Dorman M39385 brake master cylinder for the 1982-1983 Chevrolet Camaro and other vehicles turns pedal force into hydraulic pressure for the brakes. Two outlets carry that pressure on to the brake lines.
- Dorman First Stop product line
- Cast iron housing
- All rubber components made of EPDM compound for resistance to glycol-based brake fluid
- Made entirely of new materials
- Made to meet rigorous SAE International standards
- Reservoir included with the master cylinder
Quick facts
- Part: Dorman M39385 brake master cylinder
- Fits: 1982-1983 Chevrolet Camaro and other vehicles
- Material: cast iron
- Condition: New
A soft or sinking brake pedal, or a reservoir level that keeps dropping, can mean the master cylinder is worn. Leaks elsewhere in the brake system can give a similar pedal, so with the engine off, look for wet fluid at the cylinder body and around the lines first. A shop can pressure-test the system.
Fits
This brake master cylinder fits the 1982-1983 Chevrolet Camaro and the 1982-1983 Pontiac Firebird.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameters: 31.6 mm and 24 mm
- Rearward outlet size: 1/2-20
- Number of outlets: 2
Build and materials
- Material: cast iron
- Rubber components: EPDM compound
- Reservoir: included
- Condition: New
- Country of origin: China
In the box
One master cylinder with its reservoir; each vehicle takes one. Mounting hardware and a sensor are not included, so plan on new fasteners, since the old ones may not be reusable.
Interchange: 83-36070 · 100-2288 · M-82070 · 13-1912 · 10-1912 · 130.62070 · 131.62070 · 355-47065
18M204 · M900404 · 12192 · 12263 · MC251030 · 18009367 · 18013414 · M1912 · NM1912 · MC39385 · F105863 · MC105863
This part cross-references / interchanges with the following part numbers:
18M204, 83-36070, M900404, 100-2288, M-82070, 12192, 12263, 13-1912, 10-1912, 130.62070, 131.62070, MC251030, 355-47065, 18009367, 18013414, M1912, NM1912, MC39385, F105863, MC105863
Frequently Asked Questions
Is this the right brake master cylinder for the 1982-1983 Pontiac Firebird?
Yes. Dorman M39385 is listed for the 1982-1983 Pontiac Firebird and the 1982-1983 Chevrolet Camaro, and each takes one.
Does this Dorman brake master cylinder include the reservoir?
Yes. Dorman M39385 comes with its reservoir. Mounting hardware and a sensor are not included.
What are the bore sizes on this Dorman master cylinder?
The bore diameters are 31.6 mm and 24 mm, and the rearward outlet size is 1/2-20.
Will the rubber parts in this master cylinder handle glycol-based brake fluid?
Yes. All of its rubber components are made of EPDM compound, chosen for resistance to glycol-based brake fluid.
Is Dorman M39385 the same as master cylinder number 13-1912?
Yes. 13-1912 is listed as an interchange number for Dorman M39385, along with the other numbers on the Interchange line.
