GM GENUINE PARTS 25205820 Engine Coolant Pump 195491692657

( Brand: Gm Genuine Parts ), ( Manufacturer Part Number: 25205820 ), ( Part Type: Engine Pump ), ( Included Components: Engine Water Pump ), ( Model Name: Gm Original Equipment ), ( Automotive Fit Type: Vehicle Specific Fit ), ( Compatible With Vehicle Type: Car, Truck ), ( Part Type Id: 195491692657 ), ( Exterior Finish: Machined ), ( Material: Metal ), ( Package Dimensions Lxwxh: 15.12x9.1x9.0 Inches ), ( Weight: 7.8 Pounds )

Review GM GENUINE PARTS Engine Coolant Pump

The **GM 25205820 Engine Coolant Pump** is a precision-engineered component designed to maintain optimal thermal efficiency within General Motors high-performance and fuel-efficient vehicle engines. This high-quality coolant pump is integral to the cooling system, ensuring consistent circulation of engine coolant to prevent overheating, extend engine life, and enhance overall performance. Constructed with durable materials, including a robust impeller and a sealed mechanical seal assembly, this pump is engineered to withstand the demanding conditions of modern automotive environments, delivering reliable operation under varying thermal loads. The GM 25205820 features a direct-drive design, which eliminates the need for additional belts or pulleys, reducing friction and improving energy efficiency. Its compact yet robust housing is crafted to minimize vibration and noise, contributing to a smoother driving experience while maintaining precise coolant flow. Whether installed in a performance-oriented vehicle or a daily driver, this coolant pump is built to meet or exceed OEM specifications, ensuring long-term reliability and compatibility with GM s advanced cooling system architectures. Proper installation and regular maintenance, such as checking for leaks and ensuring proper coolant levels, will further maximize its performance and longevity.

**Pros and Cons of buying a GM 25205820 Engine Coolant Pump**

The GM 25205820 is a common replacement coolant pump used in various General Motors vehicles, particularly those with the 3.5L V6 (e.g., 2007-2013 Chevrolet Impala, GMC Acadia, and some Buick models). Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Direct OEM Fitment**

The GM 25205820 is an original equipment (OEM) part, meaning it is designed specifically for the intended applications. This ensures compatibility with the vehicle s cooling system, including the thermostat housing, drive belt, and mounting points. Using an OEM part reduces the risk of improper fitment or functionality issues that can arise with aftermarket alternatives.

2. **Reliability and Durability**

GM s manufacturing standards generally ensure that OEM components are built to last, especially when sourced from reputable dealerships or authorized distributors. The coolant pump is designed to handle the thermal and mechanical stresses of the engine s cooling system, reducing the likelihood of premature failure.

3. **Warranty Coverage**

Purchasing the part directly from GM or an authorized dealer often includes a warranty, typically ranging from 12 to 60 months, depending on the source. This provides peace of mind in case the pump fails shortly after installation. Aftermarket parts may not offer the same level of warranty protection.

4. **Compatibility with GM Service Procedures**

The part is designed to work seamlessly with GM s recommended installation and maintenance procedures. This includes proper sealing, alignment, and electrical connections, which are critical for the pump s performance and longevity.

5. **Easier to Source Replacement Parts**

If the pump fails again in the future, sourcing an identical OEM replacement is straightforward. Dealerships and online retailers like RockAuto, AutoZone, or GM s official parts store will have the part in stock, whereas aftermarket alternatives may require additional research to find compatible replacements.

6. **Minimized Risk of Cooling System Issues**

A faulty coolant pump can lead to overheating, reduced engine efficiency, or even catastrophic engine damage. An OEM pump reduces the risk of such issues, as it is engineered to meet GM s engineering specifications.

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### **Cons**

1. **Higher Cost**

OEM parts are generally more expensive than aftermarket alternatives. The GM 25205820 can cost significantly more than a comparable aftermarket pump, which may be a deterrent for budget-conscious buyers. Prices can range from $150 to $300 or more, depending on the source and whether labor is included.

2. **Limited Availability Outside Dealerships**

While the part is widely available, it may not be as easily accessible as aftermarket options, especially in rural areas or through non-dealer retailers. Some online marketplaces may carry it, but shipping times could be longer compared to aftermarket parts.

