Dorman - First Stop Brake Master Cylinder P/N:M630891
Dorman M39384 brake master cylinder for the 1982-1983 Chevrolet Camaro and other vehicles turns pedal force into hydraulic pressure for the brakes.
A leaking brake line, a worn caliper or a faulty wheel cylinder can be behind a soft or sinking pedal too, so find the cause before buying. Brake fluid on or around the cylinder body can also point to a master cylinder that has started to leak.
It is a direct-fit replacement for the 1982-1983 Chevrolet Camaro and a brake master cylinder for the 1982-1983 Pontiac Firebird.
Fit and size
Build and materials
One brake master cylinder with its reservoir. This listing holds one cylinder, and the vehicle takes one. Mounting hardware and a sensor are not included, so plan on new fasteners rather than reusing the old ones.
Interchange: 83-36053 · 100-2269 · M-82053 · 13-1987 · 10-1987 · 130.62053 · 355-47057
18M203 · M900403 · 12259 · MC507080 · 18009370 · 18013413 · 18030445 · M1987 · NM1987 · MC39384 · F105864 · F116402 · MC105864
Is the Dorman brake master cylinder M39384 right for a 1982-1983 Chevrolet Camaro?
Does this Dorman master cylinder come with the reservoir?
Yes. Dorman M39384 includes the reservoir. Mounting hardware and a sensor are not included.
What are the bore sizes on this cast iron brake master cylinder?
The bore diameters are 36 mm and 24.4 mm. The cylinder has two outlets, and the secondary outlet thread is 1/2-20.
What are the rubber parts in this brake master cylinder made of?
All rubber components are made of an EPDM compound for resistance to glycol-based brake fluid.
Is this brake master cylinder made to SAE standards?
Yes. Dorman M39384 is made to meet rigorous SAE International standards and is built entirely of new materials.
This part cross-references / interchanges with the following part numbers:
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.