Dorman M631034 Brake Master Cylinder

Reliable Brake Master Cylinder for Cadillac ATS and CTS

The Dorman M631034 brake master cylinder is engineered to restore proper brake hydraulics for Cadillac ATS and CTS models. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

• Constructed from durable aluminum for corrosion resistance
• Includes 2 mounting holes for secure installation
• Features a 1-inch master cylinder bore diameter
• Equipped with 2 outlets, including a rearward outlet sized M14 x 1.5
• Does not include mounting hardware, brake booster, reservoir, or push rod

Product Details and Specifications

The Dorman M631034 brake master cylinder is designed specifically for Cadillac ATS and CTS vehicles, providing a direct replacement for the original component. Its aluminum construction offers strength and longevity while resisting corrosion from brake fluid exposure. The master cylinder features a 1-inch bore diameter, which is critical for maintaining proper hydraulic pressure within the brake system. It has two outlets, including a secondary outlet with a 14mm thread diameter and a rearward outlet sized M14 x 1.5, allowing compatibility with the vehicle's brake lines. This part does not come with additional components such as mounting hardware, brake booster, reservoir, push rod, bleeder hoses, sensor, or mounting bracket, so these items must be reused or sourced separately.

Common Applications and Problem Resolution

• Restores brake fluid pressure for consistent pedal feel
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Eliminates brake system failure due to internal cylinder wear
• Prevents brake warning lights related to hydraulic faults

Installation Notes and Tips

Installation of the Dorman M631034 brake master cylinder requires careful attention to brake system bleeding procedures to remove air and ensure proper hydraulic function. Since mounting hardware and other components are not included, verify the condition of existing parts before installation. Use appropriate tools to secure the master cylinder via its two mounting holes. Confirm compatibility with your Cadillac ATS or CTS model year and brake system configuration before purchase.

Quality Assurance and Warranty Information

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit and function. The aluminum construction provides durability and resistance to corrosion, contributing to long service life. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.