Dorman M39438 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M39438

The Dorman Brake Master Cylinder M39438 is engineered for Chevrolet Corvette models requiring reliable brake hydraulics components. This master cylinder features a durable aluminum construction and includes a dual reservoir, designed to maintain optimal brake fluid pressure and performance.

• Compatible with Chevrolet Corvette vehicles
• Master cylinder bore diameter of 0.813 inches for precise hydraulic control
• Constructed from aluminum for corrosion resistance and durability
• Includes a dual reservoir to support separate brake circuits
• Comes with a master cylinder cap and reservoir included
• Features 2 mounting holes and 4 outlets for secure installation and fluid distribution
• Rearward outlet size M12 x 1.0 with a thread pitch of 1.0

Detailed Product Description

The Dorman M39438 brake master cylinder is designed specifically for Chevrolet Corvette models, providing a direct replacement for the original equipment. Its aluminum body offers enhanced resistance to corrosion and wear, ensuring long-term reliability in brake hydraulics. The 0.813-inch bore diameter is calibrated to deliver consistent hydraulic pressure, essential for effective braking performance. This master cylinder includes a dual reservoir, allowing for separate front and rear brake circuits, which improves safety by isolating brake fluid systems. The package includes the master cylinder and reservoir with a cap, but does not include mounting hardware, push rod, brake booster, bleeder hoses, sensor, or mounting bracket, so these components must be sourced separately if needed.

Common Applications and Issues Addressed

• Replacement for leaking or damaged master cylinders in Chevrolet Corvette brake systems
• Restores proper hydraulic pressure for improved brake pedal feel and responsiveness
• Resolves issues related to brake fluid contamination or reservoir damage
• Addresses brake system failures caused by worn or corroded master cylinder components
• Supports dual-circuit brake systems to maintain safety and compliance with vehicle specifications

Installation Notes and Tips

• Ensure compatibility with Chevrolet Corvette model year before installation
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function
• Mounting hardware is not included; retain original hardware or acquire appropriate replacements
• Inspect brake booster and push rod components separately as they are not included with this part
• Use proper torque specifications for mounting bolts to avoid damage or leaks

Quality Assurance and Warranty

Dorman manufactures the M39438 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and precise engineering contribute to consistent brake system performance. While specific warranty details should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in product reliability.