Dorman M64885 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet Vehicles

The Dorman M64885 brake master cylinder is designed to restore proper brake hydraulics in select Chevrolet models. Engineered with cast iron construction and a built-in reservoir, this master cylinder ensures consistent brake fluid delivery for safe stopping performance.

Key Features of the Dorman M64885 Brake Master Cylinder

• Master cylinder bore diameter: 1 inch for precise hydraulic pressure
• Durable cast iron material for long-lasting strength
• Includes reservoir for brake fluid storage
• Two outlet ports with secondary outlet thread diameter of 0.5 inches
• Rearward outlet size: 9/16-18 thread for secure brake line connection
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

The Dorman M64885 brake master cylinder is specifically designed for use in Chevrolet vehicles such as the Bel Air, Blazer, C10 Suburban, C20 Suburban, Caprice, G10, Impala, K10 Suburban, and K20 Suburban. Its cast iron construction provides durability and resistance to wear, while the integrated reservoir simplifies brake fluid management. Featuring a 1-inch bore diameter, this master cylinder delivers consistent hydraulic pressure to the brake system. The two outlet ports, including a rearward outlet with a 9/16-18 thread size and a secondary outlet with a 0.5-inch thread diameter, allow for proper brake line connections tailored to these Chevrolet models.

Common Applications and Issues Addressed

• Restores brake fluid pressure in Chevrolet Bel Air and Blazer brake systems
• Replaces worn or leaking master cylinders in C10 and C20 Suburban models
• Solves brake pedal sinking or sponginess in Caprice and Impala vehicles
• Addresses brake fluid reservoir leaks or damage in K10 and K20 Suburban trucks
• Ensures proper brake hydraulics for safe stopping performance

Installation Notes and Tips

• Verify compatibility with your Chevrolet model before installation
• Brake system should be properly bled after installation to remove air
• Mounting hardware is not included; reuse existing hardware or source separately
• Inspect brake lines and fittings for wear or damage during replacement
• Follow manufacturer torque specifications for outlet fittings

Quality Assurance and Warranty Information

Dorman manufactures the M64885 brake master cylinder to meet or exceed OEM standards for fit and function. The cast iron construction and integrated reservoir are designed for durability and reliable performance. While mounting hardware is not included, the product undergoes quality checks to ensure proper operation. Please refer to Dorman's warranty policy for specific coverage details.