HomeBrake > Brake HydraulicsDorman M630538 Brake Master Cylinder
Part #: M630538

Dorman M630538 Brake Master Cylinder

⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Scion and Toyota, Echo and xA
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Reliable Brake Master Cylinder for Toyota Echo and Scion xA

The Dorman M630538 Brake Master Cylinder is engineered to restore proper brake hydraulics for Toyota Echo and Scion xA models. Designed with precision, this master cylinder includes a reservoir and sensor to ensure consistent brake fluid management and system monitoring.

Key Features of the Dorman M630538 Brake Master Cylinder

  • Master cylinder bore diameter of 0.813 inches for accurate hydraulic pressure
  • Constructed from durable aluminum material for corrosion resistance and longevity
  • Includes an integrated reservoir for brake fluid storage
  • Equipped with a sensor to monitor brake system status
  • Two outlet ports with rearward outlet size M10 x 1.0 and thread pitch of 1.0
  • Secondary outlet thread diameter of 10 mm

Detailed Product Description

This Dorman brake master cylinder (part number M630538) is specifically designed for Toyota Echo and Scion xA vehicles, ensuring compatibility and reliable performance. The aluminum construction provides strength while resisting corrosion, which is critical for brake system components exposed to harsh conditions. The 0.813-inch bore diameter allows for precise hydraulic pressure control, essential for effective braking response. The included reservoir simplifies installation and maintenance by providing a ready-to-use brake fluid container. Additionally, the integrated sensor supports brake system diagnostics by monitoring fluid levels or pressure, depending on vehicle configuration. The two outlet ports with standardized thread sizes facilitate secure connections to brake lines, maintaining system integrity.

Common Brake Issues Addressed by This Master Cylinder

  • Spongy or unresponsive brake pedal due to master cylinder wear
  • Brake fluid leaks from a damaged or corroded master cylinder
  • Brake warning light activation caused by sensor failure or fluid level issues
  • Uneven braking performance resulting from improper hydraulic pressure
  • Brake system failure symptoms linked to faulty master cylinder components

Installation Notes and Tips

  • Ensure the brake system is properly bled after installation to remove air pockets
  • Verify compatibility with Toyota Echo and Scion xA models before installation
  • Use appropriate brake fluid as specified by the vehicle manufacturer
  • Check sensor connections for secure fit and proper operation
  • Inspect brake lines and fittings for damage or wear during replacement

Quality Assurance and Warranty Information

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.

BrandDorman
Part NumberM630538
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter0.813
Master Cylinder MaterialAluminum
Reservoir IncludedYes
Secondary Outlet Thread Diameter10
Sensor IncludedYes
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet SizeM10 x 1.0
Thread Pitch1.0

This part fits 9 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2006ScionxAAutomaticN/ABore: 13/16 In.; w/Reservoir; wo/Moonroof
2005ScionxAAutomaticN/ABore: 13/16 In.; w/Reservoir; wo/Moonroof
2005ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir
2004ScionxAAutomaticN/ABore: 13/16 In.; w/Reservoir; wo/Moonroof
2004ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir
2003ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir
2002ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir
2001ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir
2000ToyotaEchoAutomaticN/ABore size 13/16 In. with included reservoir

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

11-332313-3323140664720752011F143162MC391087

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.