21648908 Volvo FM11 D11B Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. Built with high-strength components, it maintains steady thermal regulation even under heavy-duty commercial vehicle operating conditions.

Vehicle and engine compatibility

This component is specifically engineered for Volvo FM11 trucks featuring the D11B engine. It provides a reliable solution for maintaining the cooling cycle in heavy commercial vehicle fleets and construction machinery.

Installation and maintenance

For optimal performance, technicians should inspect the pump during routine belt service intervals. When replacing this unit, ensure the mounting surfaces are clean and the gasket is correctly seated to prevent leaks and maintain system pressure.

Troubleshooting and inspection

Monitoring for signs such as coolant leakage from the weep hole or unusual bearing noise can help prevent engine overheating. Consult your authorized distributor to check the compatibility list.

OE cross-reference

525.03.0016 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21648908.