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Dorman - First Stop Brake Master Cylinder P/N:M390550
$151.99
Turn pedal pressure into the hydraulic force that works every brake circuit with the Dorman - First Stop Brake Master Cylinder M390550. It installs as a direct-fit replacement for the 1999-2000 Honda Civic [All], and Dorman precision-engineers it to match the design, function, and performance of the original master cylinder on those applications.
- 100% new build: made entirely of new materials, not remanufactured, for consistent quality and safety.
- Aluminum housing: cast to match the original part's casting material for similar performance.
- EPDM rubber components: a high-quality EPDM compound resists glycol-based brake fluid.
- Built to spec: made to meet rigorous SAE International standards.
This unit has a 0.938 in bore and two outlets, both with M10 x 1.0 threads (1 mm pitch). The reservoir and fluid-level sensor are included; mounting hardware is not, so consult the vehicle service information for the correct fasteners and whether they may be reused. Signs the master cylinder may need replacing include a brake pedal that slowly sinks to the floor, a spongy pedal, or fluid seeping at the cylinder; diagnose the cause before replacing. Country of origin: Taiwan.
Interchange: M901353 · 100-1349 · 1001349 · M54043 · 072-9457 · 0729457 · 13495 · 13-2889 · 132889 · 10-2575 · 102575 · 11-2889 · 112889 · 130.40047 · 13040047 · 130.40050 · 13040050 · MC500630 · 355-59029 · 35559029 · 46100S04L71 · 46100S04L72 · M55130 · MC390550 · MC390817 · F110988 · F140089
This part cross-references / interchanges with the following part numbers:
M901353, 100-1349, M54043, 072-9457, 13495, 13-2889, 10-2575, 11-2889, 130.40047, 130.40050, MC500630, 355-59029, 46100S04L71, 46100S04L72, M55130, MC390550, MC390817, F110988, F140089, MC140089
Frequently Asked Questions
Does this master cylinder fit my Honda Civic?
Yes—it's a direct-fit replacement for the 1999-2000 Honda Civic [All]. Check the Buyer's Guide tab to confirm it matches your specific vehicle.
Are the reservoir and sensor included?
Yes, the reservoir and fluid-level sensor are included. Mounting hardware is not; consult the vehicle service information for the correct fasteners and whether they may be reused.
Is this part new or remanufactured?
It's 100% new, made entirely of new materials—not remanufactured—and built to meet rigorous SAE International standards.
What are the outlet and bore specifications?
It has two outlets, both with M10 x 1.0 threads at a 1 mm pitch, and a 0.938 in bore diameter.
What are signs my master cylinder may need replacing?
A brake pedal that slowly sinks to the floor, a spongy pedal, or fluid leaking at the cylinder can be signs. Have the cause diagnosed before replacing, since other parts can cause these symptoms.
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Dorman - First Stop Brake Master Cylinder P/N:M390550
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