Raybestos MC39721 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda 323 and Mercury Tracer

The Raybestos Element3; New Brake Master Cylinder MC39721 is engineered to restore precise brake hydraulics for Mazda 323 and Mercury Tracer models. Designed with durable aluminum construction and specific mounting features, this master cylinder ensures consistent brake performance.

Key Features of Raybestos MC39721 Brake Master Cylinder

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with a diameter of 0.344 inches for secure installation
• Bore size of 0.875 inches optimized for brake fluid pressure control
• Two ports with M10x1 primary port thread for reliable hydraulic connections
• Compatible with Mazda 323 and Mercury Tracer brake hydraulic systems

Detailed Description of the Element3; New Brake Master Cylinder

This Raybestos Element3; New brake master cylinder (part number MC39721) is designed to meet the specific hydraulic requirements of Mazda 323 and Mercury Tracer vehicles. The aluminum master cylinder material offers a balance of strength and corrosion resistance, which is critical for maintaining brake system integrity over time. Featuring two mounting holes sized at 0.344 inches in diameter, it provides a secure fit to the vehicle’s brake assembly. The 0.875-inch bore size is calibrated to deliver consistent brake fluid pressure, ensuring responsive braking. Additionally, the two ports, including a primary port with M10x1 threading, facilitate proper hydraulic line connections for efficient brake fluid flow.

The Element3; New product line from Raybestos focuses on delivering reliable replacement parts that meet or exceed OEM specifications. This line emphasizes quality materials and precise engineering to support the longevity and safety of brake systems in compatible vehicles.

Common Applications and Issues Addressed

• Replacement for worn or leaking brake master cylinders on Mazda 323 and Mercury Tracer
• Restores proper hydraulic pressure for improved brake pedal feel
• Eliminates brake fluid leaks caused by damaged seals or corrosion
• Resolves inconsistent braking performance due to master cylinder wear
• Supports brake system maintenance and safety compliance

Installation Notes and Tips

• Ensure compatibility with Mazda 323 or Mercury Tracer before installation
• Inspect mounting holes and port threads for damage prior to fitting
• Use proper torque specifications on mounting bolts to avoid leaks or misalignment
• Bleed the brake system thoroughly after installation to remove air
• Check brake fluid levels and top off with manufacturer-recommended fluid

Quality Assurance and Warranty Information

Raybestos Element3; New brake master cylinders are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number MC39721 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship. This part is designed to provide consistent operation within the brake hydraulic system of Mazda 323 and Mercury Tracer vehicles.