21974078 Volvo B11R D11K 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 management, it prevents overheating and ensures the longevity of engine components under demanding operational conditions.

Compatible vehicles and engines

Designed specifically for Volvo B11R models featuring D11K engines, this part ensures precise fitment and performance. It is an essential replacement part for workshop technicians maintaining heavy commercial vehicle fleets.

Installation and maintenance

To ensure proper operation, it is recommended to inspect the pump during routine belt services. Technicians should check for signs of coolant leakage or unusual bearing noise to prevent sudden engine overheating. Always verify that the mounting surfaces are clean and gaskets are seated correctly during installation.

Troubleshooting and selection

Maintaining a stable cooling environment is vital for the high-strength components of the engine block and cylinder head.

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 21974078.