21969188 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, responsible for circulating coolant between the engine and the radiator to prevent overheating. Built with high-strength components, it ensures stable thermal regulation even under the intense operating conditions typical of heavy commercial vehicles.

Compatible Volvo models

This specific unit is compatible with Volvo FMX II models including the 330, 370, 410, and 450 variants. It is also fitted to various Volvo FM series trucks such as the FM 330, FM 370, FM 410, and FM 450. These parts are essential for maintaining the cooling performance of heavy-duty truck engines.

Installation and maintenance

To ensure proper operation, technicians should inspect the pump during routine belt services. Common indicators for replacement include coolant leaks from the weep hole or unusual bearing noise. It is recommended to check the pump's condition alongside the timing belt or alternator belt maintenance to avoid unexpected downtime.

Troubleshooting and replacement

Consult your authorized distributor for further information.

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 21969188.