Dorman - First Stop Brake Master Cylinder P/N:M73354
Turn brake-pedal effort into the hydraulic pressure that pushes fluid to the wheel circuits with the Dorman - First Stop Brake Master Cylinder M93354. It's engineered to match the original unit's design, function, and performance on the listed applications: the 1967-1978 Volkswagen Beetle [All], 1967-1974 Volkswagen Karmann Ghia [All], 1973-1974 Volkswagen Thing [All], and Volkswagen Sedan [All] (1977 and 1992-2004).
It has a 0.75 in bore and five outlets, with M10 x 1.0 rearward and secondary outlet threads and a 1 mm primary outlet thread pitch. The master cylinder ships on its own — reservoir, sensor, and mounting hardware are not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China. Manufacturer part number M93354.
What does the M93354 master cylinder do?
It converts brake-pedal force into hydraulic pressure, pushing brake fluid through its outlets to the wheel circuits so the brakes can apply.
Which vehicles does this fit?
It's a direct-fit replacement for the 1967-1978 VW Beetle, 1967-1974 Karmann Ghia, 1973-1974 Thing, and VW Sedan (1977 and 1992-2004), all engines. See the Buyer's Guide tab for the full list.
Does it include a reservoir, sensor, or mounting hardware?
No. The reservoir, sensor, and mounting hardware are not included — this listing is for the master cylinder only.
What is it made of?
The cylinder housing is cast iron to match the casting material of the original, and all rubber components use a high-quality EPDM compound that resists glycol-based brake fluid.
What are the bore and outlet specs?
It has a 0.75 in bore and five outlets, with M10 x 1.0 rearward and secondary outlet threads and a 1 mm primary outlet thread pitch.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.