85155174
Engine Camshaft Idler Gear
Mack

The camshaft idler gear is a vital component within the engine’s timing system, responsible for maintaining proper synchronization between the camshaft and crankshaft. Its precise operation ensures accurate valve timing, which is essential for optimal engine performance, fuel efficiency, and emissions control. Made from durable materials, this gear withstands the stresses of high-speed rotation and thermal expansion. Proper functioning of the idler gear prevents timing chain slack or misalignment, which could lead to engine misfires or damage. Regular inspection and replacement of this part are crucial for maintaining engine reliability. Source One Parts Center supplies this critical component to support your engine’s longevity and smooth operation, especially in demanding heavy-duty environments.