshooting - Section 1 - Header
    Signs of wear for engine water pump seals include but are not limited to:
    Signs of Wear & Troubleshooting - Section 1 - Bullet 1
    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.
    Signs of Wear & Troubleshooting - Section 1 - Bullet 2
    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.
    Signs of Wear & Troubleshooting - Section 1 - Bullet 3
    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.
    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 water pump failure and should be addressed.
    Good Maintenance Practices - Section 1 - Header
    Tips for Water Pump Inspection:
    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 3 - Header
    Tips for Water Pump Servicing & Installation:
    Good Maintenance Practices - Section 3 - Bullet 1
    Clean and reinstall the coolant recovery reservoir before flushing the cooling system.
    Good Maintenance Practices - Section 3 - Bullet 2
    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 3 - Bullet 3
    Do not use any non-approved flush agents and replace the coolant according to manufacturer's specifications.
    Good Maintenance Practices - Section 3 - Bullet 4
    Clean all sealing surfaces, and make sure all old gasket material is removed before installing your replacement component.
    Good Maintenance Practices - Section 3 - Bullet 5
    Never strike the water pump shaft, since this will damage the new water pump.
    Good Maintenance Practices - Section 3 - Bullet 6
    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 3 - Bullet 7
    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 3 - Bullet 8
    With the new pump installed, turn the hub by hand and check for rotation.
    Good Maintenance Practices - Section 3 - Bullet 9
    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 3 - Bullet 10
    Inspect related components in the cooling system, including your fan blades, fan clutch, engine mounts, radiator, belts and hoses, and reservoir.
    Product Description
    GM Genuine Parts Engine Water Pumps are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These pumps circulate coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
    Mounting Hardware Included
    Yes
    Pulley Included
    Yes
    Pulley Groove Quantity
    5
    Fan Clutch Included
    No
    Mounting Hole Quantity
    4
    Housing Material
    Aluminum
    Hub Height
    88 mm
    Hub Height
    3.46 in
    Impeller Material
    Steel
    Impeller Rotation
    Standard
    Includes Back Housing
    Yes
    Installation Warnings
    No
    Water Pump Drive Type
    Serpentine Belt
    Outlet Quantity
    2
    Outside Pulley Diameter
    113 mm
    Outside Pulley Diameter
    4.45 in
    Impeller Vane Quantity
    6
    Thermostat And Housing Included
    Yes

    Features

    • Thoroughly tested for reliable, leak-free performance
    • Coated seals support seal longevity and durability
    • Heat-treated shaft assemblies provide superior strength and durability over non-treated assemblies
    • High-quality bearings are permanently sealed and lubricated for excellent durability and long life
    • Come with premium, high-quality replacement components needed for trouble-free and accurate installation
    • Uniform wall sections and smooth coolant-flow cavities for efficient operation

    Product Details

    Professional™ Engine Coolant Water Pump by ACDelco®. An ACDelco Professional™ Engine Water Pump Kit contains an ACDelco Professional™ Water Pump and the components needed to install it. This Professional™, premium aftermarket water pump will circulate coolant through your vehicle’s radiator and engine system, and help maintain proper engine temperature and performance.

    Installation

    ACDelco® - GM Water Pump InstallationACDelco® - GM Water Pump Installation

    The cooling system of your automobile is vital to your engine's overall health and longevity. That is why it’s critical to replace leaking, malfunctioning, cracked or otherwise damaged cooling parts and components in time. Without proper cooling, your engine can crack and seize up, which can lead to engine damage. To save your energy, time and money, get the superior OEM parts they offer for your vehicle. Each product is made from high quality materials to maintain proper cooling of your engine and prevent overheating.

    ACDelco is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by ACDelco are made with expert care and created by professionals to meet all your requirements. The company does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, ACDelco is the name you can trust.

    ACDelco® - Cooling System ManualACDelco® - WarrantyAdditional InformationFAQ
    Brand:
    ACDelco
    Part Number:
    25205820
    UPC:
    197293947928

    Reviews

    (8)
    Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
    /5
    1-8 of 8 Reviews
    5 of 5
    Great Product, Cost, Shipping, Installation
    I'm not a mechanic though I'm handy and have plenty of tools. After watching Atlantic British videos on YouTube I decided this is something I can do to stay in budget. After power washing oil off the area I spent the first day removing the fan clutch assembly which required a large narrow wrench (I chose to use a large crescent wrench) and removed the old water pump. Next I cleaned the area again with the power washer. Next day I installed the new pump with gasket noting which bolts came out of which position, then removed the protective plastic thread collar on water pump and reinstalled the old fan clutch assembly. The only frustration came trying to keep the gasket in place while positioning the new pump. Some gaskets come with a tacky side to stick to the pump or engine side and that makes it easier to keep it lined up. Future suggestion perhaps.
    Posted by Noel / April 12, 20242000 Land Rover Discovery
    3 of 5
    Water Pump
    I received water pump in a too large box, not packed to keep boxes from moving around. I have not installed water pump due to weather changed & too cold & wet.
    ACDelco® - Professional™ Engine Coolant Water Pump
    Posted by Todd (Toledo, OH) / November 15, 20191973 Buick Riviera
    4 of 5
    Quality Pump
    Arrived on time. Pretty easy to install on 08 Xterra with no issues.
    Posted by Terrance (Oklahoma City, OK) / April 06, 20182008 Nissan Xterra
    5 of 5
    Loved My Service.
    The part was in a padded box tightly secured and everything was perfect. It was a new part with all the seals included. It was very easy to install and is working like a champ. Now all my male friends come to me to get their parts online for the great prices and great quality parts.
    ACDelco® - Professional™ Engine Coolant Water Pump
    Posted by Pauline (New Orleans, LA) / October 17, 20172003 Kia Rio
    5 of 5
    Perfect Fit
    On time and fit perfect. Easy ordering.
    Posted by Rodney (Jonesboro, GA) / September 23, 20171994 Chevy S-10 Pickup
    5 of 5
    Purchased For My Boyfriend
    This was a replacement part as the original started to leak after 100k miles. It was fairly east to install ourselves and had no surprises that came along with it (wrong part or just didn't fit right).
    Posted by Theresa (Central Square, NY) / April 13, 20172002 Chevy Tahoe
    5 of 5
    Perfect Fit for My Silverado
    Purchased the recommended acdelco pump. No surprises during install, perfect fit. shipped fast. probably gonna order from them again.
    Posted by Brandon (Lincoln, NE) / February 10, 20252018 Chevy Silverado 1500
    5 of 5
    Water Pump
    Nice water pump and cost much less than local parts store! Works great!
    Posted by Lloyd (Atascadero, CA) / October 21, 2017

    Questions and Answers

    (0)
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!