Genuine OEM Land Rover Engine Cooling Fan Viscous Clutch, part number ERR2266. This vital component is responsible for engaging and disengaging the engine's cooling fan, regulating airflow through the radiator to maintain optimal engine operating temperature. It is typically mounted to the water pump shaft at the front of the engine. Constructed from durable aluminum, this clutch weighs 1.238 kg and is designed for efficient heat dissipation. Choosing a genuine OEM viscous clutch ensures precise calibration for fan engagement, critical for preventing engine overheating and maintaining fuel efficiency.