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Your Vehicle 2004 Porsche Cayenne 955 Turbo Sport Utility V8 4.5L

Audi B5 A4/S4 ECS Rear Differential Mount

Your rear differential is the last stop in a spectacular sequence of powerful oscillations, gyrations, and vibrations - all in the pursuit of turning chemical energy into kinetic energy.

This is only possible if the right parts receive the right forces.
It's to this service that engine, transmission, and differential mounts are dedicated - and ECS Tuning engineers some of the best in the world.

The ECS Rear Differential Mount for your B5 is a product of countless hours of research and development, minimizing driveline deflection while maximizing strength.


Different From The Rest

Fits:
Audi B5 A4 1.8T 1996-2001
Audi B5 S4 2.7T 2000-2002

Performance Rear Differential Mount - Audi B5 A4/S4
Increase drivetrain rigidity and response!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 chassis A4/S4 models
Brand: ECS - Corporate Logo
ES#: 2730494
Mfg#: 003248ECS01A

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Availability:
In Stock
On SALE Save 25%
$243.99

This product was last offered at the strikethrough price on
06-13-2026

$182.99 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Performance Snub Mount
Reduce driveline lash with a full polyurethane mount
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 A4/S4
Brand: ECS - Corporate Logo
ES#: 2597993
Mfg#: 001577ECS01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 25%
$78.99

This product was last offered at the strikethrough price on
06-13-2026

$59.24 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Performance Snub Mount
Reduce driveline lash with a full polyurethane mount
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 A4 1.8T models
Brand: ECS - Corporate Logo
ES#: 2597997
Mfg#: 001578ECS01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 25%
$76.99

This product was last offered at the strikethrough price on
06-13-2026

$57.74 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ECS Performance Engine Mount Kit - Audi B5 S4
Performance engine mounts to increase drivetrain rigidity
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4 models
Brand: ECS - Corporate Logo
ES#: 2708159
Mfg#: 000805ECS01AKT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
Ships in 1 day
On SALE
$358.99

This product was last offered at the strikethrough price on
06-13-2026

$341.04 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Complete ECS Performance Engine Mount Kit - Audi B5 S4
Includes ECS performance polyurethane engine mount and snub mount
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4
Brand: ECS - Corporate Logo
ES#: 2723181
Mfg#: 000805ECS03AKT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
Ships in 1 day
On SALE Save 10%
$402.99

This product was last offered at the strikethrough price on
06-13-2026

$362.69 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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