Turn brake-pedal force into the hydraulic pressure that operates the braking system with the Dorman First Stop Brake Master Cylinder M630815. It installs as a direct-fit replacement for the 2008-2011 Scion xD (All engines), and Dorman precision-engineers it to reproduce the design, function, and performance of the original master cylinder on those applications.
Specifications include two outlets, a 0.875 in bore diameter, and M10 x 1.0 outlet threads. 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. Country of origin: Taiwan.
Interchange: 100-3733 · 1003733 · 13-4023 · 134023 · 11-4023 · 114023 · 130.44508 · 130.44512 · 355-91004 · 35591004 · NM55465 · MC391293 · 4720152430 · 4720152432 · F143683 · MC143683. Manufacturer part number M630815 · Part Eazy SKU M630815.
This part cross-references / interchanges with the following part numbers:
What vehicles does this master cylinder fit?
It's a direct-fit replacement for the 2008-2011 Scion xD (All engines). Check the Buyer's Guide tab to confirm your exact 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.
What are the key specs?
It has two outlets, a 0.875 in bore diameter, and M10 x 1.0 outlet threads.
Is this unit new or remanufactured?
It's 100% new, built entirely of new materials rather than remanufactured, with EPDM rubber seals that resist glycol-based brake fluid.
What are signs the master cylinder may need replacing?
Signs may include a sinking or spongy brake pedal or brake fluid leaking at the cylinder. Diagnose the cause before replacing, as other components can produce these symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.