Staying Cool with OTR Water Pumps
Revised July, 2023
OTR brand dedicates itself to delivering the highest quality heavy duty parts on or off the road. Extensive customer research, independent testing, and product development go into each of our parts. This care ensures your drivers remain safe and your trucks on the road. TRUCKING IS OUR BUSINESS™
Steadfast Performance

When it comes to the efficient operation of class 6-8 semi trucks, maintaining optimal engine temperature is crucial. OTR water pumps play a vital role in the engine cooling system, providing reliable performance and preventing costly breakdowns. Discover why OTR water pumps are the best solution for your heavy duty aftermarket needs.
Water pumps are responsible for circulating coolant through the engine to regulate its temperature. By efficiently transferring heat away from the engine, these aftermarket parts prevent overheating and ensure optimal performance. OTR water pumps offer durability in demanding conditions.
Quality Engineering and Design
Durable Design
All water pumps are 100% new. Designed, assembled, tested, and inspected in the USA, these water pumps meet or exceed OEM specifications. OTR water pumps craft their robust construction from high-quality materials, ensuring both long-lasting performance and corrosion resistance.
OE specified bearings, unitized seals, high quality gaskets and accessories included with every pump to ensure proper fit, form, and function. Our OTR branded water pumps boast superior quality. Just see for yourself :
Design Specifications | OEM | OTR |
---|---|---|
Seal type | Silicon | Ceramic |
Engraved date / traceability code engraved | NO | On the hub |
Height: base surface to top hub | 2,170 | 2,170 |
Height: base surface to top impeller | 1,250 | 1,250 |
Two ruggedized support brackets | YES | YES |
Housing base surface machined | ||
Steel impeller with 6 vanes & spot welded plate | ||
Bearing case hardened |
Excellent Engineering
Engineered in an ISO9001:2015 certified facility, OTR water pump replacement parts undergo stringent quality control measures. This ensures their performance and durability. We subject water pumps to extended operating conditions, replicating their demanding operating environments. This testing ensures that the pumps can withstand high temperatures and extreme loads without compromising their performance.

Quality control measures also include inspections to validate the integrity of materials used. We verify the accuracy of dimensions, ensuring a proper fit for different engine models. All pumps have date and trace codes to identify production dates.

Testing | OEM | OTR |
---|---|---|
Leakage | ||
All pumps leak tested 100% | Passed | Passed |
Force (Checking Press Fit Condition) | ||
Bearing housing force test at 1,500 ft-lb | Passed | Passed |
Hub-shaft force test at 1,800 ft-lb | ||
Impeller shaft torque test at 200 in-lb |
Maximize Your Uptime
Regular inspection and maintenance of your water pump can help identify any signs of wear or damage. This allows for timely repairs or replacements. Here are a few maintenance tips:
- Coolant Level: Check the coolant level regularly and top it up as needed. Low coolant levels can lead to overheating and potentially damage the water pump.
- Belt tension: Inspect the belt that drives the water pump for proper tension. A loose or worn-out belt can cause slippage. This results in inadequate coolant circulation.
- Leakage: Look for any signs of coolant leakage around the water pump housing, gaskets, or connections. Addressing leaks promptly prevents coolant loss and potential engine damage.
- Periodically flush the cooling system to remove contaminants or buildup that can affect the water pump's performance. Follow the manufacturer's recommendations for the appropriate coolant flush intervals.
- Regular inspections: During routine engine inspections, pay attention to the water pump's condition. Look for any signs of corrosion, bearing wear, or unusual noise. If you detect any issues, we recommend consulting a qualified technician for further evaluation and necessary repairs.
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* The forgoing is provided for informational purposes only. Please consult your local FleetPride Heavy Duty Experts to verify the suitability of a part for the intended application.