20920085 Volvo FMX D13K Water Pump

What does a water pump do?

This water pump is a critical component of the engine cooling system, designed to circulate coolant between the engine and the radiator. By maintaining a consistent flow, it prevents overheating and ensures stable operating temperatures for heavy-duty engines during demanding service conditions.

Compatible vehicles and engines

This part is specifically compatible with Volvo FMX models, including variants 380, 420, 460, and 500 equipped with D13K engines. It is also fitted to various Volvo FM series trucks such as the FM 380, FM 420, FM 460, and FM 500 models.

Installation and maintenance

To ensure long-term reliability, technicians should inspect the pump for signs of coolant leakage or bearing noise during routine maintenance. It is highly recommended to renew the pump together with the timing belt or alternator belt service to prevent unexpected downtime.

Troubleshooting and selection

Proper installation ensures that the impeller and mechanical seals function correctly under high pressure. Maintaining a clean cooling system helps prevent cavitation and premature wear of the internal shaft and bearings.

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 20920085.