21468471 Volvo FMX D11B 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 block and the radiator. By maintaining steady flow, it prevents overheating and ensures the thermal stability of the engine during heavy-duty operation in construction or transport environments.

Compatible Volvo vehicles and engines

This component is specifically engineered for Volvo FMX models, including the 480, 440, and 400 variants equipped with D11B engines. It is also compatible with various Volvo FM series models such as the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430.

Installation and maintenance

For professional installation, technicians should inspect the drive belt and housing seals during replacement. Ensuring correct alignment and using high-strength components helps prevent common failure indicators like coolant leaks or bearing noise. We recommend checking all connections to ensure the pump operates efficiently within the existing cooling circuit.

Selection guidance

When selecting a replacement, always verify engine compatibility to avoid flange or diameter mismatches. Maintaining a consistent cooling flow is vital for preventing long-term engine wear in heavy commercial vehicles.

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 21468471.