Raybestos MC39571 Brake Master Cylinder

Overview of Raybestos MC39571 Brake Master Cylinder

The Raybestos Element3; New MC39571 brake master cylinder is engineered for reliable brake hydraulics performance. Designed specifically for Chevrolet, GMC, and Oldsmobile models including Bravada, Jimmy, S10, S10 Blazer, S15, S15 Jimmy, and Sonoma, this part ensures precise brake fluid control and consistent stopping power.

• Constructed from durable aluminum for corrosion resistance and lightweight strength
• Features a 24.000 mm bore size for optimal hydraulic pressure
• Includes two mounting holes with a diameter of 0.433 inches for secure installation
• Equipped with two ports: primary port thread 1/2"-20 and secondary port thread 9/16"-18
• Compatible with multiple Chevrolet, GMC, and Oldsmobile truck and SUV models

Element3; New Product Line Details

The Element3; New line by Raybestos focuses on delivering brake hydraulics components that meet or exceed OEM specifications. This brake master cylinder is part of that line, offering precise bore sizing and port threading to match factory requirements. The aluminum construction supports durability and heat dissipation, making it suitable for demanding driving conditions in Chevrolet, GMC, and Oldsmobile vehicles.

Technical Description and Specifications

The MC39571 brake master cylinder is designed with a 24.000 mm bore size, which directly influences brake fluid displacement and pedal feel. Its aluminum body provides a balance of strength and corrosion resistance, essential for long-term brake system reliability. The two mounting holes, each with a 0.433-inch diameter, ensure a secure fit to the vehicle’s firewall or mounting bracket. The master cylinder includes two ports: a primary port with 1/2"-20 thread and a secondary port with 9/16"-18 thread, allowing compatibility with standard brake line fittings used in the specified Chevrolet, GMC, and Oldsmobile models.

Applications and Problem Solving

• Restores proper brake fluid pressure in Chevrolet S10 and S10 Blazer models
• Replaces worn or leaking master cylinders in GMC Jimmy and Sonoma vehicles
• Addresses brake pedal sinking or sponginess in Oldsmobile Bravada and S15 Jimmy
• Solves hydraulic leaks caused by damaged ports or seals
• Improves brake system responsiveness and safety

Installation Notes and Tips

When installing the Raybestos MC39571 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s firewall or bracket. Use the correct brake line fittings matching the 1/2"-20 and 9/16"-18 port threads to prevent leaks. Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic pressure. Verify compatibility with your specific Chevrolet, GMC, or Oldsmobile model before installation.

Quality Assurance and Warranty

Raybestos manufactures the MC39571 brake master cylinder to meet stringent quality standards. The aluminum construction and precise machining contribute to long service life and consistent performance. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.