Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW F80 M3 S55 Differential Parts

Sort By
Filter By
Return to Top

Turner Titanium Magnetic Differential Drain Plug - M22x1.5

ES#4031285 - 027030TMS01 - Turner Titanium Magnetic Differential Drain Plug - M22x1.5 - Remove harmful metallic contaminants from imposing premature wear on your differential. Easily monitor the condition of your differential with every fluid change. 14mm Hex Socket Head. - Turner Motorsport - BMW MINI

Remove harmful metallic contaminants from imposing premature wear on your differential. Easily monitor the condition of your differential with every fluid change. 14mm Hex Socket Head. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4031285
Mfg#:
027030TMS01
In Stock
ON SALE! SAVE 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

75w140 Saf-Xj - 1 liter

ES#2818159 - 83222357992 - 75w140 Saf-Xj - 1 liter - Designed for use in differentials with LSD requiring a heavier viscosity - Genuine BMW - BMW

Designed for use in differentials with LSD requiring a heavier viscosity

Brand:
Genuine BMW - Corporate Logo
ES#:
2818159
Mfg#:
83222357992
In Stock
5% off MSRP

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

$46.12

This product was last offered at the strikethrough price on
07-22-2026

$43.68 USD
Free Shipping
on orders $49 and up

Castrol SAF-XJ (75w-140) - 500mL

ES#1613859 - 001989520310 - Castrol SAF-XJ (75w-140) - 500mL - Used In AMG and BMW Motorsport rear differentials - Castrol - BMW Mercedes Benz
ECS Tuning recommends this product.

Used In AMG and BMW Motorsport rear differentials

Brand:
Castrol - Corporate Logo
ES#:
1613859
Mfg#:
001989520310
In Stock
$41.59 USD
Free Shipping
on orders $49 and up

75W85 GL-5 Gear Oil - 1 quart

ES#2847932 - 50104 - 75W85 GL-5 Gear Oil - 1 quart - Synthetic gear oil for superior performance in your differential - Redline - BMW MINI

Synthetic gear oil for superior performance in your differential

Brand:
Redline - Corporate Logo
ES#:
2847932
Mfg#:
50104
In Stock
$25.99 USD
Free Shipping
on orders $49 and up

Heavy ShockProof Gear Oil - 1 quart

ES#2847971 - 58204 - Heavy ShockProof Gear Oil - 1 quart - GL-5+ Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90. Fully synthetic gear oil. - Redline - BMW

GL-5+ Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90. Fully synthetic gear oil.

Brand:
Redline - Corporate Logo
ES#:
2847971
Mfg#:
58204
In Stock
$25.99 USD
Free Shipping
on orders $49 and up

F8X Rear Differential

Replacement Genuine BMW rear differential with stock gearing. For vehicles with a production date from 04/2014 to 07/2016

Brand:
Genuine BMW - Corporate Logo
ES#:
3144751
Mfg#:
33108090464
Ships in 4 Business Days
4% off MSRP

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

$4834.99

This product was last offered at the strikethrough price on
07-22-2026

$4617.99 USD

BMW Differential - F8x

High-performance BMW differential assembly for M models, ensuring optimal power distribution.

Brand:
Genuine BMW - Corporate Logo
ES#:
3144752
Mfg#:
33108090473
Ships in 4 Business Days
4% off MSRP

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

$4834.99

This product was last offered at the strikethrough price on
07-22-2026

$4617.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Hypoid Differential Fluid - G3

ES#3251541 - 83222413512 - BMW Hypoid Differential Fluid - G3 - 500ML - Genuine BMW - BMW MINI

500ML

Brand:
Genuine BMW - Corporate Logo
ES#:
3251541
Mfg#:
83222413512
In Stock
3% off MSRP

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

$90.99

This product was last offered at the strikethrough price on
07-22-2026

$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Dual-Mount Differential Plate

ES#4030564 - 026773tms02 - Turner Dual-Mount Differential Plate - Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response - Turner Motorsport - BMW

Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4030564
Mfg#:
026773TMS02
In Stock
ON SALE! SAVE 25%
$520.99

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

$390.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Diff Mount Bushing - Rear Position (95A)

ES#4001055 - 026696ECS03 - Rear Diff Mount Bushing - Rear Position (95A) - Engineered to improve power delivery and handling, with a superior lifespan over factory rubber bushings. - ECS - BMW

Engineered to improve power delivery and handling, with a superior lifespan over factory rubber bushings. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4001055
Mfg#:
026696ECS03
In Stock
$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Polyurethane Rear Differential Bushing Set - Street

ES#4772521 - PDB-F8X-80A - Polyurethane Rear Differential Bushing Set - Street - 80A durometer provides an increase in stiffness without sacrificing NVH! - Revshift - BMW

80A durometer provides an increase in stiffness without sacrificing NVH!

Brand:
Revshift - Corporate Logo
ES#:
4772521
Mfg#:
PDB-F8X-80A
In Stock
$249.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Differential Service Kit

ES#4066747 - F8XDIFFKT4 - Differential Service Kit - All you need in one package for scheduled differential maintenance! With Liqui-Moly Differential fluid - Assembled By ECS - BMW

All you need in one package for scheduled differential maintenance! With Liqui-Moly Differential fluid 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4066747
Mfg#:
F8XDIFFKT4
In Stock
ON SALE! SAVE 30%
$121.99

This product was last offered at the strikethrough price on
05-29-2026

$85.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

MoS2 Anti Friction Additive For Manual Transmission / Differential

ES#261605 - 2019 - MoS2 Anti Friction Additive For Manual Transmission / Differential - Increase the life of your gear oil, and decrease gearbox noise - Liqui-Moly - Audi BMW Volkswagen Porsche

Increase the life of your gear oil, and decrease gearbox noise 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
261605
Mfg#:
2019
In Stock
48% off MSRP

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

$22.99

This product was last offered at the strikethrough price on
07-22-2026

$11.99 USD
Free Shipping
on orders $49 and up

Turner F8X M3 & M4 Dual Mount Diff Plate - With Extra Rear Position ECS Poly Bushing

ES#4044497 - 026773tms04KT - Turner F8X M3 & M4 Dual Mount Diff Plate - With Extra Rear Position ECS Poly Bushing - Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response. Includes ECS polyurethane differential bushing for the secondary mounting location. - Turner Motorsport - BMW

Upgrade your differential to capitalize on dual rear mounts for improved bushing life, reduced wheel hop, and crisper driveline response. Includes ECS polyurethane differential bushing for the secondary mounting location. 10X Entries For Our 25th Anniversary Sweepstakes!
Only for use with Poly Diff Bushings!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4044497
Mfg#:
026773TMS04KT
In Stock
ON SALE! SAVE 25%
$588.99

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

$441.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

75W110 GL-5 Gear Oil - 1 quart

ES#2847957 - 57804 - 75W110 GL-5 Gear Oil - 1 quart - Synthetic gear oil for superior performance in your differential - Redline - BMW

Synthetic gear oil for superior performance in your differential

Brand:
Redline - Corporate Logo
ES#:
2847957
Mfg#:
57804
In Stock
$25.89 USD
Free Shipping
on orders $49 and up

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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings