Dorman - First Stop Clutch Master Cylinder P/N:CM640208

Convert clutch-pedal effort into the hydraulic pressure that disengages your clutch with the Dorman – First Stop Clutch Master Cylinder CM640208 — a direct-fit replacement for the 2006-2012 Mazda MX-5 Miata [L4-2.0L]. Reverse-engineered from the original equipment, it's built to install and operate like the factory clutch master on that application.

• Direct replacement: designed to match the original clutch master cylinder's fit and function on the listed vehicle for a straightforward swap.
• Key specs: 0.625 in. inside diameter (bore), piston-type cylinder, and a single M10 x 1.0 outlet.
• Durable materials: cast-iron body with high-grade rubber components compatible with standard brake fluid.
• Please note: a fluid reservoir is not included, and the cylinder is not pre-bled or pre-filled.

The clutch master cylinder generates the hydraulic pressure that acts on the slave cylinder to disengage the clutch when you press the pedal. Signs it may need replacing include fluid leaks, a soft or spongy pedal, and difficulty shifting — if a failed master cylinder is the cause, this unit replaces it. Backed by U.S.-based engineering and quality-control teams. Country of origin: Taiwan. Ships as one clutch master cylinder.

Interchange: 0729710 · 136.45802 · NE5141990A · 800112 · CM142257

Manufacturer part number CM640208.