HomeBrake > Brake HydraulicsDorman M630671 Brake Master Cylinder
Part #: M630671

Dorman M630671 Brake Master Cylinder

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⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Honda, Fit and Insight
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Overview of Dorman Brake Master Cylinder M630671

The Dorman Brake Master Cylinder M630671 is designed specifically for Honda Fit and Insight models, providing reliable brake hydraulics performance. Crafted from durable aluminum, this master cylinder ensures consistent braking pressure and long-lasting operation.

  • Compatible with Honda Fit and Honda Insight models
  • Master cylinder bore diameter: 1.063 inches
  • Constructed from lightweight aluminum material
  • Includes two outlets with M12 x 1.0 thread size
  • Does not include reservoir, sensor, or mounting hardware

Detailed Product Features and Specifications

This Dorman brake master cylinder (part number M630671) features a 1.063-inch bore diameter, which is critical for maintaining proper hydraulic pressure in the brake system. The aluminum construction offers corrosion resistance and reduces overall weight compared to traditional cast iron units. It includes two outlets, both with M12 x 1.0 thread pitch, designed for secure connection to brake lines. Note that the reservoir and sensor are not included with this unit, and mounting hardware must be sourced separately.

Compatible Vehicles and Applications

This master cylinder is engineered for use with Honda Fit and Honda Insight vehicles, ensuring proper fitment and function. It is ideal for replacing worn or damaged master cylinders in these models to restore braking performance.

  • Restores brake pressure loss due to worn master cylinder bore
  • Addresses brake fluid leaks from the master cylinder
  • Resolves spongy or unresponsive brake pedal feel
  • Replaces damaged or corroded aluminum master cylinders

Installation Notes and Tips

When installing the Dorman M630671 master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Since mounting hardware and reservoir are not included, verify compatibility with existing components or acquire necessary parts before installation. Use appropriate thread sealant on outlet fittings to prevent leaks.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for Honda Fit and Insight models. 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 manufacturer for exact warranty terms.

BrandDorman
Part NumberM630671
Master Cylinder Bore Diameter1.063
Master Cylinder MaterialAluminum
Mounting Hardware IncludedNo
Number of Outlets2
Package ContentsMaster Cylinder
Rearward Outlet SizeM12 X 1.0
Reservoir IncludedNo
Secondary Outlet Thread DiameterM12 X 1.0
Sensor IncludedNo
Thread Pitch1.0

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
2014HondaFitN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2014HondaInsightN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2013HondaFitN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2013HondaInsightN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2012HondaFitN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2012HondaInsightN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2011HondaFitN/ABore: 1.0625 In.; w/Navigation System
2011HondaInsightN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2010HondaFitN/ABore: 1.0625 In.; w/Navigation System
2010HondaInsightN/ADrum brake wheel cylinder with a size of 1.0625 inches.
2009HondaFitN/ABore: 1.0625 In.; w/Navigation System

* 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:

11-433113-4331130.4007746101TK6306F143697MC391363

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