21814036 Volvo FM D11B Water Pump

What does a water pump do?

This water pump is a critical component of the engine cooling system, responsible for circulating coolant throughout the engine block and radiator. It ensures consistent thermal management, which is essential for maintaining the operational integrity of high-performance diesel engines in heavy commercial vehicles.

Compatible vehicles and engines

This part is specifically engineered for Volvo FM series trucks, including models such as the FM 500, FM 380, FM 420, and FM 460. It is also compatible with Volvo FM11 units equipped with the D11B engine, providing reliable performance under demanding duty cycles.

Installation and maintenance

For proper installation, technicians should verify that all mounting surfaces are clean and that the cooling system is fully bled of air to prevent cavitation. Regular inspection of the pump housing and seals is recommended to ensure the continuous circulation required by heavy-duty engines.

System performance and reliability

Maintaining a stable coolant flow helps prevent thermal stress on internal engine components. For professional fleet maintenance and workshop technicians, choosing high-strength components is key to reducing downtime in heavy commercial applications.

OE cross-reference

525.03.0005 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21814036.