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GMB 480-6390 Engine Timing Belt Tensioner Pulley
Engine Timing Belt Tensioner Pulley for Audi and VW
GMB 480-6390 is an engine timing belt tensioner pulley built to meet or exceed OEM specifications. It is a metal pulley with a single groove and a serpentine & V-belt profile, made for precise belt routing in select Audi and Volkswagen applications.
Key Features
- Engine timing belt tensioner pulley for valve train service
- Metal pulley construction for durability
- Single-groove design
- Serpentine & V-belt pulley type
- Built to meet or exceed OEM specifications
- Part number: 480-6390
Detailed Description
This GMB timing belt tensioner pulley is engineered for direct replacement service on select Audi A6 Quattro, Audi A8 Quattro, Audi S6, Audi S8, Audi RS6, Volkswagen Phaeton, and Volkswagen Touareg models. The 480-6390 pulley is designed for consistent belt tracking and proper tensioner operation in engine timing belt systems, helping maintain stable accessory and valve train drive performance. This part cross-references Gates T41098 for the same application.
Compatible With 2001-2007 Audi A8 Quattro, 2004-2006 Volkswagen Phaeton, 2004-2006 Volkswagen Touareg, 2001-2004 Audi A6 Quattro, 2003-2004 Audi RS6, 2001-2004 Audi S6, 2001-2003 Audi S8, and 2000 Audi A6 Quattro and Audi A8 Quattro from VIN 4DY016501.
What This Part Helps Address
- Timing belt noise caused by a worn pulley bearing
- Uneven belt tracking in the tensioner assembly
- Loss of proper belt tension control
- Premature wear on the timing belt system
- Drive belt vibration in supported Audi and Volkswagen engines
Installation Notes and Tips
Verify engine code, VIN breakpoints, and belt routing before installation. Replace the pulley only after confirming the timing belt system condition, and inspect adjacent components for wear, contamination, or bearing roughness. For 2000 Audi A6 Quattro and A8 Quattro applications, confirm fitment from VIN 4DY016501.
Quality Assurance
GMB manufactures this pulley to meet or exceed OEM specifications, supporting OE-style fitment and performance expectations for Audi and Volkswagen timing belt service. Part number 480-6390 is built for application-specific replacement use.
| Brand | GMB |
| Part Number | 480-6390 |
| Drive Belt Pulley Diameter (1) (mm) | 1 |
| Pulley / Belt Type | Serpentine & v-belt |
| Pulley Groove Quantity (1) | 1 |
| Pulley Material (1) | Metal |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2006 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2006 | Volkswagen | Phaeton | 4.2L | V8 | N/A | |
| 2006 | Volkswagen | Touareg | 4.2L | V8 | N/A | |
| 2005 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2005 | Volkswagen | Phaeton | 4.2L | V8 | N/A | |
| 2005 | Volkswagen | Touareg | 4.2L | V8 | N/A | |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | N/A | |
| 2004 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2004 | Audi | RS6 | 4.2L | V8 | N/A | |
| 2004 | Audi | S6 | 4.2L | V8 | N/A | |
| 2004 | Volkswagen | Phaeton | 4.2L | V8 | N/A | |
| 2004 | Volkswagen | Touareg | 4.2L | V8 | N/A | |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | N/A | |
| 2003 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2003 | Audi | RS6 | 4.2L | V8 | N/A | |
| 2003 | Audi | S6 | 4.2L | V8 | N/A | |
| 2003 | Audi | S8 | 4.2L | V8 | N/A | |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | N/A | |
| 2002 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2002 | Audi | S6 | 4.2L | V8 | N/A | |
| 2002 | Audi | S8 | 4.2L | V8 | N/A | |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | N/A | |
| 2001 | Audi | A8 Quattro | 4.2L | V8 | N/A | |
| 2001 | Audi | S6 | 4.2L | V8 | N/A | |
| 2001 | Audi | S8 | 4.2L | V8 | N/A | |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | N/A | From VIN 4DY016501 |
| 2000 | Audi | A8 Quattro | 4.2L | V8 | N/A | From VIN 4DY016501 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.