Dorman M630767 Brake Master Cylinder

Reliable Brake Master Cylinder for Kia Sephia and Spectra

The Dorman M630767 Brake Master Cylinder is designed to restore proper brake hydraulics for Kia Sephia and Spectra models. Engineered with an aluminum body and integrated reservoir, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Compatible with Kia Sephia and Kia Spectra vehicles
• Master cylinder bore diameter of 0.875 inches for precise hydraulic control
• Durable aluminum construction for corrosion resistance and longevity
• Includes reservoir and sensor for complete brake system integration
• Two outlets with rearward outlet size M10 x 1.0 and 10mm secondary outlet thread diameter
• Thread pitch of 1.0 for secure fitting
• Mounting hardware not included

Product Features and Specifications

This Dorman brake master cylinder (part number M630767) features a 0.875-inch bore diameter, which is critical for maintaining proper brake fluid pressure in the hydraulic system. The aluminum material offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The included reservoir allows for easy fluid monitoring and maintenance, while the integrated sensor supports vehicle brake system diagnostics. With two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet thread diameter of 10mm, this master cylinder is designed to fit precisely within the brake hydraulics of Kia Sephia and Spectra models.

Common Applications and Problem Resolution

• Restores brake fluid pressure for improved braking response
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses brake pedal sinking or sponginess due to internal seal failure
• Resolves ABS sensor issues related to master cylinder sensor malfunction
• Eliminates inconsistent brake pedal feel caused by worn components

Installation Notes and Tips

Installation of the Dorman M630767 brake master cylinder requires proper brake fluid handling and bleeding procedures to avoid air in the brake lines. Since mounting hardware is not included, retain original mounting bolts or source compatible hardware. Ensure the sensor connector is properly connected to maintain brake system monitoring. Verify thread pitch and outlet sizes match vehicle specifications before installation to ensure a secure fit.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable performance over time. While mounting hardware is not included, the product undergoes quality checks to ensure compatibility with Kia Sephia and Spectra models. Warranty coverage details can be obtained from the product documentation or manufacturer.