Gates 38180 Accessory Drive Belt Tensioner Assembly - Smooth Pulley

Gates DriveAlign OE Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38180, is built for accessory drive belt systems that need consistent belt control and OE-style fit. It is a direct replacement for select Dodge Ram 1500, Ram 2500, and Ram 3500 applications, including models with V-ribbed belt routing and smooth pulley configurations.

Gates applies original equipment system design experience to the DriveAlign Premium OE Automatic Belt Tensioner line. This product line focuses on OE fit, form, and function, with manufacturing held to tight tolerances for dependable alignment and belt tension control in demanding truck applications.

Key Features

• Part number 38180 for select Dodge Ram accessory drive belt systems
• OE Performance rating for factory-style operation
• Thermoplastic construction
• Single-pulley tensioner assembly with smooth/backside contact surface
• V-ribbed belt type application
• Outside diameter: 76 mm (2.99 in)
• Width: 29.5 mm (1.16 in)
• Bearing bore inside diameter: 17 mm (.67 in)
• Mounting hole quantity: 1

Product Details

This Gates automatic belt tensioner is engineered for accessory drive belt system service where stable belt tension is critical to belt tracking and accessory operation. The DriveAlign Premium OE Automatic Belt Tensioner line is manufactured to rigid specifications so the replacement part matches OE fit and function. For Dodge Ram 2500 and Ram 3500 trucks, as well as the 2002 Dodge Ram 1500 with California emissions equipment, this tensioner supports the belt path used in the original application. This part cross-references Continental 49284 for the same application.

Common Problems It Can Address

• Belt squeal caused by weak or inconsistent tension
• Belt flutter or vibration in the accessory drive system
• Misalignment issues that affect belt tracking
• Premature belt wear from a worn tensioner assembly
• Accessory drive noise related to tensioner bearing or pulley wear

Installation Notes

Verify belt routing, pulley style, and vehicle configuration before installation. This part is listed for 2000-2002 Dodge Ram 2500 and Ram 3500 with smooth pulley applications, 1997-2001 Dodge Ram 3500, and 1994-1999 Dodge Ram 2500 and Ram 3500 without California emissions system requirements. Confirm the existing tensioner matches the OE-style mounting and pulley dimensions before replacement. For best results, inspect the belt and related accessory drive components during service.

Quality Assurance

Gates is a global OE system designer, and the DriveAlign Premium OE Automatic Belt Tensioner line is produced to meet OE-quality standards for durability, fit, and performance. The part is manufactured to rigid tolerances and specifications to support proper OE fit, form, and function in the listed Dodge Ram applications.