Clutch Master Cylinder for BMW E34 M5 S38 3.5L

Clear BMW chassis

Please ensure your correct model is selected

The clutch master cylinder translates forces applied to the pedal down to the slave cylinder. No pressure in the pedal can be indicative of a failed master cylinder.
Sort By:

ECS Billet Aluminum Clutch Master Cylinder Fitting - 21521151697 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:36472759
Part#: 055182LA01-02
In Stock
Sale - Save 25% $ 33.99

This product was last offered at the strikethrough price on
06-14-2026

$ 25.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 33.99

This product was last offered at the strikethrough price on
06-14-2026

$ 25.49 USD
Free Shipping on orders $49 and up

The ECS Billet Master Cylinder Fitting is the ultimate solution for a notorious failure point in BMW E30 clutch systems. This critical fitting, located at the end of the master cylinder reservoir hose, is responsible for delivering hydraulic fluid to the clutch master cylinder inlet. Unfortunately, the OEM plastic fitting is prone to degradation after prolonged exposure to brake fluid, often leading to total hydraulic pressure loss and brake fluid leaks inside your vehicle.

ECS has addressed this issue by engineering a robust and long-lasting alternative. Crafted from 6061 billet aluminum and finished with black hard-coat anodizing for superior corrosion resistance, this precision-machined fitting replaces the fragile plastic original, ensuring leak-free performance for the lifetime of your vehicle. Upgrade to our Billet Master Cylinder Fitting during your next clutch master cylinder service and enjoy peace of mind knowing your BMW is equipped with a durable, high-quality solution.

Features & Benefits:

Made from 6061 billet aluminum for a permanent, reliable upgrade over the factory plastic fitting. Black hard-coat anodized finish ensures long-lasting protection against the elements. Precision-machined barbs match OEM dimensions for a leak-free seal with Genuine and aftermarket master cylinders. Designed for a secure fit within the factory grommet location. Prevents brake fluid leaks and loss of clutch hydraulic pressure caused by plastic fitting failure. Upgrade your BMW and bulletproof your master cylinder with the ECS Billet Aluminum Master Cylinder Fitting. Ensure clutch hydraulic system reliability and enjoy peace of mind knowing your failure-prone plastic master cylinder fitting has been addressed.

Show More Show Less
Genuine BMW Clutch Master Cylinder Reservoir - E23 733i, E23 735i, E3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:49080
Part#: 21521117729
In Stock
$ 27.58 USD
Free Shipping on orders $49 and up


Genuine BMW Expansion Tank
This item fits the following BMW Chassis:
E34 M5,E34

FTE Master Cylinder - E34
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
FTE - Corporate Logo
T#:379567
Part#: 21522226477
Ships in 1-2 days
$ 217.71 USD
Free Shipping on orders $49 and up
OEM replacement master cylinder

Genuine BMW Clutch Master Cylinder Rebuild Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:7550
Part#: 21521158144
Ships in 8 Business Days
9% off MSRP $ 115.99

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

$ 105.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 115.99

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

$ 105.99 USD
Free Shipping on orders $49 and up


Genuine BMW Repair Kit Input Cylinder Clutch - Fag
This item fits the following BMW Chassis:
E34 M5,E34


Select Vehicle

Category

  • Clutch Master Cylinder

Price

$
$

Special Offers