Gates 39343 Accessory Drive Belt Tensioner Assembly

OE Belt Tensioner for Ram and Jeep

The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 39343, is built for accessory drive belt systems that need consistent belt control and OE-style fit. It is a direct replacement tensioner for select Ram 1500, Ram 1500 Classic, Jeep Wrangler, and Jeep Grand Cherokee applications.

Gates applies OE system design experience to this DriveAlign Premium OE Automatic Belt Tensioner line, with manufacturing held to rigid tolerances for fit, form, and function. If you are replacing a worn belt tensioner on a Ram 1500 or Jeep Grand Cherokee, 39343 is built around the original equipment specification.

Key Features

• Accessory drive belt tensioner assembly for V-ribbed belt systems
• Steel construction for strength and durability
• OE Exact comparison rating for direct-fit replacement use
• Single smooth/backside pulley design
• 2 mounting holes for OE-style installation points
• Pulley dimensions: 2.48 in. outside diameter, 1.02 in. width
• Bearing bore inside diameter: 0.67 in. / 17 mm

Detailed Description

Gates 39343 is an automatic accessory drive belt tensioner assembly engineered for OE replacement service. It uses a steel body and a smooth/backside pulley to maintain proper belt routing and tension on V-ribbed accessory drive systems. The OE Exact rating reflects a direct replacement approach for vehicles that require original-style fitment and operating geometry.

This part cross-references Mopar 68325057AA for the same application. It is a strong match for Ram 1500 and Jeep applications where belt tension stability is critical to accessory drive performance. For shoppers searching for a 2020-2023 Ram 1500 belt tensioner or a 2014-2018 Jeep Grand Cherokee automatic belt tensioner, part number 39343 is the OE-style service part to compare.

What It Helps Address

• Belt squeal caused by weak or inconsistent tension
• Accessory drive belt flutter or vibration
• Uneven belt tracking on V-ribbed systems
• Loss of proper belt tension from a worn tensioner assembly
• Noise from a deteriorated pulley bearing

Installation Notes and Tips

Verify the belt routing and compare the original tensioner before installation. Confirm pulley alignment, mounting-hole location, and the smooth/backside pulley contact surface match the vehicle’s accessory drive layout. This part is listed for Fits 2020-2023 Ram 1500, N/A; Fits 2014-2018 Ram 1500, N/A; Fits 2020-2022 Jeep Wrangler, N/A; Fits 2019 Ram 1500 Classic, N/A; and Fits 2014-2018 Jeep Grand Cherokee, N/A.

For best results, inspect the belt, idlers, and related accessory drive components during service so the new tensioner can operate within the correct range.

Quality Assurance

Gates manufactures DriveAlign Premium OE Automatic Belt Tensioners to rigid tolerances and specifications to support OE fit, form, and function. The 39343 is built as an OE-style replacement for select Ram and Jeep applications.