Gates 38340 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner 38340

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38340 is engineered for reliable accessory drive belt tension in select Nissan and INFINITI vehicles. Designed with precision steel construction, this tensioner assembly ensures consistent belt alignment and optimal performance for V-ribbed belt systems.

• Constructed from durable steel for long-lasting strength
• Compatible with V-ribbed accessory drive belts
• Features a smooth backside contact surface for reduced wear
• Includes one pulley without flange, measuring 4.04 inches (102.5 mm) in outside diameter
• Mounting with three holes for secure installation
• Bearing bore inside diameter of 0.67 inches (17 mm) for precise fit
• Width of pulley is 1.36 inches (34.5 mm)

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering exact original equipment (OE) fit and function. This product line is designed to meet or exceed OE specifications, providing a direct replacement tensioner assembly that maintains proper belt tension and alignment. The 38340 part number is an OE exact match, ensuring compatibility and performance for Nissan and INFINITI accessory drive belt systems.

Detailed Product Description

This accessory drive belt tensioner assembly is specifically designed for use with V-ribbed belts, commonly found in Nissan Armada, Pathfinder, Pathfinder Armada, QX56, and TITAN models. The tensioner’s steel construction offers durability under engine bay conditions, while the smooth backside contact surface minimizes belt wear. The pulley included is a single, non-flanged unit with a 4.04-inch outside diameter and a width of 1.36 inches, optimized for proper belt tracking. The bearing bore inside diameter of 0.67 inches (17 mm) ensures a precise fit on the mounting shaft, contributing to smooth rotation and tension control.

Common Applications and Issues Addressed

• Maintains proper tension on V-ribbed accessory drive belts
• Prevents belt slippage and misalignment
• Reduces premature belt wear and noise
• Addresses belt tensioner pulley wear or failure
• Restores accessory drive system reliability in Nissan Armada, Pathfinder, QX56, and TITAN vehicles

Installation Notes and Tips

• Ensure compatibility with Nissan or INFINITI model and year before installation
• Inspect belt condition and replace if worn when installing the tensioner
• Use proper tools to remove and install the tensioner assembly to avoid damage
• Verify mounting hole alignment and torque specifications per vehicle service manual
• Check belt routing after installation to confirm correct alignment

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38340 is manufactured to meet OE standards for fit, form, and function. This part undergoes rigorous quality control to ensure durability and performance in demanding automotive environments. The product is backed by Gates’ standard warranty coverage, providing confidence in its reliability for Nissan and INFINITI accessory drive belt systems.