3. **Potential for Counterfeit or Low-Quality OEM Parts**

Purchasing from unauthorized sellers (e.g., third-party online marketplaces without verification) increases the risk of receiving a counterfeit or substandard OEM part. These fakes may not meet GM s quality standards, leading to premature failure or compatibility issues. Always buy from trusted sources like dealerships or reputable online retailers.

4. **Installation Complexity**

Replacing a coolant pump often requires draining the cooling system, removing the drive belt, and potentially the thermostat housing. While not overly complex, it is a labor-intensive job that may require professional installation, especially for those unfamiliar with engine cooling systems. DIYers may need to invest time in research or pay for labor.

5. **Potential for Overkill in Some Cases**

If the pump failure is isolated to a specific component (e.g., the impeller or bearing), replacing the entire pump may be unnecessary. In such cases, an aftermarket pump with a known good impeller or bearing could be a more cost-effective solution. However, diagnosing the exact issue requires mechanical expertise.

6. **Environmental and Disposal Considerations**

Coolant pumps contain coolant, which is hazardous if mishandled. Proper disposal of the old coolant and the pump itself may require taking it to a recycling center or an auto parts store that accepts hazardous waste. This adds an extra step to the replacement process.

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### **Conclusion**

The GM 25205820 engine coolant pump is a reliable, high-quality OEM replacement that offers peace of mind due to its direct fitment, warranty coverage, and compatibility with GM s service standards. Its primary advantages lie in its durability, ease of sourcing replacements, and reduced risk of cooling system failures. However, the higher cost and potential complexity of installation may be drawbacks for some buyers.

For most vehicle owners, especially those who prioritize longevity and warranty protection, the GM 25205820 is a strong choice. If budget is a concern, aftermarket alternatives from reputable brands (e.g., ACDelco, Gates, or Mopar) may offer comparable performance at a lower cost, provided they meet the same specifications and come with a solid warranty.

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### **Recommendation**

- You value OEM quality and warranty coverage.

- You are replacing the pump in a vehicle where OEM fitment is critical (e.g., a high-mileage or performance-oriented engine).

- You plan to perform the installation yourself and are comfortable with the process, or you have access to a trusted mechanic.

- You want to minimize the risk of future compatibility issues with replacement parts.

- You are working with a tight budget and can find a high-quality aftermarket pump (e.g., ACDelco GM 96455691) with a strong warranty.

- You are confident in diagnosing the exact issue (e.g., a failed impeller rather than the entire pump) and can source a targeted replacement.

- You are replacing the pump in a vehicle where aftermarket parts have a proven track record of reliability.

Always verify the part number and compatibility with your specific vehicle model and year before purchasing. If in doubt, consult a mechanic or GM service advisor to ensure the correct part is selected. Proper installation and maintenance (e.g., flushing the cooling system) will further extend the life of the coolant pump.

Details:

Heat-treated impeller shafts supported by high-quality ball/roller bearings for smooth, reliable operation. GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. Coated seals with a stainless steel spring for durability. GM regularly updates production and service part designs to integrate new materials technologies.

Uniform wall sections and smooth coolant-flow cavities for efficient operation. Some GM Genuine Parts may have formerly appeared as AcDelco Original Equipment OE. GM Genuine Parts 25205820 Engine Coolant Pump: Thoroughly tested for leak-resistant performance.

part #: 25205820 prices

• $125.73-$226.10

specifications refrigerhva:

• brand: Gm Genuine Parts
• mpn: 25205820
• part type: Engine Pump
• included components: Engine Water Pump
• model name: Gm Original Equipment
• automotive fit type: Vehicle Specific Fit
• compatible with vehicle type: Car, Truck
• part type id: 195491692657
• exterior finish: Machined
• material: Metal
• package dimensions lxwxh: 15.12x9.1x9.0 Inches
• weight: 7.8 Pounds

payments refrigerhva:

• other
• wallet: Apple-pay
• credit card: Mastercard

shipping refrigerhva:

• service: Economy
• cost: $0.00
• class: Economy
• transit: 3-8 Days
• type: Fixed

seller refrigerhva:

• city: Multiple Locations
• # reviews: 1237
• rating: 99.0%

returns refrigerhva:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted
• method: Money back

offer refrigerhva:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: March 25, 2026
• availability: In Stock

general refrigerhva:

• condition: New Open box
• HVAC Refrigeration > HVAC Refrigeration Components > Evaporators

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