A4712020319
Guide Pulley
Detroit Diesel

The guide pulley is a critical component that directs the serpentine belt along its designated path, ensuring proper alignment and reducing wear on the belt and other components. Manufactured from steel, it offers strength and resistance to operational stresses. Its role in maintaining correct belt tension and preventing misrouting helps avoid slippage, which can lead to reduced accessory performance or engine overheating. Properly aligned belts also contribute to quieter engine operation and longer component life. The guide pulley’s design allows for precise positioning within the belt routing system, making installation straightforward. It is an essential part that supports efficient power transfer from the crankshaft to other accessories. Source One Parts Center provides this part, emphasizing its importance in maintaining the smooth operation of your engine’s accessory drive and overall reliability.