Dorman M39639 Brake Master Cylinder

Reliable Brake Master Cylinder for Dodge, Hyundai, and Mitsubishi

The Dorman M39639 brake master cylinder is engineered to restore proper brake hydraulics in select Dodge, Hyundai, and Mitsubishi vehicles. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

Key Features of the Dorman M39639 Brake Master Cylinder

• Constructed from durable aluminum for corrosion resistance and longevity
• Includes an integrated reservoir for brake fluid storage
• Equipped with a sensor to monitor brake system status
• Master cylinder bore diameter of 0.813 inches for accurate fluid displacement
• Two outlet ports with a secondary outlet thread diameter of 10 mm and rearward outlet size of M10 x 1.0
• Thread pitch of 1.0 ensures secure hydraulic connections

Detailed Product Description

The Dorman M39639 brake master cylinder is designed specifically for use in Dodge Colt, Hyundai Excel, Mitsubishi Mirage, and Mitsubishi Precis models. Its aluminum construction provides a lightweight yet robust solution resistant to corrosion and wear. The included reservoir allows for proper brake fluid containment, while the built-in sensor helps maintain system integrity by detecting fluid levels or pressure changes. With a bore diameter of 0.813 inches, this master cylinder delivers precise hydraulic pressure to the brake system. The two outlet ports, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0, facilitate proper brake line connections. The 1.0 thread pitch ensures compatibility with OEM brake fittings.

Common Applications and Issues Addressed

• Restores brake fluid pressure in vehicles experiencing soft or spongy brake pedal feel
• Replaces worn or leaking master cylinders causing brake fluid loss
• Resolves brake warning light activation related to sensor or fluid level issues
• Improves braking response in Dodge Colt, Hyundai Excel, Mitsubishi Mirage, and Precis models
• Addresses hydraulic leaks due to damaged or corroded master cylinder components

Installation Notes and Tips

• Ensure brake system is properly bled after installation to remove air pockets
• Verify compatibility with vehicle make and model before installation
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Inspect brake lines and fittings for wear or damage during replacement
• Do not reuse old mounting hardware; secure master cylinder firmly to prevent leaks

Quality Assurance and Warranty

Dorman manufactures the M39639 brake master cylinder to meet or exceed OEM specifications 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 materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.