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Audi S4 Differential Parts

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Axle Flange Seal - Right

ES#268105 - 01V409399 - Axle Flange Seal - Right - Seals the connection between the axle flange and transmission - Genuine Volkswagen Audi - Audi Volkswagen

Seals the connection between the axle flange and transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
268105
Mfg#:
01V409399
Ships in 1-2 days
7% off MSRP

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

$133.99

This product was last offered at the strikethrough price on
06-05-2026

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Axle Flange Seal - Right

ES#288261 - 09E409399A - Axle Flange Seal - Right - Stop leaks from your differential - Genuine Volkswagen Audi - Audi

Stop leaks from your differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
288261
Mfg#:
09E409399A
In Stock at Vendor
5% off MSRP

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

$63.99

This product was last offered at the strikethrough price on
05-07-2026

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Flange Seal

ES#272823 - 02X409400A - Driveshaft Flange Seal - Seals the propeller shaft flange to the front differential - Genuine Volkswagen Audi - Audi

Seals the propeller shaft flange to the front differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
272823
Mfg#:
02X409400A
Ships in 1-2 days
8% off MSRP

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

$118.99

This product was last offered at the strikethrough price on
06-05-2026

$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SEAL

ES#3640337 - 0AR525275A - SEAL - Genuine Volkswagen Audi - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3640337
Mfg#:
0AR525275A
Ships in 1-2 days
10% off MSRP

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

$39.99

This product was last offered at the strikethrough price on
06-05-2026

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing

ES#290474 - 113517185B - Tapered Roller Bearing - Keep your differential free from noise - Genuine Volkswagen Audi - Audi Volkswagen

Keep your differential free from noise affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits left side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
290474
Mfg#:
113517185B
Ships in 4 Business Days
6% off MSRP

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

$109.99

This product was last offered at the strikethrough price on
06-05-2026

$102.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

ES#260073 - N0147236 - Allen Bolt - Priced Each - Install new hardware with your new parts. M10x30 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10x30 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the input flange shaft housing to the differential

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
260073
Mfg#:
N0147236
Ships in 1-2 days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Axle Flange Seal - Left

ES#5812 - 01L409399 - Axle Flange Seal - Left - Seals the connection between the axle flange and transmission - Genuine Volkswagen Audi - Audi Volkswagen

Seals the connection between the axle flange and transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5812
Mfg#:
01L409399
Ships in 1-2 days
7% off MSRP

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

$104.99

This product was last offered at the strikethrough price on
06-05-2026

$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Axle Flange Seal - Left

ES#2951334 - 01L409399 - Axle Flange Seal - Left - Seals the connection between the axle flange and transmission - SKF - Audi Volkswagen

Seals the connection between the axle flange and transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SKF - Corporate Logo
ES#:
2951334
Mfg#:
01L409399
In Stock at Vendor
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plug

ES#2538236 - 016409399BKT - Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plug - Complete kit with Motul Gear 300 fluid to service your rear differential - Assembled By ECS - Audi Volkswagen

Complete kit with Motul Gear 300 fluid to service your rear differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2538236
Mfg#:
016409399BKT
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 14%
$110.99

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

$95.04 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Front Axle Flange Seal - Right

ES#3464834 - 0B4409400D - Front Axle Flange Seal - Right - Seals the connection between the axle flange and transmission - Corteco - Audi

Seals the connection between the axle flange and transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Corteco - Corporate Logo
ES#:
3464834
Mfg#:
0B4409400D
In Stock
$10.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Lower Mount Bushing

ES#450896 - 8K0599381G - Rear Differential Lower Mount Bushing - Located under the rear differential towards the front - Genuine Volkswagen Audi - Audi

Located under the rear differential towards the front affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to production date 4/27/2009

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450896
Mfg#:
8K0599381G
Ships in 8 Business Days
9% off MSRP

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

$93.99

This product was last offered at the strikethrough price on
06-05-2026

$85.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Propeller Shaft Gasket

ES#3287255 - 95B521142 - Propeller Shaft Gasket - Located between the driveshaft and the front & rear differentials - Genuine Porsche - Audi Porsche

Located between the driveshaft and the front & rear differentials affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
3287255
Mfg#:
95B521142
Ships in 2 Business Days
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Axle Flange Seal - Priced Each

ES#2622570 - 016409399B - Axle Flange Seal - Priced Each - Fits the left and right side - Rein - Audi Volkswagen

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2622570
Mfg#:
016409399B
Ships in 1 Business Day
$8.99

This product was last offered at the strikethrough price on
04-08-2026

$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing - Priced Each

ES#4352288 - 01X409123 - Tapered Roller Bearing - Priced Each - Keep your differential free from noise - 50x80x20 - Timken - Audi Porsche

Keep your differential free from noise - 50x80x20 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmissions only

Brand:
Timken - Corporate Logo
ES#:
4352288
Mfg#:
01X409123
In Stock
Limited Qty Sale
$28.99

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

$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Flange Seal

ES#4067259 - 09E409399 - Driveshaft Flange Seal - Seals the propeller shaft flange to the front differential - ZF - Audi

Seals the propeller shaft flange to the front differential We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ZF - Corporate Logo
ES#:
4067259
Mfg#:
09E409399
Ships in 1-2 days
$24.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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.

Let us help you find the parts that fit your Audi

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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