Dorman M630938 Brake Master Cylinder

Reliable Brake Master Cylinder for Kia Soul

The Dorman M630938 brake master cylinder is engineered to restore proper brake hydraulics for your Kia Soul. Designed with durable cast iron and equipped with a removable reservoir, this master cylinder ensures consistent braking performance and safety.

• Compatible with Kia Soul models
• Master cylinder bore diameter: 0.8125 inches
• Constructed from durable cast iron material
• Includes removable reservoir for easy maintenance
• Equipped with sensor for brake system monitoring
• Two outlets with M12 x 1.0 thread size
• Rearward outlet and secondary outlet thread pitch: 1.0
• Package includes master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M630938 brake master cylinder is designed specifically for Kia Soul vehicles, providing a precise fit and reliable function. Its 0.8125-inch bore diameter allows for optimal hydraulic pressure transfer, while the cast iron construction offers strength and resistance to wear. The included removable reservoir simplifies fluid checks and refills, and the integrated sensor supports brake system diagnostics. Featuring two outlets with M12 x 1.0 thread size, this master cylinder supports efficient brake fluid distribution to the vehicle’s braking system.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from the master cylinder reservoir
• Resolves brake warning light issues related to sensor failure
• Improves brake pedal feel and responsiveness
• Addresses internal seal failures causing brake drag or spongy brakes

Installation Notes and Tips

Installation of the Dorman M630938 brake master cylinder requires basic brake system knowledge and tools. Ensure the brake fluid reservoir is properly filled and bled after installation to avoid air in the brake lines. Note that mounting hardware is not included, so retain original fasteners or acquire appropriate replacements. Verify sensor connections are secure to maintain brake system monitoring functionality.

Quality Assurance and Warranty

Dorman manufactures the M630938 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and integrated sensor contribute to long-term reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your replacement part.