GMB 480-6650 Engine Timing Belt Tensioner

Reliable Engine Timing Belt Tensioner for Audi and Volkswagen

The GMB 480-6650 engine timing belt tensioner is designed to maintain optimal tension on serpentine and V-belts in select Audi and Volkswagen models. Engineered with a durable metal pulley, this tensioner supports smooth belt operation and helps prevent premature wear.

• Compatible with Audi A3, A4, A4 Quattro, S3, TT, TT Quattro and Volkswagen Beetle, Clasico, Golf, Jetta, Passat
• Drive belt pulley diameter: 1 mm
• Single groove pulley designed for serpentine and V-belt systems
• Durable metal pulley construction for long-lasting performance
• Part number 480-6650 for precise replacement and fitment

Product Features and Specifications

This engine timing belt tensioner features a metal pulley with a single groove, compatible with both serpentine and V-belt configurations. The 1 mm pulley diameter ensures proper belt alignment and tension, critical for maintaining engine timing and accessory drive efficiency. The tensioner is engineered to fit a range of Audi and Volkswagen vehicles, including popular models such as the Audi A4 Quattro and Volkswagen Golf.

Application and Common Issues Addressed

• Maintains correct tension on timing and accessory belts to prevent slippage
• Reduces belt noise caused by improper tension
• Prevents premature belt wear and potential engine timing issues
• Helps avoid engine performance problems related to belt misalignment
• Supports smooth operation of serpentine and V-belt systems in specified Audi and Volkswagen models

Installation Notes and Tips

When installing the GMB 480-6650 tensioner, ensure the belt is properly routed according to the vehicle’s service manual. Verify that the pulley groove aligns with the belt type—serpentine or V-belt—to avoid misalignment. Use appropriate tools to apply tension evenly and check for smooth pulley rotation after installation. Regular inspection of belt tension and condition is recommended to maintain optimal engine performance.

Quality Assurance and Warranty

GMB manufactures this engine timing belt tensioner to meet OEM standards for fit and function. The metal pulley construction provides durability under normal operating conditions. While specific warranty details are not provided, GMB parts typically come with a limited warranty covering defects in materials and workmanship. Refer to GMB’s official documentation for complete warranty information.