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Audi A4 Rear Differential Parts

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Motul Gear 300 Manual Transmission / Differential Fluid (75w-90) - 1 Liter

ES#261741 - 317811 - Motul Gear 300 Manual Transmission / Differential Fluid (75w-90) - 1 Liter - Fully synthetic GL-4 / GL-5 gear oil, designed for high performance use - Motul - Audi BMW Volkswagen MINI Porsche

Fully synthetic GL-4 / GL-5 gear oil, designed for high performance use

Brand:
Motul - Corporate Logo
ES#:
261741
Mfg#:
317811
In Stock
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$37.85

This product was last offered at the strikethrough price on
07-18-2026

$34.06 USD
Free Shipping
on orders $49 and up

Complete Rear Differential Mount Insert Kit

ES#2992521 - 008288ecs01KT - Complete Rear Differential Mount Insert Kit - Increase drivetrain rigidity and response! - ECS - Audi Porsche

Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992521
Mfg#:
008288ECS01KT
In Stock
ON SALE! SAVE 25%
$196.99

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

$147.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Drivetrain Mount Insert Kit - Audi B8 A4/S4/Q5

ES#3097986 - 008288ecs01KT1 - Complete Drivetrain Mount Insert Kit - Audi B8 A4/S4/Q5 - Decrease slop; Increase drivetrain rigidity and response! - ECS - Audi
ECS Tuning recommends this product.

Decrease slop; Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3097986
Mfg#:
008288ECS01KT1
In Stock
ON SALE! SAVE 25%
$313.99

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

$235.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Synthetic Gear Oil 75w90 - 1 Liter

ES#4766 - G052145S2 - Synthetic Gear Oil 75w90 - 1 Liter - Keep your gears quiet and smooth with new fluid - Genuine Volkswagen Audi - Audi Volkswagen

Keep your gears quiet and smooth with new fluid

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4766
Mfg#:
G052145S2
In Stock
$35.79 USD
Free Shipping
on orders $49 and up

Magnetic Drain/Fill Plug - Priced Each

ES#2538104 - 000857ECS01A - Magnetic Drain/Fill Plug - Priced Each - Capture harmful particles to prevent wear. M22x1.5 - ECS - Audi Volkswagen Porsche

Capture harmful particles to prevent wear. M22x1.5 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2538104
Mfg#:
000857ECS01A
Ships on Oct 5, 2026
Auto Notify
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drivetrain Mounts Insert Package

ES#2975804 - 034-509-6000 - Drivetrain Mounts Insert Package - Complete mount insert set - 034Motorsport - Audi

Complete mount insert set

Brand:
034Motorsport - Corporate Logo
ES#:
2975804
Mfg#:
034-509-6000
In Stock
ON SALE! SAVE 10%
$294.00

This product was last offered at the strikethrough price on
06-28-2026

$264.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Differential Mount - Audi B5 A4/S4

ES#2730494 - 003248ECS01A - Performance Rear Differential Mount - Audi B5 A4/S4 - Increase drivetrain rigidity and response! - ECS - Audi

Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2730494
Mfg#:
003248ECS01A
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
This product is lifetime replacement eligible Lifetime Replacement

Front Position Rear Differential Mount Insert Kit

ES#2992519 - 008288ECS01 - Front Position Rear Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992519
Mfg#:
008288ECS01
In Stock
ON SALE! SAVE 25%
$95.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Bushing Differential Mount Insert Kit

ES#2992520 - 008288ECS02 - Rear Bushing Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992520
Mfg#:
008288ECS02
In Stock
ON SALE! SAVE 25%
$115.99

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

$86.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Differential Mount Insert Kit

ES#3509529 - 034-505-2020 - Billet Aluminum Rear Differential Mount Insert Kit - Limits movement of factory rear diff mounts, increasing drivetrain rigidity and response! - 034Motorsport - Audi

Limits movement of factory rear diff mounts, increasing drivetrain rigidity and response!

Brand:
034Motorsport - Corporate Logo
ES#:
3509529
Mfg#:
034-505-2020
In Stock
ON SALE! SAVE 10%
$154.00

This product was last offered at the strikethrough price on
06-28-2026

$138.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stainless Steel Magnetic Drain/Fill Plug - Priced Each

ES#2992215 - 010974ECS01 - Stainless Steel Magnetic Drain/Fill Plug - Priced Each - Capture harmful particles to prevent wear. M10x1x10 - ECS - Audi Volkswagen

Capture harmful particles to prevent wear. M10x1x10 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with Torque Vectoring rear differentials

Brand:
ECS - Corporate Logo
ES#:
2992215
Mfg#:
010974ECS01
In Stock
ON SALE! SAVE 25%
$35.99

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

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Differential Mount - Audi B6/B7 A4/S4

ES#2717984 - 003249ECS01 - Performance Rear Differential Mount - Audi B6/B7 A4/S4 - Increase drivetrain rigidity and response! - ECS - Audi

Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2717984
Mfg#:
003249ECS01
In Stock
ON SALE!
$235.99

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

$228.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4620706 - G055190A2-2KT - Rear Differential Service Kit - Complete kit with Genuine fluids and drain plugs to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with Genuine fluids and drain plugs to service your rear differential

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4620706
Mfg#:
G055190A2-2KT
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Drain/Fill Plug - Priced Each

ES#469442 - N90281802 - Drain/Fill Plug - Priced Each - Commonly found as a drain or fill plug. M10x1x10 - Genuine Volkswagen Audi - Audi Volkswagen

Commonly found as a drain or fill plug. M10x1x10 For vehicles with Torque Vectoring rear differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469442
Mfg#:
N90281802
In Stock
25% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$3.99

This product was last offered at the strikethrough price on
07-18-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MoS2 Anti Friction Additive For Manual Transmission / Differential

ES#261605 - 2019 - MoS2 Anti Friction Additive For Manual Transmission / Differential - Increase the life of your gear oil, and decrease gearbox noise - Liqui-Moly - Audi BMW Volkswagen Porsche

Increase the life of your gear oil, and decrease gearbox noise 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
261605
Mfg#:
2019
In Stock
45% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$21.95

This product was last offered at the strikethrough price on
07-18-2026

$11.99 USD
Free Shipping
on orders $49 and up

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