Dorman M3434 brake master cylinder for the 1946-1952 Chevrolet Fleetline and other vehicles turns pedal force into hydraulic pressure for the brakes. It is a new part, made entirely of new materials.
- Dorman First Stop product line
- Cast iron cylinder housing
- All rubber components are made of EPDM compound for resistance to glycol-based brake fluid
- Made to meet SAE International standards
Quick facts
- Part: Dorman M3434 brake master cylinder
- Fits: 1946-1952 Chevrolet Fleetline and other vehicles
- Material: Cast iron
- Condition: New
A brake pedal that sinks or feels soft, or fluid leaking around the cylinder, can mean the master cylinder is worn. These signs alone do not prove the master cylinder is at fault, since a leaking brake line can cause a soft pedal too.
Fits
It is a direct-fit replacement for the 1946-1952 Chevrolet Fleetline, the 1950-1952 Chevrolet Bel Air and the 1949-1952 Chevrolet Styleline Deluxe, and it is listed for a wide range of other Chevrolet models. If your Chevrolet is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Master cylinder bore diameter: 1 in
- Rearward outlet size: 1/2-20
- Number of outlets: 1
Build and materials
- Material: cast iron
- Rubber components: EPDM compound
- Standards: SAE International
- Condition: new
- Country of origin: Taiwan
In the box
One brake master cylinder with its reservoir. This listing is one master cylinder, and each vehicle takes one. Mounting hardware is not included, so plan on new mounting hardware rather than reusing the old.
Interchange: 100-2327 · 13-33434 · 130.62113 · 355-47085
M900014 · MC509490 · 5453737 · 605007 · MC3434 · F3434
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
M900014, 100-2327, 13-33434, 130.62113, MC509490, 355-47085, 5453737, 605007, MC3434, F3434
Frequently Asked Questions
Does the Dorman M3434 master cylinder fit a 1950-1952 Chevrolet Bel Air?
Yes, Dorman M3434 is listed for the 1950-1952 Chevrolet Bel Air. Other Chevrolet models are in the "Vehicles it fits" section.
Does this master cylinder come with the reservoir?
Yes, the reservoir is included with this master cylinder. Mounting hardware is not included, so plan on new hardware.
What bore size does the Dorman M3434 master cylinder have?
Dorman M3434 has a 1 in bore diameter and one outlet with a 1/2-20 rearward outlet size. Its housing is cast iron.
Could a sinking pedal mean this cast iron master cylinder is worn?
A pedal that sinks or feels soft, or brake fluid showing on the outside of the cylinder, can mean it is worn. A shop can test it; have braking problems checked promptly.
Are the rubber parts in the Dorman M3434 safe with glycol-based brake fluid?
Yes, all rubber components in the Dorman M3434 are made of an EPDM compound for resistance to glycol-based brake fluid.
