ACDelco 38620 Heavy Duty Drive Belt Tensioner Assembly with Pulley

The ACDelco 38620 is a heavy-duty accessory drive belt tensioner assembly designed to maintain proper belt tension throughout engine operation. As a critical component of the accessory belt drive system, this tensioner ensures that driven accessories — including the alternator, fan, and air conditioning compressor — receive consistent, reliable power transfer.

Key Features:

• Heavy-duty construction with optimized components engineered for maximum strength and durability
• Patented labyrinth seal prevents contamination of internal parts for extended service life
• Long-lasting steel pulleys with dust shields to protect internal bearings from dirt and debris
• Double row bearings engineered to carry greater loads for longer-lasting performance
• Chrome-silicone round torsion spring delivers consistent tension with reduced flex-fatigue compared to flat-spring designs
• Patented damping mechanism reduces vibration, extending the life of the belt, tensioner, and surrounding accessory drive components
• Manufactured to meet specifications for fit, form, and function

Cross-Reference Part Numbers: Gates 38620, Dayco 89446, CARQUEST 38620, NAPA 38620, Goodyear 49575, Litens 910563A, Tendeco 910563, International Harvester (IHC) 1841760C1, Cummins 3100118, Cummins 3102433, Cummins 3104027, Caterpillar 1900643, Caterpillar 3758345, Alliance Truck Parts GT38620

The ACDelco 38620 belt tensioner assembly is a direct-fit replacement part backed by ACDelco's reputation for quality and durability in automotive and heavy-duty applications.