Gates 38423 Accessory Drive Belt Tensioner Assembly - Alternator and Air Conditioning

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38423 is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select Audi models, this thermoplastic tensioner assembly ensures consistent belt performance and longevity.

• Constructed from durable thermoplastic material for reliable operation
• Compatible with V-ribbed belt types used in Audi A4, A5, A6, Q5, S4, and S5 models
• Features a single pulley with a smooth backside contact surface
• Outside diameter measures 76 mm (2.99 inches) with a width of 26 mm (1.02 inches)
• Includes one mounting hole and a bearing bore inside diameter of 17 mm (0.67 inches)
• OE comparison rating ensures original equipment performance standards

Product Line Details: DriveAlign Premium OE Automatic Belt Tensioner

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering tensioner assemblies that meet or exceed original equipment specifications. This product line emphasizes precise fitment and durable materials, making it suitable for maintaining proper accessory belt tension in modern vehicles. The 38423 tensioner assembly is part of this line, providing a reliable replacement option for Audi vehicles requiring a V-ribbed belt tensioner.

Technical Description and Specifications

This accessory drive belt tensioner assembly is designed with a thermoplastic body that offers resistance to wear and environmental factors. The single pulley included is not flanged and has a smooth backside contact surface to reduce belt wear. The tensioner’s outside diameter is 76 mm (2.99 inches), and it has a width of 26 mm (1.02 inches), dimensions that align with the original equipment for compatible Audi models. The bearing bore inside diameter is 17 mm (0.67 inches), ensuring proper fitment and smooth rotation. The assembly includes one mounting hole for secure installation.

Compatible Vehicles and Common Applications

• Compatible with Audi A4 and A4 Quattro models
• Fits Audi A5 and A5 Quattro vehicles
• Suitable for Audi A6 and A6 Quattro
• Designed for Audi Q5, S4, and S5 models

Common Issues Addressed by This Belt Tensioner

• Eliminates belt slippage caused by improper tension
• Prevents premature belt wear and cracking
• Reduces noise from loose or misaligned belts
• Maintains consistent accessory drive system performance
• Helps avoid engine overheating due to belt failure

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 38423, ensure the mounting hole aligns precisely with the vehicle’s bracket. Verify the belt type is V-ribbed and matches the tensioner specifications. Use proper torque settings to avoid over-tightening, which can damage the tensioner or pulley. Inspect the accessory belt for wear and replace if necessary during installation.

Quality Assurance and Warranty

This tensioner assembly meets original equipment performance standards, providing reliable operation for the specified Audi models. Gates backs the DriveAlign Premium OE Automatic Belt Tensioner line with quality control measures to ensure durability and fitment accuracy. Warranty details should be confirmed with the product documentation or manufacturer.