Turn brake-pedal effort into the hydraulic pressure that stops your car with the Dorman First Stop Brake Master Cylinder (M43207). It drops in as a direct-fit replacement for the 1960-1964 Plymouth Valiant, 1961-1962 Dodge Lancer, and 1963-1966 Dodge Dart (All), engineered to replicate the original master cylinder's design and function on those applications.
As the hydraulic heart of the brake system, the master cylinder translates the force you apply at the pedal into fluid pressure that travels through the lines to the wheel brakes. This unit is built with a single outlet and a 1 in bore, a rearward outlet sized 7/16-24, and it ships with the reservoir installed.
No sensor is included and mounting hardware is not supplied — consult the vehicle service information for the correct fasteners and whether they may be reused. If a failed master cylinder is the cause of a slowly sinking or spongy pedal, this replaces it; diagnose the brake system first, since other parts can cause the same symptoms. Country of origin: Taiwan.
Interchange: 83-32004 · 8332004 · M900048 · 100-2369 · 1002369 · M-83004 · M83004 · 11096 · 13-43207 · 1343207 · 10-43207 · 1043207 · 130.63004 · 2221353 · 2275368 · 2421353 · MC500960 · 355-40010 · 35540010 · 5463110 · 5463230 · 43207 · NM43207 · 2534330 · MC34330 · F34330 · F43207 · MC43207 · Manufacturer part number M43207
This part cross-references / interchanges with the following part numbers:
What vehicles does the M43207 master cylinder fit?
It's a direct-fit replacement for the 1960-1964 Plymouth Valiant, 1961-1962 Dodge Lancer, and 1963-1966 Dodge Dart (All). Check the Buyer's Guide tab to confirm your vehicle.
Does it include a reservoir?
Yes, the reservoir is included. It does not include a sensor, and mounting hardware is not supplied.
What is the bore size and outlet?
It has a 1 in bore and a single outlet, with a rearward outlet sized 7/16-24.
Is this master cylinder remanufactured?
No — it's 100% new, made entirely from new materials to meet rigorous SAE International standards, with a cast iron housing.
What are signs my master cylinder may need replacing?
A pedal that slowly sinks, feels spongy, or loses pressure can be signs. Have the brake system diagnosed first, since other components can cause the same symptoms.
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.