HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 39383 Accessory Drive Belt Tensioner Assembly
Part #: 39383

Gates 39383 Accessory Drive Belt Tensioner Assembly

DriveAlign Premium OE Automatic Belt Tensioner
⚙️ 24 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner
🚗Fitment: Chevrolet and GMC, Express 2500, Express 3500, Savana 2500, and Savana 3500
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Reliable Automatic Belt Tensioner for Chevrolet and GMC Vans

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39383 is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models, this tensioner assembly ensures consistent belt performance and longevity.

  • Constructed from durable steel for strength and longevity
  • Compatible with V-ribbed belt types used in accessory drive systems
  • Single pulley design with a smooth backside contact surface
  • Precise dimensions: 2.76 inch (70 mm) outside diameter and 1.1 inch (28 mm) width
  • One mounting hole for secure installation
  • OE exact fit and performance for reliable replacement

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering original equipment quality and fitment. This product line is designed to meet or exceed factory specifications, providing a direct replacement for worn or damaged tensioners. The 39383 model maintains proper belt tension automatically, reducing wear on belts and pulleys in Chevrolet and GMC full-size vans.

Product Details and Specifications

This accessory drive belt tensioner assembly features a steel construction that withstands the rigors of engine operation. It includes a single pulley without flanges, measuring 2.76 inches (70 mm) in outside diameter and 1.1 inches (28 mm) in width. The bearing bore inside diameter is 0.67 inches (17 mm), ensuring smooth rotation and reliable belt tracking. The smooth backside contact surface is designed for V-ribbed belts, common in the accessory drive systems of Chevrolet Express and GMC Savana vans.

Common Applications and Issues Addressed

  • Restores proper belt tension to prevent slipping and noise
  • Eliminates premature belt wear caused by improper tension
  • Prevents accessory drive system failures due to belt misalignment
  • Reduces risk of engine overheating by maintaining belt-driven cooling components
  • Addresses tensioner pulley bearing wear and failure

Installation Notes and Tips

Ensure the vehicle is off and cooled before beginning installation. The tensioner mounts with a single bolt, matching the original equipment mounting point. Verify belt alignment and tension after installation to avoid premature wear. Use appropriate tools to avoid damage to the pulley or tensioner assembly during installation.

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39383 is manufactured to meet original equipment standards. It offers an OE exact fit and function for Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to ensure durability and reliability in automotive applications.

BrandGates
Part Number39383
PositionDriveAlign Premium OE Automatic Belt Tensioner
MaterialSteel
Pulley 1 FlangedNo
Bearing Bore Inside Diameter.67
Bearing Bore Inside Diameter17
Width1.1
Width28
Outside Diameter2.76
Outside Diameter70
Mounting Hole Quantity1
Belt TypeV-ribbed
Pulley Quantity1
Bearing Bore Inside Diameter 1 (in).67
Bearing Bore Inside Diameter 1 (mm)17
Belt TypeV-ribbed
Contact SurfaceSmooth/backside
ContentsTensioner assy.
OE Comparison RatingOe exact
Outside Diameter (in)2.76
Outside Diameter (mm)70
Pulley 1 FlangedNo
Width (in)1.1
Width (mm)28

This part fits 24 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2022ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2022ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2022GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2022GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2021ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2021ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2021GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2021GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2020ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2020ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2020GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2020GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2019ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2019ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2019GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2019GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2018ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2018ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2018GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2018GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2017ChevroletExpress 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2017ChevroletExpress 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2017GMCSavana 25002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner
2017GMCSavana 35002.8LL4DIESELN/ADriveAlign Premium OE Automatic Belt Tensioner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

245853482458667624588831245889882458899839383

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.