21030340 Water Pump for Volvo FM Series

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, ensuring the continuous circulation of coolant between the engine block and the radiator. By maintaining steady flow, it prevents overheating and helps the engine operate within its ideal temperature range even under high-load conditions typical of heavy commercial vehicles.

Vehicle and engine compatibility

This specific unit is designed for compatibility with Volvo FM series trucks, including models such as the FM 500, FM 380, FM 420, and FM 460. It is specifically engineered to fit Volvo FM13 engines featuring the D13A engine code, providing a reliable replacement for heavy-duty applications.

Installation and maintenance

To ensure optimal performance, technicians should inspect the pump and its housing during regular belt service intervals. Common indicators for replacement include coolant leakage from the weep hole or unusual noise originating from the bearing assembly. Maintaining a high-strength component helps prevent serious engine damage caused by thermal fluctuations.

Troubleshooting guidance

Always verify exact fitment by checking the engine code and existing components before installation to ensure seamless integration with the cooling system.

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 21030340.