HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 39415 Accessory Drive Belt Tensioner Assembly
Part #: 39415

Gates 39415 Accessory Drive Belt Tensioner Assembly

DriveAlign Premium OE Automatic Belt Tensioner
⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner
🚗Fitment: Jeep, Wrangler and Wrangler JK
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39415 is engineered for precise belt tension control in Jeep Wrangler and Wrangler JK models. Designed with thermoplastic material and a hydraulic damper, this tensioner assembly ensures consistent performance and durability in accessory drive belt systems.

  • Constructed from durable thermoplastic for long-lasting use
  • Includes a single pulley with a smooth backside contact surface
  • Hydraulic damper integrated for optimal belt tensioning
  • Compatible with V-ribbed belt types
  • Two mounting holes for secure installation
  • Exact OE comparison rating for reliable fit and function
  • Dimensions: 2.56 inch (65 mm) outside diameter, 0.96 inch (24.5 mm) width
  • Bearing bore inside diameter of 0.67 inch (17 mm)

Detailed Product Description

This accessory drive belt tensioner assembly, part number 39415, is specifically designed for Jeep Wrangler and Wrangler JK vehicles. The tensioner features a thermoplastic construction that balances strength and weight, contributing to efficient engine operation. It includes a single pulley without flanges, providing a smooth backside contact surface that is compatible with V-ribbed belts. The integrated hydraulic damper helps maintain consistent belt tension, reducing wear and preventing slippage. With two mounting holes, the tensioner ensures a secure fit within the accessory drive belt system. Its exact OE comparison rating confirms that it meets original equipment specifications for fit, form, and function.

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering precise belt tension control with OE exact fitment. This product line incorporates advanced materials and hydraulic damping technology to enhance belt system reliability and longevity. The 39415 tensioner is part of this line, offering Jeep Wrangler and Wrangler JK owners a component engineered to meet factory standards and maintain optimal accessory drive performance.

Common Applications and Issues Addressed

  • Maintains proper tension on V-ribbed accessory drive belts
  • Prevents belt slippage and associated engine accessory malfunctions
  • Reduces premature belt wear and noise
  • Eliminates issues caused by worn or failing tensioners in Jeep Wrangler and Wrangler JK models
  • Supports smooth operation of alternator, power steering, and air conditioning belts

Installation Notes and Tips

  • Ensure compatibility with Jeep Wrangler and Wrangler JK before installation
  • Inspect belt condition and alignment during replacement
  • Use proper torque specifications for mounting bolts to avoid damage
  • Verify pulley alignment to prevent belt wear
  • Replace tensioner assembly as a complete unit including hydraulic damper for best results

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39415 is manufactured to meet stringent quality standards with an exact OE comparison rating. This ensures reliable performance and fitment for Jeep Wrangler and Wrangler JK vehicles. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

BrandGates
Part Number39415
PositionDriveAlign Premium OE Automatic Belt Tensioner
Bearing Bore Inside Diameter.67
Bearing Bore Inside Diameter17
Bearing Bore Inside Diameter 1 (in).67
Bearing Bore Inside Diameter 1 (mm)17
Belt TypeV-Ribbed
Belt TypeV-Ribbed
Contact SurfaceSmooth/Backside
ContentsTensioner Assy., Hydraulic Damper
MaterialThermoplastic
Mounting Hole Quantity2
OE Comparison RatingOE Exact
Outside Diameter2.56
Outside Diameter65
Outside Diameter (in)2.56
Outside Diameter (mm)65
Pulley 1 FlangedNo
Pulley 1 FlangedNo
Pulley Quantity1
Width.96
Width24.5
Width (in).96
Width (mm)24.5

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2018JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2018JeepWrangler JK3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2017JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2016JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2015JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2014JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2013JeepWrangler3.6LV6GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2012JeepWrangler3.6LV6GASN/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:

394154627038AA4985689689999627999627A

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