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Audi RS3 8V (2018+) 2.5T

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Audi RS3 8V (2018+) 2.5T Differential Parts

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Rear Differential Service Kit

ES#4164354 - g052145s22KT - Rear Differential Service Kit - Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and a drain/fill plug - Genuine Volkswagen Audi - Audi Volkswagen

Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and a drain/fill plug

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4164354
Mfg#:
G052145S22KT
In Stock
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Build-Your-Own Haldex Service Kit

ES#4173313 - BY0HALDEXGEN5 - Build-Your-Own Haldex Service Kit - Whether you're changing your fluid or replacing your pump, this kit can be configured to suit your needs! - Assembled By ECS - Audi Volkswagen

Whether you're changing your fluid or replacing your pump, this kit can be configured to suit your needs! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4173313
Mfg#:
BY0HALDEXGEN5
Ships in 1-3 days
ON SALE!
Starting at $39.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Build Your Own Rear Differential Service Kit

Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and drain/fill plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4414611
Mfg#:
317011KT2
In Stock
ON SALE!
Starting at $23.47 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

TTRS / RS3 Rear Final Drive Differential Assembly

ES#3707176 - 0CR525010S - TTRS / RS3 Rear Final Drive Differential Assembly - Connecting Drive Shaft to Axle Shafts that allows for varied speeds of wheel rotation. - Genuine Volkswagen Audi - Audi

Connecting Drive Shaft to Axle Shafts that allows for varied speeds of wheel rotation.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3707176
Mfg#:
0CR525010S
Ships in 8 Business Days
11% off MSRP

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

$7807.14

This product was last offered at the strikethrough price on
08-05-2026

$6979.58 USD

Polyurethane Rear Subframe & Rear Differential Mount Insert Kit

ES#3432267 - 019860ECS03-03KT - Polyurethane Rear Subframe & Rear Differential Mount Insert Kit - Enhance driving dynamics and increase drivetrain rigidity and performance with our Rear End Bushing Insert Kit - ECS - Audi Volkswagen

Enhance driving dynamics and increase drivetrain rigidity and performance with our Rear End Bushing Insert Kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3432267
Mfg#:
019860ECS03-03KT
In Stock
ON SALE! SAVE 10%
$265.99

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

$239.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Mount Insert Kit (3 Inserts) - Front and Rear Positions

ES#3221076 - 019797ecs01KT - Rear Differential Mount Insert Kit (3 Inserts) - Front and Rear Positions - Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit - ECS - Audi Volkswagen

Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3221076
Mfg#:
019797ECS01KT
In Stock
ON SALE! SAVE 25%
$191.97

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

$143.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Bevel Box

ES#4142257 - 0CP409053R - Front Bevel Box - Please contact with VIN to verify correct fitment - Genuine Volkswagen Audi - Audi

Please contact with VIN to verify correct fitment Fits from production date 04/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4142257
Mfg#:
0CP409053R
Ships in 7 Business Days
4% off MSRP

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

$4434.99

This product was last offered at the strikethrough price on
08-05-2026

$4246.99 USD
This product is lifetime replacement eligible Lifetime Replacement

WaveTrac Differential - Rear

ES#4620121 - 18.309.190WK - WaveTrac Differential - Rear - Wavetrac is the only gear diff on the market that does not lose all drive when one axle is unloaded. - Wavetrac - Audi

Wavetrac is the only gear diff on the market that does not lose all drive when one axle is unloaded.

Brand:
Wavetrac - Corporate Logo
ES#:
4620121
Mfg#:
18.309.190WK
Ships in 3 Business Days
$1695.00 USD
Free Shipping
on orders $49 and up

Rear Differential Service Kit With Magnetic Plugs

ES#4414610 - 200212KT - Rear Differential Service Kit With Magnetic Plugs - Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and magnetic drain/fill plugs - Assembled By ECS - Audi Volkswagen

Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and magnetic drain/fill plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4414610
Mfg#:
200212KT
In Stock
ON SALE! SAVE 14%
$98.99

This product was last offered at the strikethrough price on
05-02-2026

$85.50 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

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
08-05-2026

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

Haldex Magnetic Drain Plug Kit

ES#4499604 - 034-504-Z019 - Haldex Magnetic Drain Plug Kit - Prevent excessive wear to the internal components of your Haldex system - 034Motorsport - Audi Volkswagen

Prevent excessive wear to the internal components of your Haldex system

Brand:
034Motorsport - Corporate Logo
ES#:
4499604
Mfg#:
034-504-Z019
Back Ordered
Auto Notify
$36.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Rear Differential Drain Plug Kit

ES#4493108 - 034-504-Z021 - Magnetic Rear Differential Drain Plug Kit - Prevent excessive wear to the internal components of your rear differential - 034Motorsport - Audi Volkswagen

Prevent excessive wear to the internal components of your rear differential

Brand:
034Motorsport - Corporate Logo
ES#:
4493108
Mfg#:
034-504-Z021
In Stock
$36.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Low Profile Service Sockets

ES#4464389 - AGA-SS-8-14-K - Hex Low Profile Service Sockets - Due to minimal clearance, its difficult to get a hex socket in the gaps to remove plugs on rear differentials, transfer case and other engine drain/fill plugs. - AGA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Due to minimal clearance, it’s difficult to get a hex socket in the gaps to remove plugs on rear differentials, transfer case and other engine drain/fill plugs.

Brand:
AGA Tools - Corporate Logo
ES#:
4464389
Mfg#:
AGA-SS-8-14-K
Ships in 8 Business Days
$169.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Mount Insert Kit (1 Insert) - Front Position

ES#3432408 - 019797ecs01-01KT - Rear Differential Mount Insert Kit (1 Insert) - Front Position - Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit - ECS - Audi Volkswagen

Launch harder and improve your 0-60 times with our Rear Diff. Mount Insert Kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3432408
Mfg#:
019797ECS01-01KT
In Stock
ON SALE! SAVE 25%
$63.99

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

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit With Magnetic Plugs

ES#4414596 - 317011KT1 - Rear Differential Service Kit With Magnetic Plugs - Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and magnetic drain/fill plugs - Assembled By ECS - Audi Volkswagen

Service kit for your rear differential. One liter of Synthetic Gear Oil 75w90 and magnetic drain/fill plugs 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4414596
Mfg#:
317011KT1
Back Ordered
ON SALE! SAVE 20%
$84.99

This product was last offered at the strikethrough price on
05-02-2026

$67.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

More About Differential Parts

Stock or limited-slip, we stock bearings, repair parts, complete differential units, and approved differential fluids so you can keep sending power to the axles without noise, harshness, or vibration.

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Manufacturer names and/or part numbers are used only for identification purposes.

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