Rein AVT0021R Manual Transmission Mount - Left or Right

OE Quality Transmission Mount

The Rein AVT0021R transmission mount is an application-specific OE-quality replacement for select Audi and Volkswagen manual transmission applications. Built to match original equipment design and function, it helps reduce vibration and noise transfer through the drivetrain.

Compatible with 1998-2008 Audi A4, A4 Quattro, A6, A6 Quattro, S4, Allroad Quattro, and 2001-2004 Volkswagen Passat applications, this mount is engineered for direct-fit service where OE-style performance matters. The Rein AVT0021R is produced by an original equipment supplier and built to strict material and tolerance standards.

• Application-specific manual transmission mount for OE-style fit and function
• Hydraulic or rubber-to-metal construction based on original equipment design
• Rubber hardness matched to the OE mount for consistent performance and service life
• High corrosion resistance for long-term durability
• Manufactured to engineering specifications for material quality and dimensional accuracy

Detailed Product Overview

This Rein transmission mount is made to control drivetrain movement and isolate vibration harmonics from the engine and transmission. By matching the original mount’s form, fit, and function, the AVT0021R supports smoother operation and helps restore the factory feel in Audi A4 Quattro, Audi A6 Quattro, and Volkswagen Passat manual transmission setups. This part cross-references OE-style part numbers 4B0399151K and 8E0399151D for the same application.

What It Helps Address

• Excess vibration felt through the cabin during acceleration or idle
• Transmission movement caused by worn or collapsed mount material
• Noise transfer from the drivetrain into the vehicle body
• Harsh engagement feel associated with deteriorated mount support
• Corrosion-related mount degradation in exposed underbody locations

Installation Notes and Tips

Verify year, model, drivetrain, and position before ordering, since fitment varies by vehicle and VIN breakpoints. Confirm whether the application calls for left, right, or non-position-specific mounting. Inspect adjacent drivetrain mounts and bushings during replacement so worn components do not continue to transmit vibration after installation.

Quality Assurance

Rein Automotive anti-vibration parts are application specific and built to match OE design intent. The AVT0021R is manufactured by an original equipment supplier and produced to strict engineering standards for materials, tolerances, and corrosion resistance.

• Fits 1998 Audi A6 Quattro, left
• Fits 1999 Audi A4, N/A
• Fits 1999 Audi A4 Quattro, N/A
• Fits 1999-2000 Audi A6 Quattro, left
• Fits 2000-2001 Audi A4, N/A
• Fits 2000-2002 Audi S4, N/A
• Fits 2000-2002 Audi S4, left
• Fits 2000 Audi A6, N/A
• Fits 2000-2004 Audi A6 Quattro, N/A
• Fits 2000 Audi A6 Quattro, right
• Fits 2001-2004 Audi Allroad Quattro, N/A
• Fits 2001-2005 Audi A4 Quattro, N/A
• Fits 2001-2004 Audi A6, N/A
• Fits 2001 Volkswagen Passat, left
• Fits 2002 Audi A4 Quattro, N/A
• Fits 2002 Volkswagen Passat, left
• Fits 2002-2004 Volkswagen Passat, N/A
• Fits 2005-2008 Audi A4 Quattro, N/A