85000347 Volvo FMX D11B 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 engine overheating and ensures stable operating temperatures during heavy-duty cycles.

Compatible Volvo models and engines

This component is specifically compatible with Volvo FMX models featuring the D11B engine, including variants such as the 480, 440, and 400. It is also fitted to various Volvo FM series trucks like the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. This part meets Volvo OE requirements for heavy commercial vehicle applications.

Installation and maintenance guidance

During installation or routine maintenance, technicians should inspect the pump housing and impeller for signs of wear. It is recommended to check for coolant leaks or bearing noise and to replace the unit alongside timing or alternator belt services to ensure system integrity. Always verify fitment using the engine code and chassis number.

Troubleshooting and selection

To ensure correct application in construction machinery or tractor units, confirm that the mounting flange and port alignments match the existing installation. Proper maintenance of the cooling circuit helps prevent premature failure of other high-strength components within the engine block.

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 85000347.