Gates 39555 Accessory Drive Belt Tensioner Assembly - Water Pump and Air Conditioning

OE Automatic Belt Tensioner for Jeep and Dodge

Gates DriveAlign Premium OE Automatic Belt Tensioner 39555 is built for accessory drive belt systems that need consistent belt control and OE-style fit. It serves applications across Jeep Wrangler, Jeep Cherokee, Jeep Grand Cherokee, Jeep Compass, and Dodge Hornet models, with direct fitment for specific years and configurations.

As part of the Gates DriveAlign Premium OE Automatic Belt Tensioner line, this assembly follows rigid manufacturing tolerances to match original equipment fit, form, and function. The result is a replacement tensioner engineered around the belt system requirements of modern V-ribbed accessory drives.

• OE Performance grade automatic belt tensioner assembly
• Thermoplastic housing for accessory drive belt system use
• V-ribbed belt type application with smooth/backside pulley surface
• Single mounting hole design for direct replacement fitment
• Includes tensioner assembly and bolt
• 17 mm bearing bore inside diameter
• 65 mm outside diameter pulley with 25 mm width
• One pulley, non-flanged design

Detailed Product Overview

Gates 39555 is an accessory drive belt tensioner assembly made to OE specifications for vehicles that rely on stable belt tension to drive engine accessories. It is a direct replacement for select Jeep and Dodge applications, including 2020-2024 Jeep Wrangler, 2019-2023 Jeep Cherokee, 2022-2023 Jeep Grand Cherokee, 2023-2024 Jeep Compass, and 2023-2025 Dodge Hornet. It also fits 2018-2019 Jeep Wrangler for the water pump and air conditioning position. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

The Gates DriveAlign Premium OE Automatic Belt Tensioner line is built from Gates’ original equipment system design experience, with attention to fit, durability, and performance. Part number 39555 is a practical choice when replacing a worn tensioner on Jeep Wrangler, Jeep Cherokee, or Jeep Grand Cherokee accessory drive systems.

Common Problems This Part Addresses

• Belt squeal caused by weak or inconsistent tension
• Belt flutter or vibration in the accessory drive system
• Uneven belt tracking across the pulley path
• Loss of proper tension from a worn tensioner spring or pivot
• Accessory drive noise related to tensioner wear

Installation Notes and Tips

Verify the vehicle year, engine configuration, and belt routing before installation. Confirm the pulley style, mounting location, and application position match the original tensioner on the vehicle. Inspect the belt, idler pulleys, and related accessory drive components at the same time to avoid repeat service. Gates 39555 is listed with a bolt in the contents, but always confirm the exact service requirements for the vehicle before beginning work.

Quality Assurance

Gates manufactures this tensioner to rigid tolerances and OE specifications so it matches original equipment fit, form, and function. The DriveAlign Premium OE Automatic Belt Tensioner line reflects Gates’ background in OE system design and accessory drive component engineering.