Dorman M39757 brake master cylinder for the 1988-1990 Honda Prelude turns pedal force into hydraulic pressure for the brakes. It sends fluid out through its two outlets.
- Aluminum cylinder housing
- Rubber components made of EPDM compound to resist glycol-based brake fluid
- Made entirely of new materials
- Built to meet SAE International standards
- Part of the Dorman First Stop line
Quick facts
- Part: Dorman M39757 brake master cylinder
- Fits: 1988-1990 Honda Prelude
- Material: Aluminum
- Condition: New
A brake pedal that sinks or feels soft, or fluid showing around the cylinder body, can mean the master cylinder is wearing out. Before you replace it, rule out a leak at the lines, hoses or calipers, and air in the system, since those also give a soft pedal.
Fits
This Dorman brake master cylinder is a direct-fit replacement for the 1988-1990 Honda Prelude, which takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.875 in
- Number of outlets: 2
- Rearward outlet size: M10 x 1.0
- Secondary outlet thread diameter: M10 x 1.0
- Primary outlet thread pitch: 1 mm
Build and materials
- Material: Aluminum
- Reservoir: included
- Sensor: included
- Mounting hardware: not included
- Condition: New
- Country of origin: Taiwan
In the box
One brake master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new hardware rather than reusing the old.
Interchange: 783-08011 · 83-08011 · 100-1302 · M-54011 · 072-8508 · 13-2200 · 11-2200 · 130.40011 · 131.40011 · 355-59009
18M417 · M900624 · 12292 · MC508060 · 46100SF1013 · 46100SF1023 · 46100SF1033 · MC39757 · F116450 · MC116450
This part cross-references / interchanges with the following part numbers:
18M417, 783-08011, 83-08011, M900624, 100-1302, M-54011, 072-8508, 12292, 13-2200, 11-2200, 130.40011, 131.40011, MC508060, 355-59009, 46100SF1013, 46100SF1023, 46100SF1033, MC39757, F116450, MC116450
Frequently Asked Questions
Is this the right 1988-1990 Honda Prelude brake master cylinder?
Yes. Dorman M39757 is a direct-fit brake master cylinder for the 1988-1990 Honda Prelude, and the car takes one.
What comes with this Dorman master cylinder?
Dorman M39757 comes with its reservoir and sensor. Mounting hardware is not included.
Will the rubber parts in this master cylinder work with glycol-based brake fluid?
Yes. All rubber components in this master cylinder are made of EPDM compound, which resists glycol-based brake fluid.
What is the bore size and outlet thread on this master cylinder?
The bore diameter is 0.875 inch, and the cylinder has two outlets. The rearward outlet is M10 x 1.0 and the primary outlet thread pitch is 1 mm.
How do I check a master cylinder for a leak?
With the engine off, look for wet fluid or stains on the cylinder body and reservoir, and notice whether the pedal sinks or feels soft in normal driving. A shop can confirm the cause.
