Dorman M630973 brake master cylinder for the 1975 Toyota Land Cruiser turns pedal force into hydraulic pressure for the brakes. This Dorman brake master cylinder is made entirely of new materials and built to SAE International standards.
- Part of the Dorman First Stop line
- Cast iron housing
- All rubber components are EPDM compound that resists glycol-based brake fluid
- Single reservoir with four outlets
- 1 in bore diameter and four mounting holes
Quick facts
- Part: Dorman M630973 brake master cylinder
- Fits: 1975 Toyota Land Cruiser
- Material: Cast iron
- Condition: New
A soft or sinking brake pedal, or brake fluid leaking at the master cylinder, can mean it is worn, though a leaking brake line or a failing brake hose can be behind those signs too, so find the cause before replacing it. The brake system takes a single master cylinder, and this listing is one.
Fits
This brake master cylinder fits the 1975 Toyota Land Cruiser.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 1 in
- Mounting holes: 4
- Number of outlets: 4
- Rearward and secondary outlet threads: 1/8-27 in and M10 X 1.0
Build and materials
- Material: Cast iron
- Rubber components: EPDM compound
- Reservoir: single, included
- Condition: New
- Country of origin: Taiwan
In the box
One new brake master cylinder with its reservoir. The mounting hardware, mounting bracket, push rod, sensor, bleeder hoses, brake booster and cap are not included. Plan on new mounting hardware, since old bolts may not be reusable.
Interchange: 100-1663 · 11-1727 · 130.44733 · 355-76135 · 355-76136
131727 · MC391430 · 4720160031 · F131599
This part cross-references / interchanges with the following part numbers:
100-1663, 131727, 11-1727, 130.44733, 355-76135, 355-76136, MC391430, 4720160031, F131599
Frequently Asked Questions
Is this a 1975 Toyota Land Cruiser master cylinder?
Yes. Dorman M630973 is a brake master cylinder for the 1975 Toyota Land Cruiser.
Does this Dorman master cylinder come with the bracket, push rod and cap?
Dorman M630973 includes the reservoir. The mounting hardware, bracket, push rod, sensor, bleeder hoses, brake booster and cap are not included, so this listing is the master cylinder alone.
What is the bore diameter of this brake master cylinder?
The bore diameter is 1 in. The housing is cast iron, with a single reservoir and four outlets.
How can I tell if this brake master cylinder is going bad?
With the engine off, look for brake fluid seeping around the body, and notice a pedal that feels soft or sinks. A shop can pressure-test the master cylinder for a definite answer.
Are the rubber parts in this master cylinder made for glycol-based brake fluid?
Yes. All of its rubber components are made of EPDM compound, which resists glycol-based brake fluid.
