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BMW E93 M3 S65 4.0L

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BMW E93 M3 S65 4.0L Differential Parts

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Differential Service Kit

ES#3449384 - E46M3DIFSER2KT - Differential Service Kit - All you need in one package for scheduled differential maintenance! With a ECS Magnetic Differential Oil Drain Plug! - Assembled By ECS - BMW

All you need in one package for scheduled differential maintenance! With a ECS Magnetic Differential Oil Drain Plug! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3449384
Mfg#:
E46M3DIFSER2KT
In Stock
ON SALE!
$274.99

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

$252.18 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Differential Carrier Bushing - Rear

ES#57297 - 33312283384 - Differential Carrier Bushing - Rear - Reduce drivetrain vibrations - Genuine BMW - BMW

Reduce drivetrain vibrations

Brand:
Genuine BMW - Corporate Logo
ES#:
57297
Mfg#:
33312283384
Ships in 2 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.

$103.99

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

$101.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

"Right Stuff" Gasket Maker

ES#517963 - 29208 - "Right Stuff" Gasket Maker - Creates gaskets the same way as OEM car manufacturers - Permatex - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Creates gaskets the same way as OEM car manufacturers

Brand:
Permatex - Corporate Logo
ES#:
517963
Mfg#:
29208
Ships in 1 day
$33.19 USD
Free Shipping
on orders $49 and up

Max-Gear Gear Oil 75w90 - 1 Quart

ES#263484 - 01300 - Max-Gear Gear Oil 75w90 - 1 Quart - Max-Gear is recommended for use in front or rear open differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid - Royal Purple - Audi BMW Volkswagen Mercedes Benz Porsche

Max-Gear is recommended for use in front or rear open differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid

Brand:
Royal Purple - Corporate Logo
ES#:
263484
Mfg#:
01300
In Stock
$22.99 USD
Free Shipping
on orders $49 and up

Hightec TOPGEAR SAE 75W-90 S - 1 Liter

ES#5374135 - 25002-0010-99 - Hightec TOPGEAR SAE 75W-90 S - 1 Liter - Fully synthetic, multigrade gearbox oil of performance rating API GL-4/5 for multi-functional use in axle gears and manual gearboxes - ROWE - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Fully synthetic, multigrade gearbox oil of performance rating API GL-4/5 for multi-functional use in axle gears and manual gearboxes

Brand:
ROWE - Corporate Logo
ES#:
5374135
Mfg#:
25002-0010-99
In Stock
$19.99 USD
Free Shipping
on orders $49 and up

Rear Differential Mounts - Solid Aluminum/Delrin Race

ES#3028136 - TDR9080321 - Rear Differential Mounts - Solid Aluminum/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. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3028136
Mfg#:
TDR9080321
In Stock
ON SALE! SAVE 46%
$304.99

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

$163.21 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy ShockProof Gear Oil - 1 Gallon

ES#2847972 - 58205 - Heavy ShockProof Gear Oil - 1 Gallon - For heavily-loaded racing differentials and transmissions, problem gearboxes - Redline - Audi BMW Volkswagen Mercedes Benz

For heavily-loaded racing differentials and transmissions, problem gearboxes For Custom Applications Only.

Brand:
Redline - Corporate Logo
ES#:
2847972
Mfg#:
58205
In Stock
$99.99 USD
Free Shipping
on orders $49 and up

Differential Service Kit

ES#3691552 - 33117525064KT7 - Differential Service Kit - All you need in one package for scheduled differential maintenance! With an ECS Magnetic Differential Oil Drain Plug! - Assembled By ECS - BMW

All you need in one package for scheduled differential maintenance! With an ECS Magnetic Differential Oil Drain Plug! 10X Entries For Our 25th Anniversary Sweepstakes!
Includes Liqui-Moly 75W140 differential fluid

Brand:
Assembled By ECS - Corporate Logo
ES#:
3691552
Mfg#:
33117525064KT7
In Stock
ON SALE! SAVE 15%
$150.01

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

$127.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Axle Seal Driver

ES#199851 - 83300495143 - Axle Seal Driver - Used to install axle seals on TYP210 and TYP215 differentials - Genuine BMW - BMW

Used to install axle seals on TYP210 and TYP215 differentials

Brand:
Genuine BMW - Corporate Logo
ES#:
199851
Mfg#:
83300495143
Ships in 1 day
$82.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Differential Dust Cover

ES#2593387 - 33137600693 - Differential Dust Cover - The small dust cover that protects your differential - Genuine BMW - BMW

The small dust cover that protects your differential

Brand:
Genuine BMW - Corporate Logo
ES#:
2593387
Mfg#:
33137600693
Ships in 1 day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Differential Service Kit - With Service Tools

ES#4361556 - E46M3DIFSER1KT - Differential Service Kit - With Service Tools - All you need in one package for scheduled differential maintenance! - Genuine BMW - BMW

All you need in one package for scheduled differential maintenance! Includes BMW SAF-XJ limited slip differential fluid with FM booster

Brand:
Genuine BMW - Corporate Logo
ES#:
4361556
Mfg#:
E46M3DIFSER1KT
Ships on Aug 6, 2026
$277.99

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

$264.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Max-Gear Gear Oil 75w140 - 1 Quart

ES#2515383 - 01301 - Max-Gear Gear Oil 75w140 - 1 Quart - Max-Gear is recommended for use in front or rear LSD differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid - Royal Purple - BMW Mercedes Benz

Max-Gear is recommended for use in front or rear LSD differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid Recommended for BMW manual transmissions with the "Green Label" or SHC 630

Brand:
Royal Purple - Corporate Logo
ES#:
2515383
Mfg#:
01301
Ships in 5 Business Days
$24.99 USD
Free Shipping
on orders $49 and up

Billet Diff Cover Replacement Drain Plug

ES#4699254 - 4835K45 - Billet Diff Cover Replacement Drain Plug - Extreme-Pressure Steel Plug With Hex Drive - Fluoroelastomer Rubber Gasket, 9/16"-18 UN/UNF Thread - Bremmen Parts - BMW

Extreme-Pressure Steel Plug With Hex Drive - Fluoroelastomer Rubber Gasket, 9/16"-18 UN/UNF Thread 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4699254
Mfg#:
4835K45
In Stock
ON SALE! SAVE 15%
$6.99

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

$5.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Differential Input Shaft Seal - Priced Each

ES#5423625 - 33121213949 - Differential Input Shaft Seal - Priced Each - Replaces damaged or cracked transmission valve body seals - URO - BMW

Replaces damaged or cracked transmission valve body seals 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5423625
Mfg#:
33121213949
In Stock
$18.99 USD
Free Shipping
on orders $49 and up

Securing Plate

ES#56143 - 33121205138 - Securing Plate - See MOQKT - Genuine BMW - BMW

See MOQKT

Brand:
Genuine BMW - Corporate Logo
ES#:
56143
Mfg#:
33121205138
Ships in 1 day
$4.99 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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