Gates 39087 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 39087 is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select Audi and Volkswagen 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 accessory drive systems
• Single pulley design with a smooth backside contact surface
• Precision bearing bore inside diameter of 17 mm (.67 in) for accurate fitment
• Outside pulley diameter measures 65 mm (2.56 in) with a width of 23 mm (.91 in)
• OE exact comparison rating for direct replacement applications

Detailed Product Description and Specifications

This accessory drive belt tensioner assembly from Gates features a thermoplastic construction that balances strength and weight for efficient belt tensioning. The single pulley included has a smooth backside contact surface and is not flanged, designed to work seamlessly with V-ribbed belts commonly found in Audi and Volkswagen vehicles. The pulley measures 65 mm in outside diameter and 23 mm in width, with a bearing bore inside diameter of 17 mm (.67 in), ensuring precise alignment and smooth rotation.

The part number 39087 corresponds to this specific tensioner assembly, which is engineered to meet original equipment (OE) specifications. This ensures compatibility and performance consistency for models such as the Audi A3, A3 Quattro, S3, TT, TT Quattro, TTS Quattro, and Volkswagen Beetle, Jetta, Passat, Tiguan, and others listed in the fitment details.

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering OE exact replacement parts that maintain factory performance standards. This product line emphasizes precision engineering and material quality to provide reliable belt tensioning solutions for modern vehicles. The 39087 tensioner assembly is part of this line, designed to integrate seamlessly with the accessory drive belt systems of Audi and Volkswagen models requiring V-ribbed belt compatibility.

Common Applications and Issues Addressed

• Maintains proper tension on accessory drive belts to prevent slippage
• Reduces belt noise caused by improper tension or misalignment
• Prevents premature belt wear and extends belt life
• Ensures smooth operation of engine-driven accessories like alternators and power steering pumps
• Replaces worn or failing tensioners to restore system reliability

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 39087, ensure the correct alignment with the V-ribbed belt and verify the pulley orientation matches the original setup. The thermoplastic material requires careful handling to avoid damage during installation. No mounting holes are present on this tensioner, so it is designed to fit directly into the existing mounting points on compatible Audi and Volkswagen models. Always consult the vehicle’s service manual for torque specifications and installation procedures.

Quality Assurance and Warranty

This Gates tensioner assembly meets OE exact comparison ratings, ensuring it adheres to original equipment standards for fit, form, and function. Gates is known for rigorous quality control processes, providing dependable components for automotive belt systems. While specific warranty details are not provided here, Gates typically offers coverage consistent with industry standards for replacement belt tensioners.