Gates 39335 Accessory Drive Belt Tensioner Assembly

OE Automatic Belt Tensioner for Nissan and INFINITI

The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 39335, is built for accessory drive belt systems that require precise belt control and OE-style fit. It is a steel tensioner assembly with a smooth/backside pulley and OE Exact comparison rating for direct replacement service.

Compatible With 2011-2013 INFINITI QX56, 2014-2024 INFINITI QX80, 2017-2024 Nissan Armada, 2012-2017 Nissan NV2500, and 2012-2017 Nissan NV3500. This Gates 39335 tensioner is a direct-fit solution for vehicles using a V-ribbed belt and a single pulley automatic tensioner design.

Key Features

• Steel accessory drive belt tensioner assembly
• OE Exact comparison rating for OE-style fit, form, and function
• Single pulley design with smooth/backside contact surface
• V-ribbed belt type application
• 3 mounting holes for secure installation
• Outside diameter: 2.99 in. (76 mm)
• Width: 1.36 in. (34.5 mm)
• Bearing bore inside diameter: 0.67 in. (17 mm)

DriveAlign Premium OE Design

Gates DriveAlign Premium OE Automatic Belt Tensioners are engineered from Gates’ original equipment system design experience. The 39335 follows rigid manufacturing tolerances to match OE fit, form, and function, making it a practical replacement for Nissan Armada, Nissan NV2500, Nissan NV3500, INFINITI QX56, and INFINITI QX80 applications that rely on stable accessory belt tension.

This part cross-references Continental 49805 for the same application.

What This Tensioner Helps Address

• Belt squeal caused by weak or inconsistent tension
• Accessory drive belt flutter or vibration
• Uneven belt tracking on the smooth/backside pulley path
• Loss of belt tension from a worn automatic tensioner assembly
• Noise from a failing pulley bearing in the belt drive system

Installation Notes and Tips

Verify belt routing, pulley alignment, and mounting-hole alignment before installation. Inspect the accessory drive belt, idler pulleys, and adjacent components for wear so the new tensioner can operate correctly. Confirm the vehicle application by year, make, and model before ordering Gates 39335.

Quality Assurance

Gates manufactures this DriveAlign tensioner to OE-level specifications and rigid tolerances for consistent performance in the accessory drive belt system. The OE Exact rating reflects a direct replacement focus for the listed Nissan and INFINITI applications.