20744939 Volvo B9TL D9B Water Pump

What does a water pump do?

This water pump serves as a vital component within the engine cooling system, ensuring the continuous circulation of coolant between the engine block and the radiator. Designed for high-load environments, it utilizes heavy-duty grade materials to maintain consistent flow and prevent overheating during intense operation.

Vehicle and engine compatibility

This specific model is compatible with Volvo B9TL vehicles equipped with D9B engines. It is engineered to meet the rigorous demands of the heavy commercial vehicle sector, ensuring reliable thermal regulation for bus and truck applications.

Installation and maintenance

To ensure optimal performance, technicians should inspect the pump during every belt service. Check for signs of coolant leakage from the weep hole or unusual noise from the bearing assembly. Replacing this component alongside timing or alternator belts is recommended to prevent sudden system failure.

Troubleshooting and selection

Maintaining a healthy cooling system is essential for engine longevity. Always verify compatibility with your specific engine serial number to ensure a precise fit during installation.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20744939.