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BMW M3 Differential Parts

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Differential Service Kit

ES#3449404 - 33111211708KT2 - Differential Service Kit - Everything you need to service your differential, featuring Redline 75w90 GL-5 Gear Oil and ECS Magnetic Differential Oil Drain Plug! - Assembled By ECS - BMW

Everything you need to service your differential, featuring Redline 75w90 GL-5 Gear Oil and ECS Magnetic Differential Oil Drain Plug! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3449404
Mfg#:
33111211708KT2
In Stock
ON SALE!
$155.99

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

$146.42 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Differential Service Kit

ES#3170081 - f8xdiffKT - Differential Service Kit - All you need in one package for scheduled differential maintenance! With Genuine BMW Motorsport Differential fluid. - Assembled By ECS - BMW

All you need in one package for scheduled differential maintenance! With Genuine BMW Motorsport Differential fluid. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3170081
Mfg#:
F8XDIFFKT
In Stock
ON SALE!
$157.99

This product was last offered at the strikethrough price on
06-03-2026

$143.33 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Differential Axle Shaft Seal - Priced Each

ES#2129953 - 33107510289 - Differential Axle Shaft Seal - Priced Each - Includes locking snap ring - Victor Reinz - BMW

Includes locking snap ring

Brand:
Victor Reinz - Corporate Logo
ES#:
2129953
Mfg#:
33107510289
In Stock at Vendor
$25.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Speedometer Impulse Sender

ES#4879361 - 62168355008 - Speedometer Impulse Sender - Located in the rear differential - URO - BMW

Located in the rear differential 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4879361
Mfg#:
62168355008
In Stock
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Differential Oil Drain Plug

ES#4213327 - 33117525064 - Differential Oil Drain Plug - M22X1.5 Used on the rear differential - Rein - BMW MINI

M22X1.5 Used on the rear differential 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4213327
Mfg#:
33117525064
In Stock
$11.99

This product was last offered at the strikethrough price on
05-20-2026

$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MMX Dual Differential Mount - G8x

MMX locks your G8X differential solid—stronger, sharper, torque-directing, track-ready.

Brand:
MMX Performance - Corporate Logo
ES#:
5341421
Mfg#:
MMR55-1606
Ships in 3 Business Days
$546.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential mount/support

ES#2767146 - 33172284774 - Rear Differential mount/support - Front position bracket,includes new bushings - Genuine BMW - BMW

Front position bracket,includes new bushings

Brand:
Genuine BMW - Corporate Logo
ES#:
2767146
Mfg#:
33172284774
Ships in 2 Business Days
3% off MSRP

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

$239.99

This product was last offered at the strikethrough price on
07-21-2026

$233.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4876240 - 835225790dKT - Rear Differential Service Kit - Perfect service kit for your BMW, Includes the diff fluid and drain plug to get the job done. - Assembled By ECS - BMW

Perfect service kit for your BMW, Includes the diff fluid and drain plug to get the job done. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4876240
Mfg#:
835225790DKT
In Stock
ON SALE!
$59.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Hypoid Gear Oil 85w90 - 1 Liter

ES#3097303 - 20010 - Hypoid Gear Oil 85w90 - 1 Liter - Mineral based GL5 gear oil, for use on the street or the track - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Mineral based GL5 gear oil, for use on the street or the track 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3097303
Mfg#:
20010
In Stock
32% off MSRP

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

$17.99

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

$12.25 USD
Free Shipping
on orders $49 and up

Heavy Duty Rear Differential Bushing

ES#4773004 - 055059LA01 - Heavy Duty Rear Differential Bushing - High durometer rubber construction allows for less deflection without a drastic increase in NVH! - ECS - BMW

High durometer rubber construction allows for less deflection without a drastic increase in NVH! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4773004
Mfg#:
055059LA01
In Stock
ON SALE! SAVE 56%
$52.99

This product was last offered at the strikethrough price on
04-28-2026

$23.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Polyurethane Differential Bushing - Front Position

ES#2748538 - 002447ECS04 - Performance Polyurethane Differential Bushing - Front Position - ECS engineered to improve power application and provide superior service life over factory rubber bushings - ECS - BMW

ECS engineered to improve power application and provide superior service life over factory rubber bushings 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2748538
Mfg#:
002447ECS04
In Stock
ON SALE! SAVE 25%
$58.99

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

$44.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW E46 M3 Rear Diff Rear Mount

ES#4845440 - PFR5-4620H - BMW E46 M3 Rear Diff Rear Mount - This upgrade is often appreciated by those looking to improve the durability and responsiveness of their E46 M3, especially as factory rubber bushings wear out with time and use. - Powerflex - BMW

This upgrade is often appreciated by those looking to improve the durability and responsiveness of their E46 M3, especially as factory rubber bushings wear out with time and use.

Brand:
Powerflex - Corporate Logo
ES#:
4845440
Mfg#:
PFR5-4620H
Ships in 1 Business Day
$147.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Motorsport Ring And Pinion Set

ES#4477402 - 33108437888 - BMW Motorsport Ring And Pinion Set - Dramatic improvement over factory acceleration, with 3.85 gear ratio - Genuine BMW - BMW

Dramatic improvement over factory acceleration, with 3.85 gear ratio

Brand:
Genuine BMW - Corporate Logo
ES#:
4477402
Mfg#:
33108437888
Ships in 4 Business Days
2% off MSRP

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

$1480.00

This product was last offered at the strikethrough price on
07-21-2026

$1450.99 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.

Let us help you find the parts that fit your BMW

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

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