HomeBrake > Brake HydraulicsDorman M630741 Brake Master Cylinder
Part #: M630741

Dorman M630741 Brake Master Cylinder

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3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Kia, Spectra
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Reliable Brake Master Cylinder for Kia Spectra

The Dorman M630741 Brake Master Cylinder is designed specifically for Kia Spectra models, providing precise hydraulic control for your vehicle's braking system. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure optimal performance and safety.

  • Compatible with Kia Spectra models
  • Master cylinder bore diameter: 0.938 inches
  • Durable aluminum master cylinder material
  • Includes reservoir and sensor for accurate brake fluid management
  • Two outlets with rearward outlet size M10 x 1.0 and 10mm secondary outlet thread diameter
  • Thread pitch of 1.0 for secure connections
  • Mounting hardware not included

Product Details and Specifications

The Dorman M630741 brake master cylinder is engineered with a 0.938-inch bore diameter, ensuring proper hydraulic pressure for the Kia Spectra's braking system. Constructed from aluminum, this master cylinder offers corrosion resistance and durability under demanding conditions. It comes complete with a reservoir and an integrated sensor, which monitors brake fluid levels to maintain system integrity. The unit features two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet with a 10mm thread diameter, both with a thread pitch of 1.0 for reliable brake line connections. Note that mounting hardware is not included with this part.

Common Applications and Problem Resolution

  • Replaces worn or leaking brake master cylinders on Kia Spectra vehicles
  • Addresses brake fluid leaks and pressure loss issues
  • Restores proper brake pedal feel and responsiveness
  • Fixes brake warning light activation due to sensor faults
  • Improves overall brake system reliability and safety

Installation Notes and Tips

When installing the Dorman M630741 master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic pressure. Verify compatibility with your specific Kia Spectra model year before installation. Since mounting hardware is not included, retain or source the necessary bolts and fittings. Handle the aluminum master cylinder carefully to avoid damage to the sensor and reservoir components.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The M630741 brake master cylinder undergoes rigorous quality checks to ensure durability and performance. Please refer to Dorman's warranty policy for coverage details on this part.

BrandDorman
Part NumberM630741
Master Cylinder Bore Diameter0.938
Master Cylinder MaterialAluminum
Mounting Hardware IncludedNo
Number of Outlets2
Package ContentsMaster Cylinder
Rearward Outlet SizeM10 X 1.0
Reservoir IncludedYes
Secondary Outlet Thread Diameter10
Sensor IncludedYes
Thread Pitch1.0

This part fits 3 vehicles. Search below:

YearMakeModelBody TypeTransmissionLitersCylindersPositionNotes
2004KiaSpectraSedanManual1.8LL4N/AFits 15/16" bore size drum brakes on multiple vehicle models.
2003KiaSpectraSedanManualN/AFits 15/16" bore size drum brakes on multiple vehicle models.
2002KiaSpectraSedanManualN/AFits 15/16" bore size drum brakes on multiple vehicle models.

* 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:

0K2N34340013-3365M130.50008F144191MC391018

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