Brake Master Cylinder for 2009-2018 Mini Cooper & More - Dorman M630809

Keep hydraulic pressure moving to every wheel with the Dorman First Stop brake master cylinder, part number M630809. It is designed to match the original master cylinder's design, function and performance on many vehicles, among them the 2009-2018 Mini Cooper, 2016-2018 Mini Cooper Clubman and 2011-2018 Mini Cooper Countryman; see the Buyer's Guide tab for the full list.

When you press the pedal, the master cylinder turns that force into hydraulic pressure and sends brake fluid through its two outlets to the brake circuits. This Dorman unit is made of new, high-quality materials for a safe, durable replacement.

• Precise replacement: the aluminum cylinder housing is built to match the original part's material and is intended to deliver similar performance.
• Durable design: every rubber component is made from 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.

Specifications: 0.938 in bore diameter · 2 outlets · primary outlet thread pitch 1 mm · rearward outlet size M12 x 1.0 · secondary outlet thread M12 x 1.0. The package contains the master cylinder only. The reservoir, sensor and mounting hardware are not included, so transfer or replace them as directed by the vehicle's service procedure. Country of origin: Taiwan.

Signs a master cylinder may need replacing include a soft or spongy pedal, a pedal that slowly sinks under steady pressure, or brake fluid leaking at the unit. If a failed master cylinder is the cause, this unit replaces it. Bleed the brake system according to the vehicle service information after installation.

Interchange: 100-2954 · 13-4205 · 11-4205 · 130.34202 · 355-32002
34336772855 · 34336786585 · NM55461 · MC391366 · F143560 · MC143560 · 1002954 · 134205 · 114205 · 13034202 · 35532002