Gates 39557 Accessory Drive Belt Tensioner Assembly

OE Automatic Belt Tensioner for Nissan

The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 39557, is built for accessory drive belt systems that require precise belt control and stable operation. It is an OE Exact replacement made from steel with a single smooth/backside pulley for V-ribbed belt applications.

Gates applies original equipment system design standards to the DriveAlign Premium OE Automatic Belt Tensioner line, with manufacturing held to rigid tolerances for OE fit, form, and function. This helps deliver the correct geometry and mounting alignment for Nissan TITAN, TITAN XD, NV2500, and NV3500 applications.

Key Features

• OE Exact grade automatic belt tensioner assembly
• Steel construction for accessory drive belt system durability
• Single smooth/backside pulley for V-ribbed belt routing
• 3 mounting holes for direct-fit installation geometry
• 2.99 in. outside diameter pulley with 1.36 in. width
• Bearing bore inside diameter: 17 mm (.67 in.)
• DriveAlign Premium OE Automatic Belt Tensioner, part number 39557

Detailed Description

This Gates 39557 tensioner is engineered for the accessory drive belt system and is listed for 2017-2024 Nissan TITAN, 2016-2024 Nissan TITAN XD, 2018-2021 Nissan NV2500, and 2018-2021 Nissan NV3500. It is a direct replacement style tensioner assembly that supports proper belt tension on V-ribbed belt systems while matching OE specifications for mounting and pulley design. This part cross-references Four Seasons 39557 for the same application.

What It Helps Address

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

Installation Notes and Tips

Verify the belt routing, mounting-hole layout, and pulley style before installation. Confirm the vehicle application by year, make, and model: Fits 2017-2024 Nissan TITAN, N/A; Fits 2016-2024 Nissan TITAN XD, N/A; Fits 2018-2021 Nissan NV2500, N/A; Fits 2018-2021 Nissan NV3500, N/A. Inspect the accessory drive belt, pulleys, and related components for wear before installing the new tensioner.

Quality Assurance

Gates manufactures DriveAlign Premium OE Automatic Belt Tensioners to rigid OE tolerances and specifications, with a focus on OE fit, form, and function. The 39557 is built as an OE Exact replacement for Nissan TITAN and Nissan TITAN XD applications, as well as NV2500 and NV3500 coverage.