GMB 480-3324 Engine Timing Belt Tensioner Hydraulic Assembly

Engine Timing Belt Tensioner for Audi and VW

GMB 480-3324 is an engine timing belt tensioner hydraulic assembly built to meet or exceed OEM specifications. It is a direct-fit replacement for select Audi and Volkswagen applications that use a serpentine and V-belt pulley setup with a metal pulley.

• Hydraulic timing belt tensioner assembly for engine valve train service
• Metal pulley construction for durability in demanding engine environments
• Serpentine and V-belt pulley type
• Single-groove pulley design
• OE-style fitment for select Audi A8 Quattro, A6 Quattro, S6, S8, RS6, Volkswagen Phaeton, and Volkswagen Touareg applications

Detailed Product Overview

This GMB timing belt tensioner hydraulic assembly is engineered for vehicles that require stable belt tension and accurate timing belt control. Part number 480-3324 is used in select 2000-2007 Audi A8 Quattro and A6 Quattro applications, plus Audi S6, S8, and RS6 models, along with 2004-2006 Volkswagen Phaeton and Touareg models. For 2000 Audi A8 Quattro and 2000 Audi A6 Quattro, fitment applies from VIN 4DY016501.

This part cross-references Dayco 85031 and Gates T43032 for the same application. It is also referenced under 4803324 and 077109479D.

What This Part Helps Address

• Timing belt slack that can affect engine synchronization
• Noise from a worn or weakened tensioner assembly
• Irregular belt tracking in the timing system
• Service replacement for aging hydraulic tensioner components
• Fitment issues when replacing an OE-style Audi or Volkswagen tensioner

Installation Notes and Tips

Verify engine code and VIN-specific fitment before installation, especially on 2000 Audi A6 Quattro and A8 Quattro models from VIN 4DY016501. Inspect the timing belt system, pulleys, and related wear components during service, and confirm the pulley type matches the original application before assembly.

Quality Assurance

GMB manufactures this part to meet or exceed OEM specifications, supporting consistent fit and function for the listed Audi and Volkswagen applications.