Gates 38450 Accessory Drive Belt Tensioner Assembly

OE-Style Belt Tensioner for VW and Audi

Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38450, is built for accessory drive systems that need accurate belt control and consistent pulley alignment. It fits a wide range of Volkswagen and Audi applications, including Volkswagen Atlas, Volkswagen Passat, and Audi A3 Quattro.

• OE Exact comparison rating for direct replacement fit and function.
• Thermoplastic housing with a flanged pulley for stable belt tracking.
• 6-groove, V-ribbed contact surface for accessory drive belt engagement.
• Includes tensioner assembly and dust shield.

Detailed Product Overview

This Gates accessory drive belt tensioner assembly is engineered to match OE fit, form, and function with rigid manufacturing tolerances. The 62 mm pulley diameter, 25 mm width, and 17 mm bearing bore dimensions support precise belt routing in compatible Volkswagen and Audi accessory drive systems. If you are replacing a worn belt tensioner on a Volkswagen Passat, Volkswagen CC, or Audi TT Quattro, part number 38450 provides a direct OE-style service solution.

DriveAlign Premium OE Automatic Belt Tensioner is Gates’ premium OE replacement line for accessory drive system components. It is intended for buyers who want a tensioner assembly that follows original equipment specifications and maintains proper belt tension under normal engine operation.

Common Problems This Part Addresses

• Belt squeal caused by weak or inconsistent tension.
• Accessory belt flutter from a worn tensioner pulley.
• Misalignment issues in the belt drive system.
• Noise from a deteriorated pulley bearing.
• Loss of belt control in high-mileage accessory drive systems.

Installation Notes and Tips

Verify belt routing, pulley alignment, and mounting point condition before installation. Compare the existing tensioner to part number 38450 to confirm groove count, width, and bore dimensions match the application. For Volkswagen Atlas, Volkswagen Passat, and Audi A3 Quattro fitments, confirm the accessory drive layout before service.

Quality Assurance

Gates is an original equipment system designer, and this DriveAlign tensioner is manufactured to OE-level specifications for fit, form, and function. Part number 38450 is built to rigid tolerances for consistent service performance in the listed applications.