Gates 38136 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38136) is engineered for reliable performance in Chevrolet and GMC heavy-duty trucks. Designed specifically for models like the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500, this tensioner assembly ensures proper accessory drive belt tension and alignment.

• Constructed from durable steel for long-lasting strength
• Compatible with V-ribbed belt systems
• Single pulley design with a smooth backside contact surface
• Outside diameter of 2.99 inches (76 mm) and width of 1.2 inches (30.5 mm)
• One mounting hole for secure installation
• OE exact fit and performance for Chevrolet and GMC heavy-duty trucks

Detailed Product Description

This accessory drive belt tensioner assembly features a steel construction that provides the necessary durability to withstand the demands of heavy-duty truck operation. The tensioner includes a single pulley without flanges, designed to work with V-ribbed belts commonly found in Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. The pulley has an outside diameter of 2.99 inches (76 mm) and a width of 1.2 inches (30.5 mm), with a bearing bore inside diameter of 0.67 inches (17 mm), ensuring smooth rotation and consistent belt tension.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering original equipment (OE) exact replacements for accessory drive belt tensioners. This line is designed to meet or exceed factory specifications, providing reliable belt tension and alignment to maintain proper accessory drive system function. Part number 38136 is part of this line, ensuring compatibility and performance for select Chevrolet and GMC heavy-duty trucks.

Common Applications and Issues Addressed

• Maintains proper tension on V-ribbed accessory drive belts
• Prevents belt slippage and premature wear
• Reduces noise caused by loose or misaligned belts
• Helps avoid accessory component failure due to improper belt tension
• Restores factory belt alignment and drive system efficiency

Installation Notes and Tips

Installation of the Gates DriveAlign Premium OE Automatic Belt Tensioner (38136) requires removal of the old tensioner assembly and proper alignment of the new unit. Ensure the mounting hole aligns correctly and the belt is seated properly on the pulley. Use appropriate tools to apply the correct tension and verify belt tracking before completing installation. Refer to vehicle-specific service manuals for torque specifications and detailed procedures.

Quality Assurance and Warranty

Gates manufactures the DriveAlign Premium OE Automatic Belt Tensioner to meet OE standards, ensuring reliable performance and durability. This part is rated as an OE exact replacement, providing confidence in fit and function for Chevrolet and GMC Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. Warranty coverage details should be confirmed with the product documentation or supplier.