20744939 Volvo FH Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, ensuring that coolant circulates continuously between the engine and the radiator. By maintaining steady flow, it helps the engine hold its ideal operating temperature even under high loads and demanding ambient conditions. High-strength components are utilized to withstand the constant thermal stress and vibration inherent in heavy commercial vehicle operation.

Compatible Volvo models and engines

This specific model is designed for compatibility with Volvo FH models, including variants 400, 440, 480, 500, and 520, as well as Volvo FH16 engines equipped with the D16K engine code. It functions as a robust replacement for OE-standard parts to prevent overheating and potential engine damage caused by coolant stagnation.

Installation and maintenance guidance

When performing maintenance, technicians should inspect the pump for signs of leakage from the weep hole or unusual bearing noise. It is recommended to check the condition of the drive belt during installation and consider renewing the pump together with timing belt services to ensure long-term system reliability.

Troubleshooting cooling system issues

To ensure a precise fitment, always verify the engine code and chassis number before installation. Proper maintenance of the cooling system helps prevent impeller wear or bearing play that could lead to sudden engine overheating.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20744939.