20744939 Volvo FM FMX Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for circulating coolant between the engine and the radiator. By maintaining constant flow, it prevents overheating and ensures the engine operates within its designed thermal limits during intensive service cycles.

Compatible Volvo trucks and models

This component is specifically engineered for Volvo FM models, including variants such as the FM 300, FM 340, FM 360, FM 380, FM 390, FM 400, FM 430, and FM 480. It is also compatible with Volvo FMX series trucks, specifically the FMX 400, 440, and 480 models.

Installation and maintenance guidance

For professional installation, technicians should inspect the drive belt and related seals during replacement to ensure system integrity. Maintaining proper tension on the belt-driven mechanism is essential to prevent premature wear of the internal impeller or shaft. Check compatibility list to ensure correct fitment for your specific engine configuration.

Troubleshooting and inspection

Regular inspection of the pump housing and weep hole can help identify early signs of bearing play or coolant leakage before they lead to significant system failure.

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.