Gates 39371 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39371) is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select Cadillac, Chevrolet, and GMC models, this tensioner assembly ensures reliable belt performance and longevity.

• Constructed from durable steel for strength and longevity
• Compatible with V-ribbed belt types
• Single pulley design with a smooth backside contact surface
• Outside diameter measures 2.76 inches (70 mm) with a width of 1.22 inches (31 mm)
• One mounting hole for secure installation
• Bearing bore inside diameter of 0.67 inches (17 mm)
• OE exact fit and performance for specified vehicle models

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering original equipment (OE) quality and fitment. This product line is designed to meet or exceed factory specifications, providing precise tension control for accessory drive belt systems. The 39371 tensioner assembly is part of this line, ensuring compatibility and reliable operation for vehicles requiring OE exact replacement parts.

Detailed Product Description

This accessory drive belt tensioner assembly is made from steel, providing the necessary durability to withstand engine bay conditions. It features a single pulley without flanges, designed for use with V-ribbed belts commonly found on Cadillac Escalade, Chevrolet Silverado 1500, GMC Sierra, and Yukon models. The pulley has a smooth backside contact surface to reduce belt wear and noise. With an outside diameter of 2.76 inches and a width of 1.22 inches, it fits precisely within the accessory drive system. The bearing bore inside diameter of 0.67 inches ensures smooth rotation and proper belt tensioning. The assembly includes one mounting hole for straightforward installation.

Compatible Vehicles and Applications

• Cadillac Escalade and Escalade ESV
• Chevrolet Silverado 1500, 1500 LD, and 2500
• GMC Sierra, Sierra 1500, and Sierra 1500 Limited
• Chevrolet Tahoe
• GMC Yukon and Yukon XL

Common Issues Addressed by This Belt Tensioner

• Excessive belt slack causing slipping or noise
• Wear or damage to the pulley affecting belt alignment
• Loss of proper belt tension leading to accessory malfunction
• Premature belt wear due to improper tension
• Failure of original tensioner components resulting in drive system issues

Installation Notes and Tips

Ensure the engine is off and cool before beginning installation. Remove the old tensioner assembly carefully, noting the routing of the V-ribbed belt. Install the Gates DriveAlign Premium OE Automatic Belt Tensioner (39371) using the single mounting hole, securing it to factory torque specifications. Verify proper belt alignment and tension after installation. It is recommended to inspect the belt for wear and replace if necessary during this service.

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner is manufactured to meet OE standards for fit, form, and function. This part number 39371 undergoes rigorous quality control to ensure durability and reliable performance. Gates typically offers a limited warranty on their DriveAlign product line; please refer to official Gates documentation for specific warranty details.