Dorman - First Stop Brake Master Cylinder P/N:M630335
Turn every press of the brake pedal into hydraulic pressure for your brakes with the Dorman First Stop Brake Master Cylinder M99294. It is a direct-fit replacement for many Chrysler, Dodge and Plymouth models, among them the 1979-1989 Dodge Diplomat, the 1980-1983 Dodge Mirada and the 1979-1981 Dodge St. Regis; see the Buyer's Guide tab for the full list. Dorman engineered it to mirror the original master cylinder's design, function and performance on the listed applications, and it is built from new, high-quality materials for a safe, durable replacement.
Signs a master cylinder may need replacing include a soft or slowly sinking pedal, fluid seeping at the master cylinder, or a reservoir level that keeps dropping. These symptoms can have other causes, so diagnose the brake system before replacing parts. Follow the vehicle service procedure for installation and bleeding.
Specifications: The master cylinder is aluminum. It has a 1.031 in bore diameter and 2 outlets. The rearward outlet size is 1/2-20 and the secondary outlet thread is 9/16-20. The reservoir is included. Mounting hardware and a sensor are not included. The package contains one master cylinder. Country of origin: China.
Interchange: 783-32028 · 83-32028 · 100-2391 · M-83028 · 13-1822 · 10-1822 · 130.63028 · 131.63028 · 355-39008
78332028 · 8332028 · 1002391 · M83028 · 131822 · 101822 · 13063028 · 13163028 · 35539008 · 18M84 · M900245 · 11822 · 3766254 · 3766275 · 3880289 · 4205972 · 4318738 · MC99294 · 99294 · M1822 · NM1822 · MC39034 · F99294
This part cross-references / interchanges with the following part numbers:
Does the Dorman M99294 come with a reservoir?
Yes, the reservoir is included. Mounting hardware and a sensor are not, so consult your vehicle service information for the correct fasteners and whether the originals may be reused.
Which vehicles does this master cylinder fit?
It is listed for many Chrysler, Dodge and Plymouth models, among them the 1979-1989 Dodge Diplomat, 1980-1983 Dodge Mirada and 1979-1981 Dodge St. Regis. See the Buyer's Guide tab for the full list.
What are the rubber components made of?
All rubber components are made of a high-quality EPDM compound designed to resist glycol-based brake fluid.
What are signs my master cylinder may need replacing?
A soft or sinking pedal, fluid seeping at the master cylinder, or a dropping reservoir level may indicate wear. These symptoms can have other causes, so diagnose the brake system first.
What are the bore and outlet specifications?
The M99294 has a 1.031 in bore and 2 outlets. The rearward outlet size is 1/2-20 and the secondary outlet thread is 9/16-20.
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.