Dorman M630029 Brake Master Cylinder

Reliable Brake Master Cylinder for Jeep Commander and Grand Cherokee

The Dorman M630029 brake master cylinder is engineered to restore proper brake hydraulics in your Jeep Commander or Grand Cherokee. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

• Master cylinder bore diameter: 1.063 inches for accurate fluid displacement
• Constructed from durable aluminum material for corrosion resistance
• Includes two outlets with M12 x 1.0 thread size for secure brake line connections
• Rearward outlet and secondary outlet both feature M12 x 1.0 thread pitch
• Package contains the master cylinder only; reservoir and sensor not included

Product Details and Specifications

The Dorman M630029 brake master cylinder is designed specifically for Jeep vehicles, including the Commander and Grand Cherokee models. Its 1.063-inch bore diameter provides precise hydraulic pressure control, essential for maintaining brake system integrity. Manufactured from aluminum, this master cylinder offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The part features two outlets, both with M12 x 1.0 thread pitch, allowing for straightforward integration with existing brake lines. Note that this unit does not include a reservoir or sensor, and mounting hardware is not provided.

Compatible Applications and Common Repairs

• Replacement for worn or leaking brake master cylinders on Jeep Commander and Grand Cherokee
• Restores proper brake fluid pressure to improve pedal feel and braking response
• Addresses issues such as brake fluid leaks, spongy brake pedal, or reduced braking efficiency
• Suitable for vehicles experiencing master cylinder internal seal failure or bore wear

Installation Notes and Tips

When installing the Dorman M630029 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify that the M12 x 1.0 threaded outlets match your vehicle’s brake line fittings. Since the reservoir and sensor are not included, reuse the existing components or replace separately if needed. Professional installation is recommended to ensure safety and proper brake system function.

Quality Assurance and Warranty Information

Dorman brake master cylinders are manufactured to meet or exceed OEM specifications, providing reliable performance for Jeep Commander and Grand Cherokee models. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Refer to the product packaging or manufacturer’s website for exact warranty terms.