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.
The ECS Billet Master Cylinder Fitting is the ultimate solution for a notorious failure point in BMW E24, E28, and 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.
Replaces Genuine BMW Part Number: 21521151697
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.
Prop 65 Warning
Cross Reference
21521151697
21521156000
21521154580
21521152658
Product Q&A
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Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
E24
633CSi
M30 3.2L
Use vehicle selector to confirm fitment
BMW
E24
635CSi
M30 3.4L
Use vehicle selector to confirm fitment
BMW
E24
M6
S38 3.5L
Use vehicle selector to confirm fitment
BMW
E28
528e
M20 2.7L
Use vehicle selector to confirm fitment
BMW
E28
533i
M30 3.2L
Use vehicle selector to confirm fitment
BMW
E28
535i
M30 3.4L
Use vehicle selector to confirm fitment
BMW
E28
535is
M30 3.4L
Use vehicle selector to confirm fitment
BMW
E28
M5
S38 3.5L
Use vehicle selector to confirm fitment
BMW
E30
318i
M10 1.8L
Use vehicle selector to confirm fitment
BMW
E30
318i
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E30
318is
M42 1.8L
Use vehicle selector to confirm fitment
BMW
E30
325
M20 2.7L
Use vehicle selector to confirm fitment
BMW
E30
325e
M20 2.7L
Use vehicle selector to confirm fitment
BMW
E30
325es
M20 2.7L
Use vehicle selector to confirm fitment
BMW
E30
325i
M20 2.5L
Use vehicle selector to confirm fitment
BMW
E30
325is
M20 2.5L
Use vehicle selector to confirm fitment
BMW
E30
325ix
M20 2.5L
Use vehicle selector to confirm fitment
BMW
E30
M3
S14 2.3L
Use vehicle selector to confirm fitment
BMW
E31
850Ci
M70 5.0L
Use vehicle selector to confirm fitment
BMW
E31
850Ci
M73 5.4L
Use vehicle selector to confirm fitment
BMW
E31
850CSi
S70 5.6L
Use vehicle selector to confirm fitment
BMW
E32
735i
M30 3.4L
Use vehicle selector to confirm fitment
BMW
E34
525i
M20 2.5L
Use vehicle selector to confirm fitment
BMW
E34
525i
M50 2.5L
Use vehicle selector to confirm fitment
BMW
E34
530i
M60 3.0L
Use vehicle selector to confirm fitment
BMW
E34
535i
M30 3.4L
Use vehicle selector to confirm fitment
BMW
E34
540i
M60 4.0L
Use vehicle selector to confirm fitment
BMW
E34
M5
S38 3.5L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
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