GMB 480-6430 Engine Timing Belt Idler

Engine Timing Belt Idler for Audi and Volkswagen

The GMB 480-6430 engine timing belt idler is built for precise belt routing in select Audi and Volkswagen applications. Manufactured to meet or exceed OEM specifications, it supports stable timing belt operation in vehicles such as the Audi 4000, Audi Quattro, and Volkswagen Quantum.

Key Features

• Engine timing belt idler for valve train service
• Metal pulley construction for durability
• 1-groove pulley design
• Serpentine and V-belt pulley/belt type
• Built to meet or exceed OEM specifications
• Part number: 480-6430

Detailed Description

GMB 480-6430 is an engine timing belt idler designed for select Audi and Volkswagen models from 1980 through 1989. This component helps maintain proper belt alignment and consistent routing in timing belt-driven engine systems. It is a direct-fit style replacement for applications including the Audi 100, 100 Quattro, 200, 200 Quattro, 80 Quattro, 90, 90 Quattro, 5000 Quattro, 4000 Quattro, Coupe, Quattro, and Volkswagen Quantum. The metal pulley construction and OEM-level specification target dependable service in demanding engine environments. This part number, 480-6430, also cross-references ACI 84114 and Gates T41174 for the same application.

What It Helps Address

• Timing belt noise caused by worn pulley surfaces
• Belt tracking issues from a damaged idler pulley
• Uneven belt wear in high-mileage engine systems
• Loss of proper belt tension path in timing service
• Service replacement for worn Audi and Volkswagen timing components

Installation Notes and Tips

Verify engine code and belt routing before installation. Inspect the timing belt, tensioner, and adjacent pulleys during service, since wear in one component can affect the rest of the system. Confirm fitment for your specific Audi 4000, Audi Quattro, or Volkswagen Quantum application using the vehicle year and engine configuration.

Quality Assurance

GMB manufactures this idler to meet or exceed OEM specifications for fit and function. Use the part number 480-6430 to confirm application details before ordering.