SKU: 45804679033

034Motorsport Transmission/Differential Mount, Density Line, Early Audi To 1996 Track Density - 034-509-4012-TD

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Description

034Motorsport Transmission/Differential Mount, Density Line, Early Audi To 1996 Track Density - 034-509-4012-TD034 Motorsport Transmission Differential Mount, Density Line, B3 Audi 80 90 Coupe Quattro, Audi UrQuattro, Audi 4000 5000, Audi 100 200, and Audi S2 RS2 034 509 4012 TD We're proud to announce the availability of our Density Line Performance Differential Transmission Mounts for most early Audi applications, including the B3 Audi 80 90 Coupe Quattro, Audi UrQuattro, Audi 4000 5000, Audi 100 200, and Audi S2 RS2! 034Motorsport's Density Line Mounts are

034 Motorsport - Transmission/Differential Mount, Density Line, B3 Audi 80/90/Coupe Quattro, Audi UrQuattro, Audi 4000/5000, Audi 100/200, and Audi S2/RS2 - 034-509-4012-TD 

We're proud to announce the availability of our Density Line Performance Differential/Transmission Mounts for most early Audi applications, including the B3 Audi 80/90/Coupe Quattro, Audi UrQuattro, Audi 4000/5000, Audi 100/200, and Audi S2/RS2!

034Motorsport's Density Line Mounts are the new standard in comfort and performance. Our mounts are redesigned with performance in mind, and manufactured from high-durometer rubber for increased performance and durability, without sacrificing comfort. Density Line Mounts are void-free and fluid-free, eliminating the slop associated with the factory mounts.

Street Density:

The Street Density Differential/Transmission Mount is manufactured from 50 durometer rubber, which is approximately 30% stiffer than stock.

The result is greatly reduced drivetrain slop, crisper shifting, and minimal wheel hop, without any significant increase in noise, vibration, or harshness (NVH) inside of the cabin. These mounts are a completely re-engineered performance solution, not just inserts for use with the factory mounts.

Track Density:

The Track Density Differential/Transmission Mount is manufactured from 80 durometer rubber, which is approximately 90% stiffer than stock.

The result is a locked-down drivetrain, solid shifting, and virtually no wheel hop. Track Density Mounts will cause a noticeable increase in noise, vibration, and harshness (NVH) inside of the cabin.

Features:

  • Manufactured from High Durometer Rubber
  • Includes New High-Grade Metric Hardware
  • Reduced Drivetrain Slop
  • Decreased Differential/Transmission Movement Under Load
  • More Direct Power Transfer
  • Improved Shifting Feel
  • Complete Drop-In Replacement of Factory Differential/Transmission Mounts
  • Sold Individually

Fitment:

  • B3 Audi 80/90/Coupe Quattro
  • Audi UrQuattro
  • Audi 4000/5000
  • Audi 100/200
  • Audi S2/RS2
    • Only replaces factory transmission mounts on later B4 chassis vehicles which use the B4/B5 style rear differential mounts.
Replaces: 
  • 857 599 431 / 857599431
  • 431 399 151D / 431399151D
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45804679033

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David Crist
Grantham, US
★★★★★ 5
Top notch quality copper and cold flexibility.
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
This is what you need for most 13.8 Volt power pigtails on portable ham radios. They will safely handle over 200 watts in most applications and the wire is flexible in the cold. I have set it outside as a reality check when it was 18.3F degrees and it flexes essentially the same as at room temperature. The copper itself is very fine strands and will likely never fail from normal use flexing. It solders easily with my 40 watt soldering iron. I will not hesitate to buy more if I need it.
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Reviewed in the United States on February 22, 2025
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John_in_LA
Battle Creek, US
★★★★★ 5
Excellent wire! Flexible and easy to solder.
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
This wire is great! I echo the other reviews indicating that the insulation and wire are very flexible and easy to solder. I have had wire that makes you question your ability to solder. Then there is wire like this that makes it so easy!
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Reviewed in the United States on July 8, 2025
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Allen webber
Carnegie, US
★★★★★ 4
Quality affordable
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
Quality product at a great price.
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Reviewed in the United States on April 4, 2026
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Dylan
Louisville, US
★★★★★ 5
Best wire on Amazon
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
I am convinced that this is some of the best wire on Amazon, if not in general. It's much thicker with more strands inside than other wire labelled as the same AWG. It has much higher quality insulation that can withstand double the temps of the cheaper stuff (big deal if using in engine bay etc.). And even then somehow its supper supple and soft to work with, strips very easily and cleanly. Definitely recommend spending the extra $ to go with BNTECHGO brand for wire. I was very please with both the 12 and 14 AWG wire in 10ft red and black.
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Reviewed in the United States on August 13, 2024
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Mr. G
Alexandria, US
★★★★★ 5
As advertised
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
As advertised
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Reviewed in the United States on May 3, 2026

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