Dorman M39385 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet Camaro and Pontiac Firebird

The Dorman M39385 brake master cylinder is engineered to restore proper brake hydraulics for Chevrolet Camaro and Pontiac Firebird models. Designed with durable cast iron construction and precise bore diameters, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Cast iron master cylinder material for strength and durability
• Dual bore diameters: 24 mm and 31.6 mm for balanced braking
• Includes reservoir for brake fluid storage
• Two outlet ports with rearward outlet size 1/2-20 and secondary outlet thread diameter 9/16-18
• Compatible with Chevrolet Camaro and Pontiac Firebird brake hydraulic systems
• Part number M39385 for accurate replacement

Product Details and Specifications

This Dorman brake master cylinder features a cast iron body that withstands the rigors of brake system pressure and heat. The dual bore diameters of 24 mm and 31.6 mm are designed to provide proper hydraulic force distribution between the front and rear brakes. The included reservoir allows for efficient brake fluid containment and circulation. With two outlets, including a rearward outlet sized 1/2-20 and a secondary outlet with a 9/16-18 thread diameter, this master cylinder integrates seamlessly with the brake lines of Chevrolet Camaro and Pontiac Firebird vehicles. The package contains the master cylinder unit only; mounting hardware is not included.

Common Applications and Problem Resolution

• Restores brake pressure in Chevrolet Camaro and Pontiac Firebird brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Fixes uneven braking due to master cylinder bore wear
• Prevents brake system failure from internal seal damage

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain hydraulic integrity. Verify compatibility with your specific Chevrolet Camaro or Pontiac Firebird model year before installation. Since mounting hardware is not included, retain or source the necessary components for secure installation. Use appropriate brake fluid and follow manufacturer torque specifications for outlet fittings.

Quality Assurance and Warranty

Dorman M39385 brake master cylinder is manufactured to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise bore sizing contribute to long service life and consistent brake performance. Warranty coverage details should be confirmed with the product documentation or supplier.