Dorman - First Stop Brake Master Cylinder P/N:M390034

Send steady hydraulic pressure to every brake circuit with the Dorman - First Stop Brake Master Cylinder M390034. A brake master cylinder converts brake-pedal force into the hydraulic pressure that actuates the brake circuits, and this unit drops in as a direct-fit replacement engineered to match the design, function, and performance of the original on the listed application: the 1990-1997 Mazda Miata (All engines). It arrives 100% new — not remanufactured — with the reservoir and sensor included.

• Aluminum housing: constructed to match the casting material of the original part for similar performance.
• EPDM rubber components: all rubber parts use a high-quality EPDM compound for resistance to glycol-based brake fluid.
• Specs: aluminum body with a 0.875 in bore diameter and 3 outlets; secondary/rearward outlet threads are M10 x 1.0 with a 1 mm primary outlet thread pitch.
• Standards: made to meet SAE International standards.

Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.

Interchange: 18M570 · 83-14800 · 8314800 · M900778 · 100-1811 · 1001811 · M-53800 · M53800 · 072-8591 · 0728591 · 12535 · 13-2512 · 132512 · 11-2512 · 112512 · 130.45800 · 13045800 · MC250860 · 355-80099 · 35580099 · M52512 · NM52512 · NA0143400B · NA0143400D · NA014340Z · MC390034 · F120603 · MC120603. Manufacturer part number M390034.