ACDelco 38105 Automatic Belt Tensioner Assembly with Pulley

The ACDelco 38105 Professional Automatic Belt Tensioner Assembly is a premium aftermarket replacement component designed for accessory belt drive systems that require automatic belt tensioning. This complete assembly includes both the tensioner mechanism and pulley, providing a comprehensive solution for maintaining proper serpentine belt operation.

Key Features:

• Patented vibration damping system increases tensioner, belt, and accessory component life
• Torsional round spring design provides consistent tension throughout operation
• Smooth pulley design with 3.5-inch (90mm) outside diameter and 26mm width
• Single mounting hole configuration for straightforward installation
• Sealed design prevents contamination and ensures long-lasting performance
• High-quality bearings resist dirt and salt exposure

This 90-degree molded belt tensioner assembly is critical for optimal operation of the accessory belt drive system, automatically maintaining the correct amount of tension, alignment, and damping for superior performance. Manufactured to meet or exceed OE specifications for fit, form, and function, this ACDelco Gold (Professional) tensioner is engineered specifically for General Motors vehicles and provides reliable coverage for domestic applications. Backed by General Motors quality standards and covered by a limited warranty.