Dorman M630043 Brake Master Cylinder

Reliable Brake Master Cylinder for Cadillac DeVille

The Dorman M630043 brake master cylinder is engineered to restore proper brake hydraulics in your Cadillac DeVille. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance and safety.

• Master cylinder bore diameter: 34 mm for optimal hydraulic pressure
• Constructed from durable aluminum material
• Includes reservoir for fluid storage
• Equipped with sensor for brake system monitoring
• Two outlets with rearward outlet size M12 x 1.5 and 12 mm secondary outlet thread diameter
• Thread pitch of 1.5 for secure fitting

Product Details and Specifications

The Dorman M630043 brake master cylinder is specifically designed for the Cadillac DeVille, ensuring compatibility and reliable operation. Its 34 mm bore diameter provides the necessary hydraulic pressure for effective braking. Made from aluminum, this master cylinder offers corrosion resistance and long service life. The included reservoir allows for proper brake fluid containment, while the integrated sensor supports brake system diagnostics. Featuring two outlets, including a rearward outlet sized M12 x 1.5 and a secondary outlet with a 12 mm thread diameter, this part ensures proper brake line connections. The thread pitch of 1.5 guarantees a secure and leak-free installation.

Common Applications and Problem Resolution

• Restores brake pressure loss in Cadillac DeVille brake systems
• Replaces master cylinders with worn or damaged bores
• Addresses brake fluid leaks from the master cylinder reservoir
• Resolves brake warning light issues related to sensor failure
• Improves brake pedal feel and responsiveness

Installation Notes and Tips

When installing the Dorman M630043 brake master cylinder on your Cadillac DeVille, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify that the sensor connector is securely attached to maintain accurate brake system monitoring. Use appropriate tools to tighten outlets with the specified thread pitch of 1.5 to avoid leaks. Note that mounting hardware is not included and must be sourced separately if needed.

Quality Assurance and Warranty

Dorman manufactures the M630043 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.