Dorman M39508 brake master cylinder for the 1988-1989 Toyota Corolla and other vehicles turns pedal force into hydraulic pressure for the brakes.
- Dorman First Stop line
- Aluminum master cylinder body
- Rubber components made of EPDM compound for resistance to glycol-based brake fluid
- Made entirely of new materials
- Built to meet SAE International standards
Quick facts
- Part: Dorman M39508 brake master cylinder
- Fits: 1988-1989 Toyota Corolla and other vehicles
- Material: Aluminum
- Condition: New
A soft or sinking brake pedal, or fluid showing around the cylinder, can mean the master cylinder is wearing out. A leaking line or caliper, worn pads or air in the hydraulic system can be behind a spongy pedal too, so track down the actual problem before you buy a replacement.
Fits
It is a direct-fit replacement for the 1988-1989 Toyota Corolla, the 1987-1990 Toyota Tercel and the 1989-1990 Geo Prizm. Each of them takes a single master cylinder.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.813 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
- Rubber components: EPDM compound
- Condition: New
- Country of origin: Taiwan
In the box
One master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new fasteners.
Interchange: 83-22602 · M-56602 · 072-8525 · 072-8586 · 13-2236 · 11-2236 · 130.44602 · 131.44602 · 355-76109
18M273 · 18M464 · M900479 · M900671 · 12277 · 12334 · MC114657 · MC1146571 · MC512380 · M52236 · NM52236 · MC39508 · MC39853 · 4720116140 · F114657
This part cross-references / interchanges with the following part numbers:
18M273, 18M464, 83-22602, M900479, M900671, M-56602, 072-8525, 072-8586, 12277, 12334, 13-2236, 11-2236, 130.44602, 131.44602, MC114657, MC1146571, MC512380, 355-76109, M52236, NM52236, MC39508, MC39853, 4720116140, F114657
Frequently Asked Questions
Is this a master cylinder for the 1988-1989 Toyota Corolla?
Yes. Dorman M39508 is a direct-fit replacement for the 1988-1989 Toyota Corolla, which takes one master cylinder.
Does this Dorman brake master cylinder come with the reservoir and sensor?
Yes. Dorman M39508 comes with its reservoir and sensor. Mounting hardware is not included.
What are the rubber parts in this Dorman master cylinder made of?
All the rubber components are made of an EPDM compound, which resists glycol-based brake fluid.
What signs can mean a brake master cylinder like this one is failing?
A soft or sinking pedal or a fluid leak around the cylinder can mean it is wearing out. Have a shop test the brake hydraulics promptly rather than driving on it.
What thread do the outlets on this master cylinder use?
The master cylinder has two outlets. The rearward and secondary outlets are M10 x 1.0, and the primary outlet thread pitch is 1 mm.
