21648711 Volvo FM D13K 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 and the radiator. By maintaining consistent thermal regulation, it prevents engine overheating and ensures long-term reliability under heavy-duty operating conditions.

Compatible Volvo FM models

This specific unit is designed for Volvo FM series trucks, including models such as the FM 460, FM 380, FM 420, FM 500, FM 400, FM 440, FM 360, and FM 480. It is specifically optimized for use with the D13K engine series to ensure precise fitment and performance.

Installation and maintenance

For professional installation, technicians should inspect the drive belt and mounting surfaces during replacement. Ensuring that the mechanical seal and impeller assembly are properly seated will prevent future leaks and maintain system pressure throughout the service interval.

Troubleshooting guidance

Regular monitoring of coolant levels and checking for signs of weeping or bearing noise can help identify potential failure points before they lead to system downtime.

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 21648711.