Raybestos MC39952 Brake Master Cylinder

Reliable Brake Master Cylinder for Buick, Chevrolet, and Oldsmobile

The Raybestos Element3; New Brake Master Cylinder MC39952 is engineered to restore precise brake hydraulics for select Buick, Chevrolet, and Oldsmobile vehicles. Designed with durable aluminum construction and exact fitment specifications, this master cylinder supports safe and consistent braking performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.433-inch diameter for secure installation
• 28.6 mm bore size optimized for proper hydraulic pressure
• Two ports with M12x1 primary and M11x1.5 secondary port threads
• Compatible with Buick Caprice, Chevrolet Commercial Chassis, Custom Cruiser, and Oldsmobile Roadmaster

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This brake master cylinder MC39952 is part of that line, offering precise engineering and materials designed to maintain consistent brake fluid pressure and durability over time. The Element3; New series emphasizes quality construction and fitment accuracy for classic and late-model vehicles.

Detailed Product Description and Specifications

This brake master cylinder features an aluminum body that provides strength while resisting corrosion, essential for long-term brake system reliability. The 28.6 mm bore size ensures proper hydraulic force transmission to the brake calipers or wheel cylinders. It includes two mounting holes, each with a diameter of 0.433 inches, allowing for a secure and stable fit. The unit has two ports: a primary port with M12x1 threading and a secondary port with M11x1.5 threading, compatible with the brake lines on the specified vehicle models. The part number MC39952 identifies this exact configuration for easy reference and replacement.

Compatible Vehicles and Common Applications

• Restores brake hydraulic pressure in Buick Caprice models
• Replaces worn master cylinders on Chevrolet Commercial Chassis vehicles
• Supports brake system function in Chevrolet Custom Cruiser
• Suitable for Oldsmobile Roadmaster brake hydraulic repairs
• Addresses issues such as brake pedal sinking, fluid leaks, and inconsistent braking response

Installation Notes and Tips

• Ensure the mounting holes align precisely with the vehicle’s brake booster or firewall
• Use proper thread sealant or fittings compatible with M12x1 and M11x1.5 port threads
• Bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance
• Verify bore size compatibility with existing brake components before installation

Quality Assurance and Warranty Information

Raybestos manufactures the MC39952 brake master cylinder to meet stringent quality standards, ensuring reliable operation within the brake hydraulic system. The Element3; New line is designed for durability and consistent performance. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.