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Audi B8/B8.5 A4 Quattro V6 3.2L

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Audi B8/B8.5 A4 Quattro V6 3.2L 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Custom Applications Only.

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

Axle Flange Seal - Priced Each

ES#3464831 - 0AR409399B - Axle Flange Seal - Priced Each - Fits the left & right side - Corteco - Audi

Fits the left & right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Seals the left & right rear axle flange for vehicle with basic differentials

Brand:
Corteco - Corporate Logo
ES#:
3464831
Mfg#:
0AR409399B
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Diff Rear Bushing Inserts - Street

ES#4869773 - PFR3-743 - Rear Diff Rear Bushing Inserts - Street - A performance insert with an increased stiffness - Powerflex - Audi

A performance insert with an increased stiffness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
4869773
Mfg#:
PFR3-743
Ships in 1 Business Day
$85.99 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 Plugs

ES#2593489 - 0AR409399BKT1 - Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plugs - Complete kit with Redline 75w90 GL-5 fluid to service your rear differential - Assembled By ECS - Audi

Complete kit with Redline 75w90 GL-5 fluid to service your rear differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Torque Vectoring differentials

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593489
Mfg#:
0AR409399BKT1
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 23%
$128.65

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

$98.96 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Axle Flange Seal - Priced Each

ES#1894525 - 0AR409399B - Axle Flange Seal - Priced Each - Fits the left & right side - Genuine Volkswagen Audi - Audi

Fits the left & right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Seals the left & right rear axle flange for vehicle with basic differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1894525
Mfg#:
0AR409399B
In Stock
24% off MSRP

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

$34.18

This product was last offered at the strikethrough price on
06-04-2026

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

Rear Differential Leak Repair Kit

ES#2593503 - 02D525596BKT - Rear Differential Leak Repair Kit - Complete kit with OE fluid to service your rear differential - Genuine Volkswagen Audi - Audi Volkswagen

Complete kit with OE fluid to service your rear differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with Torque Vectoring differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593503
Mfg#:
02D525596BKT
Ships in 1-2 days
$259.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Axle Flange Seal - Priced Each

ES#2707342 - 02D525596F - Axle Flange Seal - Priced Each - Stop leaks from your differential - Genuine Volkswagen Audi - Audi Volkswagen

Stop leaks from your differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits the left & right side for vehicles with Torque Vectoring differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2707342
Mfg#:
02D525596F
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.

$116.99

This product was last offered at the strikethrough price on
02-26-2026

$108.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing - Priced Each

ES#4841529 - 002517185K - Tapered Roller Bearing - Priced Each - Keep your differential free from noise - 46x75x18 - Genuine Volkswagen Audi - Audi Volkswagen

Keep your differential free from noise - 46x75x18 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmission vehicles only up to production date 8/15/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4841529
Mfg#:
002517185K
Ships in 1-2 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
02-26-2026

$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tapered Roller Bearing - Priced Each

ES#4680245 - 002517185M - Tapered Roller Bearing - Priced Each - Keep your differential free from noise - 46x75x18 - NTN - Audi Volkswagen

Keep your differential free from noise - 46x75x18 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmission vehicles only up to production date 8/15/2011

Brand:
NTN - Corporate Logo
ES#:
4680245
Mfg#:
002517185M
Ships in 1-2 days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Lower Mount Bushing Insert - Street

ES#4869768 - PFR3-741 - Rear Differential Lower Mount Bushing Insert - Street - This is an insert to fit into the original bushing to minimize the movement of the diff under acceleration. - Powerflex - Audi

This is an insert to fit into the original bushing to minimize the movement of the diff under acceleration. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 4/28/2009

Brand:
Powerflex - Corporate Logo
ES#:
4869768
Mfg#:
PFR3-741
Ships in 1 Business Day
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Automatic transmission vehicles only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
268084
Mfg#:
01V409057
Ships Today
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
02-04-2026

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

Drain/Fill Plug - Priced Each

ES#4688635 - N90281802 - Drain/Fill Plug - Priced Each - Commonly found as a drain or fill plug. M10x1x10 - Bremmen Parts - Audi Volkswagen

Commonly found as a drain or fill plug. M10x1x10 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with Torque Vectoring rear differentials

Brand:
Bremmen Parts - Corporate Logo
ES#:
4688635
Mfg#:
N90281802
In Stock
ON SALE! SAVE 49%
$4.89

This product was last offered at the strikethrough price on
12-15-2025

$2.51 USD
Free Shipping
on orders $49 and up

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
Seals the right side axle flange for vehicles with 6-Speed manual transmission

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 9 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
02-26-2026

$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

Tapered Roller Bearing - Priced Each

ES#3023258 - 002517185M - Tapered Roller Bearing - Priced Each - Keep your differential free from noise - 46x75x18 - SKF - Audi Volkswagen Porsche

Keep your differential free from noise - 46x75x18 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmission vehicles only up to production date 8/15/2011

Brand:
SKF - Corporate Logo
ES#:
3023258
Mfg#:
002517185M
Back Ordered
$33.99

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

$32.99 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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