Generate the hydraulic pressure that pushes fluid to every wheel with the Dorman – First Stop Brake Master Cylinder M630848. When you step on the pedal, this master cylinder converts that force into the hydraulic pressure that operates the brake system. It's precision-engineered to match the design, function, and performance of the original unit, dropping in as a direct-fit replacement on the 2011-2014 Hyundai Sonata [All].
Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Signs the original master cylinder may need replacing include a pedal that slowly sinks under steady pressure, a spongy or fading pedal, or external fluid leakage. Country of origin: China.
Interchange: 100-3071 · 1003071 · 13-4445 · 134445 · 11-4445 · 114445 · 130.51059 · 355-03055 · 35503055 · 585103Q300 · 585103Q400 · NM55493 · MC391229 · R504445. Manufacturer part number M630848.
This part cross-references / interchanges with the following part numbers:
What vehicle does the M630848 master cylinder fit?
It's a direct-fit replacement for the 2011-2014 Hyundai Sonata [All]. Check the Buyer's Guide tab to confirm it matches your exact vehicle.
What does a brake master cylinder do?
It converts the force from your brake pedal into hydraulic pressure, sending brake fluid through the lines to operate the brakes at each wheel.
Is this master cylinder new or remanufactured?
It's 100% new, made entirely of new materials and not remanufactured. It's built to meet rigorous SAE International standards.
Is a reservoir or mounting hardware included?
The reservoir and a sensor are included. Mounting hardware is not; consult the vehicle service information for the correct fasteners and whether they may be reused.
What are the master cylinder's key specs?
It's aluminum with a 0.875 in bore diameter, a single reservoir, two outlets, and an M12 x 1.0 outlet thread with a 1 mm 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.