20464403 Volvo FM Compatible 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 between the engine and the radiator. By maintaining consistent fluid flow, it prevents engine overheating and ensures stable thermal management during heavy-duty operation. This component is manufactured using high-strength components designed to withstand rigorous thermal cycles.

Compatible Volvo FM models

This part is compatible with a wide range of Volvo FM series vehicles, including the FM II, FM III, and various standard FM models such as the FM 300 through FM 540. It is specifically designed to fit several configurations including the FM 420 LNG, FM 460 LNG, and other high-output variants. This ensures reliable performance across diverse fleet applications.

Installation and maintenance

To ensure proper fitment and prevent leaks or bearing play, it is recommended to inspect the pump during routine belt service. Replacing the pump alongside the timing or alternator belt is a best practice for workshop technicians to prevent unexpected downtime. Always check for coolant leakage from the weep hole during routine inspections.

Troubleshooting guidance

Consult your authorized distributor to verify exact fitment for your specific engine configuration.

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.