| ACDELCO 252500 Specifications |
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| Fan Clutch Included | No | | Height (IN) | 5.9 | | Housing Material | Aluminum | | Hub Height (IN) | 2.601 | | Hub Height (MM) | 66.04 | | Impeller Material | Grey Iron | | Impeller Rotation | Reverse | | 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) | 9.1 | | Mounting Hardware Included | No | | Pulley Included | No | | Pulley Outside Diameter (IN) | 2.755 | | Thermostat And Housing Included | No | | Water Pump Drive Type | Timing Belt | | Weight (lb) | 4.5 | | Width (IN) | 6.4 |
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| Gold / Professional; Does Not Include Mount Bolts |
An ACDelco Gold / Professional 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 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.
Features & Benefits
- All Makes water pumps fit GM vehicles as well as a wide range of non-GM vehicles
- 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 greater 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
- Cast-iron or aluminum design, depending on vehicle application
Every belt driven water pump has a weep hole that might leak a little in the beginning. Some seepage from the weep hole is normal during the break-in period (about 10 minutes), and does not indicate a defect.
 Cooling System Maintenance | Tips & Tools Without regular maintenance, cooling system components will degrade and fail prematurely, which can lead to costly engine damage. Protect your engine with simple preventative maintenance:
- Completely drain and flush the system using Cooling System Flush prior to installation. Flushing the system is critical to prevent system contamination and failure.
- Consider replacing the Radiator Hoses (and Hose Clamps), Thermostat and Radiator Cap as part of routine preventative maintenance. System contamination can cause these parts to degrade and fail over time, which can lead to severe engine damage from overheating.
- Refill radiator with fresh Coolant / Antifreeze according to the volume and formula specified in your Owner's Manual. Inspect levels and condition every year.
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
| GM ORIGINAL EQUIPMENT |
| GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
| ACDELCO GOLD (PROFESSIONAL) |
| ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
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| OEM / Interchange Numbers: 12494249 |
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