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Audi B7 S4 V8 Differential Parts

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Heavy ShockProof Gear Oil - 1 Gallon

ES#2847972 - 58205 - Heavy ShockProof Gear Oil - 1 Gallon - For heavily-loaded racing differentials and transmissions, problem gearboxes - Redline - Audi BMW Volkswagen Mercedes Benz

For heavily-loaded racing differentials and transmissions, problem gearboxes For Custom Applications Only.

Brand:
Redline - Corporate Logo
ES#:
2847972
Mfg#:
58205
In Stock
$99.99 USD
Free Shipping
on orders $49 and up

Max-Gear Gear Oil 75w90 - 1 Quart

ES#263484 - 01300 - Max-Gear Gear Oil 75w90 - 1 Quart - Max-Gear is recommended for use in front or rear open differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid - Royal Purple - Audi BMW Volkswagen Mercedes Benz Porsche

Max-Gear is recommended for use in front or rear open differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid

Brand:
Royal Purple - Corporate Logo
ES#:
263484
Mfg#:
01300
In Stock
Limited Qty Sale
$22.99

This product was last offered at the strikethrough price on
09-28-2026

$21.99 USD
Free Shipping
on orders $49 and up

Axle Flange Seal - Priced Each

ES#2804107 - 016409399B - Axle Flange Seal - Priced Each - Fits the left and right side - Elring - Audi Volkswagen

Fits the left and right side 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2804107
Mfg#:
016409399B
In Stock
$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Mount

ES#2975894 - 8E0599125K - Rear Differential Mount - Used to secure the rear differential to the subframe - Hamburg Tech - Audi

Used to secure the rear differential to the subframe We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2975894
Mfg#:
8E0599125K
Ships in 2 Business Days
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing - Priced Each

ES#1357033 - 01X409123 - Tapered Roller Bearing - Priced Each - Keep your differential free from noise - 50x80x20 - Genuine Porsche - Audi Porsche

Keep your differential free from noise - 50x80x20

Brand:
Genuine Porsche - Corporate Logo
ES#:
1357033
Mfg#:
01X409123
Ships in 4 Business Days
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#2678603 - N10037106KT3 - Rear Differential Service Kit - Complete kit with Genuine Audi 75w90 fluid to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with Genuine Audi 75w90 fluid to service your rear differential

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678603
Mfg#:
N10037106KT3
Ships in 1-2 days
$215.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Axle Flange Seal - Priced Each

ES#266849 - 016409399B - Axle Flange Seal - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi Volkswagen

Fits the left and right side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
266849
Mfg#:
016409399B
Ships in 5 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.

$61.99

This product was last offered at the strikethrough price on
09-28-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Cross Member Bushings - Priced Each

ES#437306 - 8E0599257K - Rear Differential Cross Member Bushings - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi

Fits the left and right side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437306
Mfg#:
8E0599257K
Ships in 3 Business 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.

$51.99

This product was last offered at the strikethrough price on
08-31-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing

ES#267217 - 01E409123 - Tapered Roller Bearing - Keep your differential free from noise - Genuine Volkswagen Audi - Audi

Keep your differential free from noise Fits right side only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
267217
Mfg#:
01E409123
Ships on Oct 14, 2026
7% off MSRP

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

$148.99

This product was last offered at the strikethrough price on
08-31-2026

$137.99 USD
Free Shipping
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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2538236
Mfg#:
016409399BKT
Back Ordered
ON SALE!
$110.99

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

$109.68 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Plug With Seal - Priced Each

ES#268084 - 01V409057 - Plug With Seal - Priced Each - Install new hardware when performing service. M18x1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware when performing service. M18x1.5 Automatic transmission vehicles only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
268084
Mfg#:
01V409057
In Stock
12% off MSRP

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

$40.99

This product was last offered at the strikethrough price on
09-28-2026

$35.99 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
272823
Mfg#:
02X409400A
Ships in 3 Business 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.

$118.99

This product was last offered at the strikethrough price on
08-31-2026

$106.99 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3640337
Mfg#:
0AR525275A
Ships in 1-2 days
13% 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
08-31-2026

$34.99 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!

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

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
288261
Mfg#:
09E409399A
Ships in 1 Business Day
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

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 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2622570
Mfg#:
016409399B
Ships in 2 Business Days
$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

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.

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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