18685 Febi Fan Coupling

The Viscous Fan Coupling from Febi (MPN: 18685) is sourced from China and has supplier-listed dimensions of 122 x 125 x 195 mm. It is typically used within the Engine Parts > Cooling System > Radiator Fan category of automotive replacement parts. Dimensions are provided by the supplier and may include packaging dimensions. Radiator fans are engine cooling system components used to increase airflow through the radiator core, independent of vehicle speed. These fans are typically mounted either directly to the radiator or within the radiator shroud, drawing or pushing air to dissipate heat from the engine coolant. Electric fans utilize a motor and fan blades, controlled by the engine control unit via temperature sensors, while viscous clutch fans are mechanically driven by the engine. Fan design varies by vehicle, incorporating blade geometry optimized for airflow and noise reduction, and materials like plastic or aluminum for weight and durability. Proper operation is critical to prevent engine overheating, especially during low-speed operation or high ambient temperatures.