21648716 Water Pump — Volvo FM Series

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, driving the circulation of coolant between the engine block and the radiator. By ensuring a steady flow, it prevents overheating and maintains the thermal stability required for heavy-duty engine performance.

Compatible Volvo FM models

This component is specifically designed for compatibility with Volvo FM III models, including variants such as the 380, 460, 430, and 330. It is also suitable for Volvo FM and FM II series trucks, providing a reliable replacement for various heavy commercial vehicle applications.

Maintenance and installation

For optimal performance, technicians should inspect the pump and its drive belt during regular cooling system maintenance. When replacing the unit, it is recommended to check the condition of the seals and the integrity of the cooling hoses to prevent future leaks or pressure imbalances.

Troubleshooting cooling issues

If you notice coolant leakage from the weep hole or unusual noise during engine operation, it may indicate that the internal bearings or mechanical seals require attention. Always verify fitment with the vehicle's specific engine requirements.

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 21648716.