Dorman M80568 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet, Dodge, and Oldsmobile

The Dorman M80568 brake master cylinder is engineered to provide consistent hydraulic pressure for your vehicle's braking system. Designed specifically for select Chevrolet, Dodge, and Oldsmobile models, this master cylinder ensures dependable performance and safety on the road.

• Master cylinder bore diameter: 1.125 inches for precise hydraulic control
• Constructed from durable cast iron for long-lasting strength
• Includes reservoir for brake fluid storage and management
• Two outlet ports with secondary outlet thread diameter of 0.5 inches
• Rearward outlet size of 9/16-18 for secure brake line connections
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

The Dorman M80568 brake master cylinder is built with a cast iron body, providing robust durability and resistance to wear. Its 1.125-inch bore diameter is designed to deliver consistent hydraulic pressure, essential for effective braking. This master cylinder includes a reservoir to hold brake fluid, ensuring proper fluid supply to the braking system. Featuring two outlets, it supports dual-circuit brake systems commonly found in vehicles like the Chevrolet C10 Suburban, Dodge Ramcharger, and Oldsmobile Delta 88. The secondary outlet thread diameter of 0.5 inches and rearward outlet size of 9/16-18 allow for secure and compatible brake line fittings.

Compatible Vehicles and Applications

This brake master cylinder is compatible with a range of Chevrolet, Dodge, and Oldsmobile models, including:

• Chevrolet B300, C10 Suburban, Camaro, K10 Suburban
• Dodge D100, D150, D200, D300, Ramcharger, W100, W150, W200
• Oldsmobile Delta 88

Use the Dorman M80568 to replace worn or failing master cylinders in these vehicles to restore proper brake function.

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal leaks
• Reduced hydraulic pressure causing poor braking response
• Brake fluid reservoir leaks or contamination
• Failure of dual outlet ports affecting brake line pressure
• Corrosion or wear in cast iron master cylinder body

Installation Notes and Tips

• Ensure brake system is fully depressurized before removal
• Bleed the brake system thoroughly after installation to remove air
• Check compatibility with vehicle brake line fittings using outlet thread sizes
• Mounting hardware is not included; reuse existing hardware or source separately
• Inspect brake lines and hoses for wear during installation

Quality Assurance and Warranty

Dorman manufactures the M80568 brake master cylinder to meet or exceed OEM specifications for fit and function. The cast iron construction and included reservoir contribute to reliable brake system performance. While mounting hardware is not included, the product undergoes quality checks to ensure durability and proper operation. Warranty details are provided by Dorman and should be verified at the time of purchase.