Gates 36938 Accessory Drive Belt Idler Pulley - Accessory Drive, Smooth Pulley or Upper

OE-Style Accessory Drive Idler Pulley

Gates DriveAlign Premium OE Pulley 36938 is an accessory drive belt idler pulley built for OE-quality fit and function on passenger cars and light trucks. It serves as a smooth backside pulley in accessory drive systems, helping maintain proper belt routing on applications such as Ram 1500, Dodge Charger, and Chrysler 300.

The DriveAlign Premium OE Pulley line focuses on direct-fit replacement parts for accessory drive belt systems, including idler pulley and tensioning pulley applications. Gates 36938 follows that OE-style approach with application-specific dimensions and a thermoplastic pulley body for service replacement use.

• OE Performance grade for direct replacement use
• Thermoplastic pulley construction
• Smooth/backside pulley design
• Outside diameter: 2.75 in. (70 mm)
• Width: 0.97 in. (25 mm)
• Bearing bore inside diameter: 0.66 in. (17 mm)
• Fits accessory drive, smooth pulley, upper, and N/A positions listed in the application data
• Cross-reference: 4891720AA

Detailed Application Coverage

This Gates 36938 pulley is listed across 149 vehicle applications from 2007-2024, including Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Wrangler, Ram 1500, Ram 1500 Classic, Ram 2500, and Ram 3500. Use the confirmed fitment data to match the exact year, make, model, and pulley position before ordering.

What This Pulley Helps Address

• Belt noise from a worn or rough idler pulley bearing
• Improper belt tracking on the accessory drive system
• Visible pulley wear, cracking, or heat damage
• Accessory drive vibration caused by pulley surface wear
• Service replacement needs on OE-style belt routing systems

Installation Notes and Tips

Verify pulley position, belt routing, and bore size against the vehicle application before installation. This part is used in smooth backside accessory drive locations and should be matched to the original pulley style and dimensions. Confirm clearance and alignment on Ram, Dodge, Chrysler, and Jeep applications listed for Gates 36938.

Quality Assurance

Gates DriveAlign Premium OE Pulleys are built for OE-quality fit in accessory drive belt systems and are engineered to meet the dimensional requirements of the listed applications. Part number 36938 is a direct-reference replacement for the same application family.