529.03.0023 VOLVO FM12 380 Visco Fan — 85000021

The 529.03.0023 Visco Fan is a critical component within the cooling system, designed to regulate engine temperature through optimized airflow. This high-strength component provides reliable thermal management for heavy commercial vehicle engines, ensuring consistent operation under high-load conditions.

529.03.0023 is the OE equivalent of the VOLVO 85000021 and 20397618 and MAHLE-BEHR 8MV 376 731-461 visco fan used in the VOLVO FM12 340, FM12 380, FM12H 340, FM12H 380, FM9 9 260, FM9 9 300, FM9 9 340, and FM9 9 380 models. This part is engineered to meet strict OEM specifications for seamless integration and performance.

Workshop technicians should ensure that the mounting surfaces are clean and free of debris before installation to maintain optimal fan balance and airflow efficiency. This unit features a diameter of ø680 mm, making it an exact fit for specified heavy-duty cooling assemblies. Regular inspections of the viscous coupling are recommended to prevent overheating during peak operating temperatures.

Maintaining the cooling system with high-grade components like this one helps prevent engine overheating and extends the service life of the vehicle's engine components.