ACDelco 39084 Professional Automatic Belt Tensioner Assembly with Pulley

The ACDelco 39084 Professional Automatic Belt Tensioner Assembly is designed to maintain optimal serpentine belt tension for reliable engine accessory operation. This complete assembly includes a spring-loaded tensioner mechanism and pulley that automatically compensates for belt wear and stretch over time, ensuring consistent performance throughout the service life.

Key Features:

• Complete tensioner assembly with integrated pulley for convenient replacement
• Spring-loaded automatic tensioning mechanism maintains proper belt tension
• Professional-grade construction designed for durability and extended service life
• Direct-fit replacement for specific vehicle applications
• Precision-engineered to OE specifications for reliable performance
• Helps prevent belt slippage, noise, and premature accessory wear

This tensioner assembly is part of ACDelco's Professional line, engineered to meet demanding performance requirements. Regular inspection and replacement of the belt tensioner is essential for maintaining proper engine accessory function and preventing unexpected belt failure.