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Dorman - First Stop Brake Master Cylinder P/N:M630059
$151.99
Turn every press of the brake pedal into the hydraulic pressure your brakes rely on with the Dorman - First Stop Brake Master Cylinder M630059. It's a direct-fit replacement for the listed Saturn applications, including the 2000 Saturn LS, LS1, LS2, LW1 and LW2, the 2001-2003 LW200 and LW300, the 2002 L100, the 2002-2003 L200, the 2002-2005 L300, and the 2007 Ion — all engines. See the Buyer's Guide tab for the complete list.
This unit is built new (not remanufactured) to send fluid through its two outlets to the brake circuits.
- Aluminum housing: the cylinder housing is cast 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.
- 100% new: made entirely of new materials, not remanufactured, and built to meet rigorous SAE International standards.
- Key specs: 1-inch bore, two outlets, with the reservoir and fluid-level sensor included; mounting hardware is not included.
Country of origin: China. Consult the vehicle service information for the correct fasteners and whether they may be reused.
Interchange: M901266 · 100-2337 · 1002337 · 13500 · 13-2957 · 132957 · 10-2957 · 102957 · 130.62124 · 131.62124 · MC511390 · 355-53002 · 35553002 · 21018891 · 22683095 · M4022 · NM4022 · MC390576 · F141137 · MC141137 · Manufacturer part number M630059.
This part cross-references / interchanges with the following part numbers:
M901266, 100-2337, 13500, 13-2957, 10-2957, 130.62124, 131.62124, MC511390, 355-53002, 21018891, 22683095, M4022, NM4022, MC390576, F141137, MC141137
Frequently Asked Questions
What does a brake master cylinder do?
It converts the force of your brake pedal into hydraulic pressure, sending brake fluid through its outlets to the brake circuits so the system can apply the brakes.
Does this master cylinder include a reservoir and sensor?
Yes. The reservoir and fluid-level sensor are both included per the catalog attributes. Mounting hardware is not included.
What are the key specs of this master cylinder?
It has an aluminum housing, a 1-inch bore, and two outlets. The rearward outlet is M10 x 1.0 and the secondary outlet thread is M12 x 1.0.
Which vehicles does the M630059 fit?
It's a direct-fit for the 2000 Saturn LS/LS1/LS2/LW1/LW2, 2001-2003 LW200/LW300, 2002 L100, 2002-2003 L200, 2002-2005 L300, and 2007 Ion. Check the Buyer's Guide tab.
What are signs the master cylinder may need replacing?
A brake pedal that sinks slowly, feels spongy, or brake fluid leaking near the unit can be signs. If a failed master cylinder is the cause, this part replaces it; diagnose first.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630059
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