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Audi B8/B8.5 S5 Quattro V8 4.2L

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Audi B8/B8.5 S5 Quattro V8 4.2L Drivetrain Parts & Accessories

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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 Jul 15, 2026
Auto Notify
ON SALE! SAVE 17%
$161.99

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

$134.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Billet Aluminum Rear Differential Mount Upgrade

ES#2966690 - 034-505-2019 - Billet Aluminum Rear Differential Mount Upgrade - 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#:
2966690
Mfg#:
034-505-2019
Ships in 2 Business Days
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#4460705 - 8K0399151DB - Transmission Mount - Reduce excessive drivetrain vibrations - URO - Audi Porsche

Reduce excessive drivetrain vibrations affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
From production date 10/9/2007

Brand:
URO - Corporate Logo
ES#:
4460705
Mfg#:
8K0399151DB
In Stock
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8 A4/S4/A5/S5 Selector Shaft Monoball & Transmission Mount Bushing Insert Kit

ES#4876600 - 048563LA02EBKT - B8 A4/S4/A5/S5 Selector Shaft Monoball & Transmission Mount Bushing Insert Kit - Eliminate the loose or sloppy feeling from your shifter and drivetrain! - Enthusiast Bundles - Audi

Eliminate the loose or sloppy feeling from your shifter and drivetrain! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876600
Mfg#:
048563LA02EBKT
Ships in 8 Business Days
ON SALE! SAVE 40%
$252.99

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

$152.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Hub - Priced Each

ES#4447249 - 8K0407613B - Wheel Hub - Priced Each - Does not include wheel bearing - Hamburg Tech - Audi

Does not include wheel bearing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4447249
Mfg#:
8K0407613B
Ships in 1 Business Day
$89.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BFI Heavy Weight Shift Knob - Blue Alcantara / Black Anodized

ES#3478490 - GS2DGSLU - BFI Heavy Weight Shift Knob - Blue Alcantara / Black Anodized - Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. - Black Forest Industries - Audi Volkswagen

Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3478490
Mfg#:
GS2DGSLU
Ships on Jul 30, 2026
$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4158614 - n90281802ktKT1 - Rear Differential Service Kit - 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#:
4158614
Mfg#:
N90281802KTKT1
In Stock
ON SALE! SAVE 17%
$114.99

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

$95.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

BFI Heavy Weight Shift Knob - Black Alcantara

ES#3022037 - GS2DGU - BFI Heavy Weight Shift Knob - Black Alcantara - Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. - Black Forest Industries - Audi Volkswagen

Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3022037
Mfg#:
GS2DGU
In Stock
$214.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Axle Replacement Hardware Kit - priced each

ES#2766106 - n90441103KT - Front Axle Replacement Hardware Kit - priced each - Complete hardware kit for replacing an axle - Genuine Volkswagen Audi - Audi

Complete hardware kit for replacing an axle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2766106
Mfg#:
N90441103KT
In Stock
$47.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Manual Transmission Service Kit

ES#2681104 - G052911A2KT - Manual Transmission Service Kit - Featuring Genuine fluid to service your transmission - Genuine Volkswagen Audi - Audi Volkswagen

Featuring Genuine fluid to service your transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2681104
Mfg#:
G052911A2KT
Ships in 1-2 days
$106.14 USD
Free Shipping

Motylgear Manual Transmission / Differential Fluid (75w-80) - 1 Liter

ES#4057150 - 105782 - Motylgear Manual Transmission / Differential Fluid (75w-80) - 1 Liter - Technosynthese Semi-synthetic high performance GL-4 / GL-5 gear oil specially recommended for hard to shift gearboxes - Motul - Audi Volkswagen Porsche

Technosynthese Semi-synthetic high performance GL-4 / GL-5 gear oil specially recommended for hard to shift gearboxes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motul - Corporate Logo
ES#:
4057150
Mfg#:
105782
In Stock
10% off MSRP

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

$20.44

This product was last offered at the strikethrough price on
06-26-2026

$18.40 USD
Free Shipping
on orders $49 and up

Wheel Bearing Kit - Pair

ES#3194737 - 4H0498625AKT5 - Wheel Bearing Kit - Pair - Includes both bearings with axle & securing bolts - Vaico - Audi

Includes both bearings with axle & securing bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3194737
Mfg#:
4H0498625AKT5
In Stock at Vendor
$841.99

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

$817.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Bearing - Priced Each

ES#3193984 - 4H0498625F - Wheel Bearing - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3193984
Mfg#:
4H0498625F
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.

$445.00

This product was last offered at the strikethrough price on
06-26-2026

$407.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Bearing Kit - Pair

ES#2628422 - 4H0498625AKT1 - Wheel Bearing Kit - Pair - Includes both bearings with axle & securing bolts - Genuine Volkswagen Audi - Audi

Includes both bearings with axle & securing bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2628422
Mfg#:
4H0498625AKT1
Ships in 1-2 days
$814.26 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt Self Locking (M8x45x30) - Priced Each

ES#468897 - N10719001 - Hex Bolt Self Locking (M8x45x30) - Priced Each - Install new hardware with your new parts - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468897
Mfg#:
N10719001
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Drivetrain Parts & Accessories

Put your power to the wheels where it belongs, and keep drivetrain components mounted securely for comfort and safety. Our Drivetrain Components Section has a huge assortment of parts and fluids for transmissions, differentials, driveshafts, drivetrain mounts, drivetrain bushings, and drive hubs, plus special tools to make repairs easy.

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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