21864140
Engine Cooling Fan Pulley
Mack

This cooling fan pulley is a critical component in the engine's cooling system, responsible for driving the cooling fan via a belt. Its precise design ensures smooth rotation and optimal belt tension, which are essential for effective airflow and temperature regulation. Proper functioning of the pulley helps prevent engine overheating, thereby protecting engine components from heat-related damage. Made from durable materials, it withstands the stresses of high-speed operation and exposure to engine heat. Easy to install and maintain, this pulley plays a vital role in maintaining engine efficiency and longevity. Source One Parts Center provides this part to support reliable cooling system performance in heavy-duty trucks, ensuring your vehicle runs smoothly under demanding conditions.