Gates 38260 Accessory Drive Belt Tensioner Assembly - Serpentine

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38260 is engineered for reliable performance in Chevrolet and GMC heavy-duty trucks. Designed to maintain optimal tension on V-ribbed accessory drive belts, this tensioner assembly supports efficient engine operation and accessory function.

• Thermoplastic construction for durability and heat resistance
• Single flanged pulley with 6 V-ribbed grooves
• Outside diameter of 2.99 inches (76 mm) and width of 0.98 inches (25 mm)
• Two mounting holes for secure installation
• Compatible with V-ribbed belt types
• Bearing bore inside diameter of 0.67 inches (17 mm)
• OE exact fit and performance rating

Detailed Product Description and Specifications

This accessory drive belt tensioner assembly from Gates features a thermoplastic pulley designed to withstand the demanding conditions found in Chevrolet Avalanche 2500, GMC Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500 models. The pulley includes six grooves to accommodate V-ribbed belts, ensuring consistent belt alignment and tension. With an outside diameter of 2.99 inches and a width of 0.98 inches, the tensioner fits precisely within the accessory drive system. The bearing bore inside diameter measures 0.67 inches, supporting smooth pulley rotation and reducing wear. The two mounting holes provide a secure attachment point, maintaining stability under engine vibration and load.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates is designed to meet original equipment specifications for automatic belt tensioners. This ensures that the 38260 tensioner assembly delivers consistent tension control and durability comparable to factory-installed components. The line focuses on precise fitment and reliable operation, making it suitable for heavy-duty Chevrolet and GMC trucks requiring exact OE replacement parts.

Applications and Common 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
• Supports accessory components such as alternators, power steering pumps, and air conditioning compressors
• Helps avoid engine overheating due to accessory drive failure

Installation Notes and Tips

• Ensure compatibility with Chevrolet Avalanche 2500, GMC Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500 models
• Verify belt type as V-ribbed before installation
• Use proper torque specifications for mounting bolts to avoid damage
• Inspect belt condition and alignment during installation
• Replace tensioner assembly as a complete unit for optimal performance

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38260 is manufactured to meet OE standards, ensuring reliable fit and function. Gates provides a limited warranty covering defects in materials and workmanship, supporting long-term durability and performance in heavy-duty Chevrolet and GMC trucks.