21814040 Volvo FMX II Cooling System Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, facilitating the continuous circulation of coolant between the engine block and the radiator. By maintaining stable thermal management, it prevents overheating and ensures the longevity of heavy-duty engine components under demanding operational conditions.

Compatible Volvo models and engines

This specific component is engineered for compatibility with various Volvo models, including the FM series (FM 360, 380, 400, 420, 440, 460, 480, and 500) and the FMX series (380, 420, 500, and 460). It is also specifically fitted to Volvo FMX II variants such as the 380, 420, 500, 540, and 460 models used in construction and heavy commercial applications.

Maintenance and inspection guidance

Technicians should inspect the pump during routine cooling system service or when replacing drive belts. Common signs of wear include coolant leakage from the weep hole or unusual mechanical noise originating from the bearing assembly. Ensuring a proper seal during installation is vital to prevent system pressure loss.

Troubleshooting cooling system performance

Maintaining a consistent flow rate is essential for preventing cavitation and thermal stress in high-output engines. Consult your authorized distributor to check the compatibility list for your specific engine configuration.

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.