034Motorsport Street Density Transmission Mount for Audi A4, A4 Quattro, S4, and RS4 Six-Speed Manual (2002–2009)

The 034Motorsport Street Density Transmission Mount is a solid rubber mount that secures the six-speed manual gearbox in B6 and B7 Audi A4, A4 Quattro, S4, and RS4 models to the chassis. A transmission mount carries the gearbox weight, keeps the drivetrain aligned, and keeps vibration and noise from reaching the cabin. This mount uses 50 durometer rubber, about 10 percent stiffer than stock. Because the body has no voids or air pockets, 034Motorsport rates the reduction in drivetrain movement at about 25 percent, while the car still rides smoothly and quietly. An OE supplier builds it to 034Motorsport's specification, and it is made in the United States.

034Motorsport covers this mount with a 24-month warranty.

This is a 034Motorsport design. It is neither a factory Audi mount nor an RS4 mount used on other models, and the company sells it only under its own name. It belongs to the Street Density line, which aims for comfortable daily driving with a noticeable gain in drivetrain damping over stock mounts. 034Motorsport developed and tested it for the 6-MT B6/B7 platform before release. The company was founded by Javad Shadzi in 2005 and builds performance parts for Audi and Volkswagen. Engineering, manufacturing, and tuning all happen at its Performance Facility in Fremont, California.

Technical Details

• Manufacturer: 034Motorsport
• Part number: 034-509-4001-SD
• Product line: Street Density
• Application: B6/B7 six-speed manual transmission
• Construction: solid rubber, 50 durometer, no voids
• Stiffness: about 10 percent harder than stock
• Drivetrain movement reduction: about 25 percent
• Made in the United States
• Warranty: 24 months

Common Questions

What are the signs of a worn transmission mount?
Look for extra vibration in the cabin or shifter, clunking when you shift, accelerate, or lift off, and a shifter that feels out of place or shifts roughly.

Will a stiffer mount make the car harsh?
034Motorsport says the Street Density mount still rides smoothly and quietly while damping drivetrain movement better than stock.

Is this a factory Audi part?
No. An OE supplier makes it to 034Motorsport's specification.

PMB Performance sells 034Motorsport drivetrain parts for Audi owners.

Fitment & Compatibility

Check the fitment table below for your model and year. Make sure your car has the six-speed manual transmission. PMB can confirm fit by VIN.