21814040 Volvo FMX D13C Cooling System Water Pump

What does a water pump do?

The water pump serves as a critical component within the engine cooling system, acting as a centrifugal pump that continuously circulates coolant between the engine block and the radiator. This constant flow is essential to prevent overheating and ensure the thermal stability of the engine during heavy-duty operations.

Compatible Volvo engines and models

This specific model is designed for Volvo FMX series trucks, particularly those utilizing the D13C engine. It is also compatible with various Volvo FM models, including the FM 460, FM 380, FM 420, FM 500, FM 400, FM 440, FM 360, and FM 480 variants. This ensures reliable performance across diverse heavy commercial vehicle applications.

Maintenance and inspection guidance

For optimal service life, technicians should inspect the pump during routine cooling system maintenance. Common indicators for replacement include coolant leakage from the weep hole or unusual noise from the bearing assembly. It is recommended to check the belt tension and inspect the impeller integrity during installation to ensure seamless integration with the existing cooling circuit.

System reliability and troubleshooting

Maintaining a consistent coolant flow is vital for preventing engine wear and ensuring long-term reliability in construction machinery and tractor units.

OE cross-reference

525.03.0008 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21814040.