85003708 Volvo FMX FMX II Water Pump

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 and the radiator. By maintaining consistent flow, it prevents overheating and protects engine components under heavy-duty operating conditions. This part is built with high-strength components to withstand the thermal stresses typical of heavy commercial vehicle engines.

Compatible Volvo engines and models

This specific water pump is designed for compatibility with Volvo FM models, including the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. It is also suitable for Volvo FMX II variants such as the 460, 330, 420, 500, 540, 370, 520, 430, 400, 440, 480, and 380, as well as Volvo FMX models including the 480, 440, and 400. Consult your authorized distributor to check the compatibility list.

Installation and maintenance guidance

For optimal performance and longevity, technicians should inspect the pump during belt service intervals. When replacing this component, it is recommended to check the condition of the thermostat and radiator hoses to ensure full system integrity. Proper installation ensures that the impeller maintains precise flow rates relative to engine speed.

Troubleshooting and inspection

Regular monitoring for signs of coolant leakage or unusual bearing noise can prevent more significant engine issues. Maintaining a clean cooling system helps prevent cavitation and erosion within the pump housing.

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 85003708.