20921917 Volvo FM FM11 D11A Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for circulating coolant to prevent overheating. Built with high-strength components, it ensures consistent thermal regulation for heavy commercial vehicle engines, maintaining stable operating temperatures even under demanding workloads.

Compatible Volvo models and engines

This part is specifically designed to fit Volvo FM series trucks, including the FM 330, FM 450, FM 410, and FM 370 models. It is also compatible with Volvo FM11 engines equipped with the D11A engine code. For exact fitment, verifying the engine code is recommended.

Installation and maintenance

To ensure longevity, technicians should inspect the pump and its connections during routine cooling system maintenance. Proper installation prevents leaks and ensures the impeller functions correctly within the coolant circuit. Regular checks of the drive belt tension and coolant levels are advised to prevent premature wear.

Troubleshooting cooling issues

If a loss of coolant or rising engine temperatures occurs, inspecting this component is a vital step in troubleshooting the cooling circuit.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20921917.