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BMW E88 135i N55 3.0L

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BMW E88 135i N55 3.0L Differential Parts

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E8x/E9x Billet Differential Cover - 215mm Large Case

ES#4830493 - 049438LA - E8x/E9x Billet Differential Cover - 215mm Large Case - Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct. - Turner Motorsport - BMW

Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4830493
Mfg#:
049438LA
Ships in 3 Business Days
ON SALE!
Starting at $1072.54 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Differential - mount bushing

ES#3980854 - KDT919 - Differential - mount bushing - provide an optimal balance between performance and comfort. - Whiteline - BMW

provide an optimal balance between performance and comfort. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Whiteline - Corporate Logo
ES#:
3980854
Mfg#:
KDT919
Ships in 4 Business Days
ON SALE! SAVE 20%
$96.99

This product was last offered at the strikethrough price on
06-09-2026

$77.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Mounts - Solid Delrin Race

ES#3028139 - TDR9080BD2 - Rear Differential Mounts - Solid Delrin Race - An aggressive mount design for increased cornering feel, and improved suspension performance. - Turner Motorsport - BMW

An aggressive mount design for increased cornering feel, and improved suspension performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3028139
Mfg#:
TDR9080BD2
In Stock
ON SALE! SAVE 15%
$372.99

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

$317.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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
18% off MSRP

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

$14.95

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

$12.25 USD
Free Shipping
on orders $49 and up

Differential Bushing Set - BMW E9X / E8X - 80A Street

ES#4900083 - DBS-E9X80A-REV - Differential Bushing Set - BMW E9X / E8X - 80A Street - Reduces drivetrain slop, improves power transfer, restores precise differential support. - Revshift - BMW

Reduces drivetrain slop, improves power transfer, restores precise differential support. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Non-M Models Only

Brand:
Revshift - Corporate Logo
ES#:
4900083
Mfg#:
DBS-E9X80A-REV
Ships in 1 Business Day
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

75w90NS GL-5 Gear Oil - 1 Quart

ES#4369255 - 1063078TSP - 75w90NS GL-5 Gear Oil - 1 Quart - API Service Class GL 5+ - Redline - Audi BMW Volkswagen Mercedes Benz Porsche

API Service Class GL 5+ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
4369255
Mfg#:
1063078TSP
In Stock
$25.49 USD
Free Shipping
on orders $49 and up

MFactory Helical Limited Slip Differential Kit

ES#4758127 - trs-05e46aKT - MFactory Helical Limited Slip Differential Kit - Includes an MFactory Helical LSD, 2 Quarts of Redline 75w90 Diff, an ECS Magnetic plug, and Loctite 5970 gasket maker! - Assembled By ECS - BMW

Includes an MFactory Helical LSD, 2 Quarts of Redline 75w90 Diff, an ECS Magnetic plug, and Loctite 5970 gasket maker! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles with automatic transmission (ring gear machining or new ring&pinion required for manual transmission or DCT fitment)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4758127
Mfg#:
TRS-05E46AKT
In Stock
$1128.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Drivetrain Bushing Package

ES#4474045 - 002705ECS02KT - Performance Drivetrain Bushing Package - Achieve an improved driving experience with this comprehensive poly bushing kit! - Assembled By ECS - BMW

Achieve an improved driving experience with this comprehensive poly bushing kit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4474045
Mfg#:
002705ECS02KT
Ships in 9 Business Days
Auto Notify
ON SALE!
$1190.99

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

$1096.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Differential Service Kit

ES#2582006 - E9XDFFKT - Differential Service Kit - Everything you need to service your differential - including new gaskets and seals - Assembled By ECS - BMW

Everything you need to service your differential - including new gaskets and seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2582006
Mfg#:
E9XDFFKT
Ships in 1-2 days
$169.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Metal Plate Limited-Slip Differential - 1.0 Way

ES#2795267 - MF-TRS-10E90 - Metal Plate Limited-Slip Differential - 1.0 Way - Provides maximum traction and lock up when accelerating. Perfect for drift or drag racing situations or those looking to increase the sport feel of the car. - Team MFactory - BMW

Provides maximum traction and lock up when accelerating. Perfect for drift or drag racing situations or those looking to increase the sport feel of the car. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Any defects or warranty clams will have to go directly to Team M Factory
For vehicles with an automatic transmission

Brand:
Team MFactory - Corporate Logo
ES#:
2795267
Mfg#:
MF-TRS-10E90
Ships in 6 Business Days
$999.99 USD
Free Shipping
on orders $49 and up

Metal Plate Limited-Slip Differential - 1.5 Way

Provides maximum traction when accelerating and provides a "50% lock up" during deceleration affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with an automatic transmission

Brand:
Team MFactory - Corporate Logo
ES#:
4669161
Mfg#:
TRS-10E90B-1.5
Ships in 6 Business Days
$999.99 USD
Free Shipping

75W-85 Differential Oil - 1 Liter

ES#4680024 - 83222295532 - 75W-85 Differential Oil - 1 Liter - Differential fluid - SAE 75W-85 (GL-5) - Febi - BMW Mercedes Benz

Differential fluid - SAE 75W-85 (GL-5) 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!

Brand:
Febi - Corporate Logo
ES#:
4680024
Mfg#:
83222295532
In Stock at Vendor
$36.09 USD
Free Shipping
on orders $49 and up

Race Polyurethane Rear Differential Bushing Set - Front Position

ES#2650111 - PFR5-425Bx2 - Race Polyurethane Rear Differential Bushing Set - Front Position - Transmit more power to the ground and eliminate driveline slop - Powerflex Black Series - BMW

Transmit more power to the ground and eliminate driveline slop affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex Black Series - Corporate Logo
ES#:
2650111
Mfg#:
PFR5-425BX2
Ships in 1 Business Day
$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Gear Oil (GL4+) SAE 75W-90 (20L JUG)

ES#3660870 - 20014 - High Performance Gear Oil (GL4+) SAE 75W-90 (20L JUG) - Fully synthetic GL4+ gear oil, for use on the street or the track - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Fully synthetic GL4+ gear oil, for use on the street or the track affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3660870
Mfg#:
20014
In Stock at Vendor
$489.99

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

$475.99 USD

Silicone Grease

ES#2650597 - PCG1 - Silicone Grease - Recommended by Powerflex for quiet operation and long service life of polyurethane bushings - Powerflex - Audi BMW Volkswagen MINI Porsche

Recommended by Powerflex for quiet operation and long service life of polyurethane bushings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
2650597
Mfg#:
PCG1
In Stock
$1.99 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.

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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