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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 Rear Differential Parts

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Rear Differential Service Kit - With Service Tools

ES#4361552 - N90281802KTKT4 - Rear Differential Service Kit - With Service Tools - Complete kit with Redline 75w90 fluid with ECS stainless steel magnetic plugs and seals to service your rear differential. - Assembled By ECS - Audi Volkswagen

Complete kit with Redline 75w90 fluid with ECS stainless steel magnetic plugs and seals 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 with Torque Vectoring differentials

Brand:
Assembled By ECS - Corporate Logo
ES#:
4361552
Mfg#:
N90281802KTKT4
Ships on Jun 30, 2026
ON SALE! SAVE 12%
$161.99

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

$142.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Axle Flange Seal - Priced Each

ES#3450009 - 02D525596F - Axle Flange Seal - Priced Each - Stop leaks from your differential - Corteco - 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:
Corteco - Corporate Logo
ES#:
3450009
Mfg#:
02D525596F
In Stock
$12.99

This product was last offered at the strikethrough price on
04-24-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fill & Drain Plug (M16x1.5)

ES#288792 - 0AA409057 - Fill & Drain Plug (M16x1.5) - Differential fill & drain plug - Genuine Volkswagen Audi - Audi Volkswagen

Differential fill & drain plug affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For automatic transmission vehicles without Torque Vectoring differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
288792
Mfg#:
0AA409057
In Stock
37% off MSRP

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

$37.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit - With Service Tools

ES#4361551 - 0AR409399BKT4 - Rear Differential Service Kit - With Service Tools - Complete kit with OE fluid to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with OE fluid to service your rear differential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles without Torque Vectoring differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4361551
Mfg#:
0AR409399BKT4
In Stock
$160.99

This product was last offered at the strikethrough price on
02-24-2026

$159.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Rear Differential Service Kit

ES#3660793 - n90281802ktKT - Rear Differential Service Kit - Complete kit with Redline 75w90 fluid with OEM drain/fill plugs and seals to service your rear differential. - Assembled By ECS - Audi Volkswagen

Complete kit with Redline 75w90 fluid with OEM drain/fill plugs and seals 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 with Torque Vectoring differentials

Brand:
Assembled By ECS - Corporate Logo
ES#:
3660793
Mfg#:
N90281802KTKT
In Stock
ON SALE!
$53.99

This product was last offered at the strikethrough price on
04-24-2026

$52.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Rear Differential Carrier Mount Insert Kit

ES#2966689 - 034-505-2016 - Rear Differential Carrier Mount Insert Kit - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2966689
Mfg#:
034-505-2016
Ships in 2 Business Days
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Carrier Mount Bushing - Priced Each

ES#450894 - 8K0599257N - Rear Carrier Mount Bushing - Priced Each - Fits left and right side - Genuine Volkswagen Audi - Audi

Fits left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450894
Mfg#:
8K0599257N
Ships in 4 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.

$88.99

This product was last offered at the strikethrough price on
06-12-2026

$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#3660796 - n10037105ktKT7 - Rear Differential Service Kit - Complete kit with Redline 75w90 fluid with OEM drain/fill plugs and seals to service your rear differential. - Assembled By ECS - Audi

Complete kit with Redline 75w90 fluid with OEM drain/fill plugs and seals 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#:
3660796
Mfg#:
N10037105KTKT7
In Stock
ON SALE!
$97.99

This product was last offered at the strikethrough price on
02-24-2026

$95.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

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 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 22%
$128.65

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

$100.46 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
06-12-2026

$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

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

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
06-12-2026

$108.99 USD
Free Shipping
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

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
02-04-2026

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

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

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