Turn pedal effort into braking pressure with the Dorman brake master cylinder M90547 from the First Stop line, a direct-fit replacement for the 1965-1970 Volkswagen Beetle and the 1965-1966 Volkswagen Karmann Ghia. It is also listed for the 1977 Volkswagen Beetle. See the "Vehicles it fits" section for the full fitment chart.
The master cylinder converts force from the brake pedal into hydraulic pressure and sends brake fluid through the lines to the brakes at each wheel. Dorman engineered this unit to match the design, function and performance of the original master cylinder on the listed applications. It is built from new, high-quality materials.
- Precise replacement: The cylinder housing is built to match the casting material of the original part for similar performance.
- Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: Made entirely from new materials for quality and safety.
- Strict specifications: Built to meet rigorous SAE International standards.
Signs a master cylinder may need replacing include a spongy or slowly sinking brake pedal, brake fluid seeping from the unit, or a fluid level that keeps dropping. If a worn or leaking master cylinder is the cause, this Dorman master cylinder replaces it. Consult the vehicle service information for bleeding and installation procedures.
Interchange: 83-94101 · 100-1119 · M-20101 · 072-8030 · 13-36272 · 11-36272 · 130.33501 · 131.33501 · 355-74058
8394101 · 1001119 · M20101 · 0728030 · 1336272 · 1136272 · 13033501 · 13133501 · 35574058 · M900110 · 11553 · MC251140 · 90547 · MC36272 · 113611023B · F90547 · MC90547
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
83-94101, M900110, 100-1119, M-20101, 072-8030, 11553, 13-36272, 11-36272, 130.33501, 131.33501, MC251140, 355-74058, 90547, MC36272, 113611023B, F90547, MC90547
Frequently Asked Questions
Is this the right brake master cylinder for a 1965-1970 VW Beetle?
It is listed for the 1965-1970 Volkswagen Beetle and the 1965-1966 Volkswagen Karmann Ghia. The "Vehicles it fits" section has the full fitment chart.
What does a brake master cylinder do?
It converts force from the brake pedal into hydraulic pressure and moves brake fluid through the lines to the brakes at each wheel.
What are the rubber components made of?
All rubber components are made of a high-quality EPDM compound, which resists glycol-based brake fluid.
What standards is this master cylinder built to?
It is made entirely of new materials and built to meet rigorous SAE International standards. Its housing matches the casting material of the original part.
What are signs a brake master cylinder may need replacing?
Common signs include a spongy or slowly sinking pedal, fluid leaking from the unit, or a fluid level that keeps dropping. Diagnose the cause first, since other brake parts can cause these symptoms.
