Dorman M36121 brake master cylinder for the 1966 International Scout 800 and other vehicles turns pedal force into hydraulic pressure for the brakes.
- Cylinder housing made of cast iron
- EPDM rubber components that resist glycol-based brake fluid
- Made entirely of new materials
- Made to meet SAE International standards
- Reservoir included, with two outlets
Quick facts
- Part: Dorman M36121 brake master cylinder
- Fits: the 1966 International Scout 800 and other vehicles
- Material: Cast iron
- Condition: New
A soft or sinking brake pedal, fluid around the cylinder or a brake warning light can mean the master cylinder is wearing out. A leaking wheel cylinder or caliper, a worn brake hose or air in the lines can be behind those signs too, so find the cause before buying.
Fits
This master cylinder fits the 1966 International Scout 800, the 1961-1965 International Scout 80 and the 1961-1964 Lincoln Continental. It is engineered to match the design, function and performance of the original master cylinder on these vehicles.
Specifications
Fit and size
- Bore diameter: 0.875 in
- Rearward outlet size: 3/8-24 in
- Secondary outlet thread: 1/8-27 NPT
- Number of outlets: 2
- Quantity per vehicle: 1
Build and materials
- Material: Cast iron
- Rubber components: EPDM compound
- Reservoir: included
- Standards: SAE International
- Condition: New
- Country of origin: Taiwan
In the box
One master cylinder with its reservoir; a single master cylinder is all these vehicles need. Mounting hardware and a sensor are not included, so plan on new mounting bolts rather than reusing the old ones.
Interchange: 83-46003 · 100-2705 · M-88003 · 13-36121 · 10-36121 · 130.68003 · 355-55011
M900068 · MC509530 · C1VY2140B · 5472927 · 5472931 · 871322R91 · MC36121 · F36852 · MC36852
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
83-46003, M900068, 100-2705, M-88003, 13-36121, 10-36121, 130.68003, MC509530, 355-55011, C1VY2140B, 5472927, 5472931, 871322R91, MC36121, F36852, MC36852
Frequently Asked Questions
Is this a direct-fit Scout 800 master cylinder for the 1966 International Scout 800?
Yes. Dorman M36121 is a direct-fit replacement for the 1966 International Scout 800, and one master cylinder is all that vehicle needs.
Does this cast iron master cylinder come with the reservoir?
Yes, the reservoir is included. Mounting hardware and a sensor are not, so plan on new mounting bolts.
What size are the outlets on this brake master cylinder?
Dorman M36121 has two outlets. The rearward outlet is 3/8-24 in and the secondary outlet thread is 1/8-27 NPT. The bore diameter is 0.875 in.
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.
How can I tell if this master cylinder is wearing out?
A soft or sinking brake pedal, fluid around the cylinder or a brake warning light can mean it is wearing out. Have the brakes checked promptly; a shop can test the cylinder.
