Gates 39122 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39122 is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for Audi models including A4, A4 Quattro, A5, A5 Quattro, and Q5, this tensioner assembly ensures reliable belt performance and longevity.

• Thermoplastic construction for durability and resistance to wear
• Single pulley design with a smooth backside contact surface
• Compatible with V-ribbed belt types
• Precise dimensions: 2.76 inch (70 mm) outside diameter, 0.94 inch (24 mm) width
• One mounting hole for secure installation
• OE exact fit and performance rating

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering original equipment quality and fitment. This product line is designed to meet or exceed factory specifications, providing consistent belt tension to prevent slippage and premature wear. The 39122 tensioner assembly is part of this line, offering a thermoplastic pulley and precise bearing bore dimensions to match OEM standards for Audi accessory drive systems.

Detailed Product Description and Specifications

This accessory drive belt tensioner assembly features a thermoplastic pulley without flanges, designed to work with V-ribbed belts commonly found on Audi A4, A5, and Q5 models. The pulley has an outside diameter of 2.76 inches (70 mm) and a width of 0.94 inches (24 mm), providing the correct surface area for smooth belt engagement. The bearing bore inside diameter measures 0.67 inches (17 mm), ensuring proper fitment and rotation. With a single mounting hole, installation is straightforward and secure. The smooth backside contact surface reduces belt wear and noise during operation.

Common Applications and Problem Solving

• Maintains proper tension on the accessory drive belt to prevent slipping
• Reduces belt noise caused by improper tension or pulley wear
• Prevents premature belt and component failure due to misalignment
• Restores factory belt tension system performance on Audi A4, A5, and Q5 vehicles
• Addresses issues related to belt squeal and inconsistent accessory operation

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 39122, ensure the mounting surface is clean and free of debris. Verify the belt type is V-ribbed and matches OEM specifications. Use proper torque settings for the single mounting hole to avoid over-tightening. Inspect the belt for wear or damage during installation and replace if necessary. Proper alignment of the pulley is critical to prevent premature belt wear.

Quality Assurance and Warranty

This tensioner assembly is rated as OE exact, meeting original equipment standards for fit, form, and function. Manufactured with thermoplastic materials and precision bearings, it is designed for durability and consistent performance. Gates provides a limited warranty on this part, covering defects in materials and workmanship under normal use conditions.