529.03.0040 Visco Fan for Volvo Trucks

What does a visco fan do?

This visco fan plays a critical role in the engine cooling system by regulating radiator airflow to prevent overheating. It functions through a heat-sensitive viscous clutch mechanism, ensuring the fan speed adjusts according to the engine's thermal requirements. This component is manufactured using high-strength components to withstand rigorous heavy-duty service conditions.

Compatible vehicle models and engines

The unit is compatible with a wide range of Volvo models, including FH12, FH13, FH16, FM10, FM11, FM12, FM13, FMX, NH12, VHD, and VNL series. It is also suitable for Volvo B11R and B13R models, as well as engines such as D10A, D11A, D11B, D12C, D12D, D13A, D13B, D13C, D16C, D16E, and D16G. Additionally, it fits Mack Granite (MP7) and Mack Pinnacle (MP8) trucks.

Installation and maintenance

For proper maintenance, technicians should inspect the viscous coupling for any leaks and ensure the fan blades are free of debris. When replacing the unit, verify that all mounting points are secure and the drive mechanism is correctly aligned with the engine pulley to prevent premature wear.

System reliability

Maintaining an efficient cooling fan is vital for preventing engine overheating and ensuring long-term reliability in heavy commercial vehicle fleets. Check the compatibility list to ensure exact fitment for your specific engine configuration.

OE cross-reference

529.03.0040 (Visco Fan Fan) is the equivalent of the Volvo OE numbers. This part directly replaces Volvo OE numbers 20765593, 21382371, 85003294.