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Dorman - First Stop Brake Master Cylinder P/N:M39654
$78.99
Generate the hydraulic pressure your brakes rely on with the Dorman - First Stop Brake Master Cylinder M39654. When you press the pedal, the master cylinder converts that force into pressurized brake fluid sent through its outlets to the rest of the hydraulic system. It drops in on the 1986-1987 Mazda B2000 (All), 1987-1993 Mazda B2200 (All), and 1990-1993 Mazda B2600 (All).
Cast iron housing: the cylinder housing is cast iron, built to match the casting material of the original part for similar performance.
EPDM rubber components: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
100% new: made entirely of new materials, not remanufactured, and made to meet rigorous SAE International standards.
Configuration: three outlets with a 0.875 in bore; the rearward and secondary outlet threads are M10 x 1.0 and the primary outlet thread pitch is 1 mm. The reservoir and sensor are included; mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused.
Country of origin: Taiwan. Manufacturer part number M39654.
Frequently Asked Questions
Does this master cylinder include a reservoir and sensor?
Yes. The reservoir and sensor are both included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners.
Which vehicles does the M39654 fit?
It is a direct-fit replacement for the 1986-1987 Mazda B2000 (All), 1987-1993 Mazda B2200 (All), and 1990-1993 Mazda B2600 (All).
What is the bore diameter and outlet configuration?
It has a 0.875 in bore with three outlets. The rearward and secondary outlet threads are M10 x 1.0, and the primary outlet thread pitch is 1 mm.
Is this unit new or remanufactured?
It is 100% new, made entirely of new materials and not remanufactured. It is made to meet rigorous SAE International standards.
What are signs the master cylinder may need replacing?
A pedal that slowly sinks or feels spongy, or fluid loss without an obvious external leak, may point to a master cylinder. Diagnose the cause before replacing, as other components can share these signs.
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Dorman - First Stop Brake Master Cylinder P/N:M39654
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