20464403 Volvo FH Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, ensuring the continuous circulation of coolant between the engine block and the radiator. By maintaining consistent flow, it prevents overheating and protects engine components from thermal stress during heavy-duty operation.

Vehicle compatibility and engine fitment

Specifically designed for Volvo FH series trucks, including models 400, 440, 480, 500, and 520, this part is also compatible with Volvo FH13 vehicles equipped with D13B engines. It provides a reliable replacement for OE-standard requirements in heavy commercial vehicle applications.

Installation and maintenance guidance

For optimal performance, technicians should inspect the pump during routine belt or cooling system maintenance. When replacing this unit, it is recommended to check the condition of the drive belts and seals to prevent future leaks or mechanical failure.

Troubleshooting and inspection

Monitoring for signs such as coolant leakage from the weep hole or unusual bearing noise can help prevent serious engine damage through early detection.

OE cross-reference

525.03.0021 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20464403.