20538820 Volvo FM13 D13B Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. By maintaining consistent flow, it prevents overheating and ensures the engine operates at its ideal thermal state, which is essential for preventing serious component damage during high-load operations.

Vehicle and engine compatibility

This component is specifically engineered for Volvo FM series vehicles, including models such as the FM 400, FM 360, FM 340, FM 380, FM 440, FM 480, FM 300, FM 390, and FM 430. It is also compatible with Volvo FM13 engines featuring the D13B designation.

Installation and maintenance

For optimal performance and to avoid potential leaks or bearing noise, technicians should inspect this part during routine belt service. Ensuring proper installation and checking for any signs of coolant leakage from the weep hole will help maintain long-term engine health.

Troubleshooting and selection

Always verify the engine code and existing part specifications to ensure a perfect fit for your specific heavy commercial vehicle application.

OE cross-reference

525.03.0020 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20538820.