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Audi C7 S7 Quattro 4.0T

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Audi C7 S7 Quattro 4.0T Differential Parts

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Complete Rear Differential Mount Insert Kit

ES#2992521 - 008288ecs01KT - Complete Rear Differential Mount Insert Kit - Increase drivetrain rigidity and response! - ECS - Audi Porsche

Increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992521
Mfg#:
008288ECS01KT
In Stock
ON SALE! SAVE 25%
$196.99

This product was last offered at the strikethrough price on
06-13-2026

$147.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Billet Drivetrain Mount Insert Package

ES#3447972 - 034-509-6001 - 034Motorsport Billet Drivetrain Mount Insert Package - Includes trans mount insert, rear diff mount inserts, and rear diff carrier mount inserts for a complete swap! - 034Motorsport - Audi

Includes trans mount insert, rear diff mount inserts, and rear diff carrier mount inserts for a complete swap!

Brand:
034Motorsport - Corporate Logo
ES#:
3447972
Mfg#:
034-509-6001
In Stock
$294.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Drain/Fill Plug - Priced Each

ES#2538104 - 000857ECS01A - Magnetic Drain/Fill Plug - Priced Each - Capture harmful particles to prevent wear. M22x1.5 - ECS - Audi Volkswagen Porsche

Capture harmful particles to prevent wear. M22x1.5 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2538104
Mfg#:
000857ECS01A
Ships on Oct 21, 2026
Auto Notify
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

75W-85 Differential Oil - 1 Liter

ES#4758817 - G052190A2 - 75W-85 Differential Oil - 1 Liter - One (1) Liter Bottle - MB 235.7 / MB 239.7 Spec - Fuchs - Audi Mercedes Benz

One (1) Liter Bottle - MB 235.7 / MB 239.7 Spec

Brand:
Fuchs - Corporate Logo
ES#:
4758817
Mfg#:
G052190A2
Back Ordered
45% off MSRP

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

$59.00

This product was last offered at the strikethrough price on
07-29-2026

$32.46 USD
Free Shipping
on orders $49 and up

Front Position Rear Differential Mount Insert Kit

ES#2992519 - 008288ECS01 - Front Position Rear Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992519
Mfg#:
008288ECS01
In Stock
ON SALE! SAVE 25%
$95.99

This product was last offered at the strikethrough price on
06-13-2026

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Bushing Differential Mount Insert Kit

ES#2992520 - 008288ECS02 - Rear Bushing Differential Mount Insert Kit - Decrease differential slop for better drivetrain response! - ECS - Audi Porsche

Decrease differential slop for better drivetrain response! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992520
Mfg#:
008288ECS02
In Stock
ON SALE! SAVE 25%
$115.99

This product was last offered at the strikethrough price on
06-13-2026

$86.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8/C7 Center Differential Delete - NO WELDING NEEDED

ES#4375353 - 012535LA01 - B8/C7 Center Differential Delete - NO WELDING NEEDED - Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro 10X Entries For Our 25th Anniversary Sweepstakes!
100% reversible RWD kit when paired with our Axle Delete Plugs (ES4373491) Please make sure via VIN that

Brand:
ECS - Corporate Logo
ES#:
4375353
Mfg#:
012535LA01
Ships in 8 Business Days
ON SALE! SAVE 20%
$452.99

This product was last offered at the strikethrough price on
06-13-2026

$362.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Manual Transmission Fluid - 1 Liter

ES#1293544 - G055532A2 - Manual Transmission Fluid - 1 Liter - Check your owners manual for service intervals - Genuine Volkswagen Audi - Audi

Check your owners manual for service intervals To be used for Transfer Case (Center Diff) fluid on 7-speed S-tronic (DSG) transmission - Total capacity 4.5 liters

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1293544
Mfg#:
G055532A2
In Stock
$34.39 USD
Free Shipping
on orders $49 and up

Rear Differential Mount Insert Kit - Black

ES#4620269 - 8K0599381H - Rear Differential Mount Insert Kit - Black - Enhance your driving experience by filling the bushing void. - JH Motorsports - Audi

Enhance your driving experience by filling the bushing void.

Brand:
JH Motorsports - Corporate Logo
ES#:
4620269
Mfg#:
8K0599381H
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8/C7 Center Differential And Axle Plug Delete Kit

ES#4508908 - 012535laKT - B8/C7 Center Differential And Axle Plug Delete Kit - A 100% reversible Quattro to RWD kit. - ECS - Audi

A 100% reversible Quattro to RWD kit. 10X Entries For Our 25th Anniversary Sweepstakes!
Please make sure via VIN that your Center Diff part number is 0B2 409 755 L

Brand:
ECS - Corporate Logo
ES#:
4508908
Mfg#:
012535LAKT
Ships in 8 Business Days
ON SALE! SAVE 20%
$569.98

This product was last offered at the strikethrough price on
06-13-2026

$455.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Low Profile Service Sockets

ES#4464389 - AGA-SS-8-14-K - Hex Low Profile Service Sockets - Due to minimal clearance, its difficult to get a hex socket in the gaps to remove plugs on rear differentials, transfer case and other engine drain/fill plugs. - AGA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Due to minimal clearance, it’s difficult to get a hex socket in the gaps to remove plugs on rear differentials, transfer case and other engine drain/fill plugs.

Brand:
AGA Tools - Corporate Logo
ES#:
4464389
Mfg#:
AGA-SS-8-14-K
Ships in 8 Business Days
$169.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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.

Brand:
034Motorsport - Corporate Logo
ES#:
2966690
Mfg#:
034-505-2019
Ships in 3 Business Days
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MT-85 75W-85 GL-4 Gear Oil - 1 Quart

ES#2847948 - 50504 - MT-85 75W-85 GL-4 Gear Oil - 1 Quart - Synthetic gear oil for superior performance in your differential - Redline - Audi Mercedes Benz

Synthetic gear oil for superior performance in your differential

Brand:
Redline - Corporate Logo
ES#:
2847948
Mfg#:
50504
In Stock
$25.99 USD
Free Shipping
on orders $49 and up

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.

Brand:
034Motorsport - Corporate Logo
ES#:
2966689
Mfg#:
034-505-2016
Ships in 3 Business Days
$134.00 USD
Free Shipping
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.

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

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