Raybestos MC39376 Brake Master Cylinder

Reliable Brake Master Cylinder for Buick and Chevrolet Models

The Raybestos Element3; New Brake Master Cylinder MC39376 is engineered to restore precise brake hydraulics for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed with durable aluminum construction and specific mounting features, this master cylinder ensures consistent brake performance for models like the Bonneville, Cutlass, and Monte Carlo.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.433-inch diameter for secure installation
• 24.000 mm bore size optimized for proper hydraulic pressure
• Two ports with threaded connections: primary port 1/2"-20, secondary port 9/16"-18
• Compatible with multiple GM makes and models including Buick Regal and Pontiac Grand Prix

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 MC39376 is part of that line, offering precise bore sizing and port threading to match factory requirements. The aluminum material provides a balance of strength and corrosion resistance, suitable for restoring brake system integrity on classic GM vehicles.

Detailed Product Description

This brake master cylinder features a 24.000 mm bore size designed to maintain proper hydraulic pressure for effective braking response. The two mounting holes, each with a 0.433-inch diameter, allow for a secure fitment on compatible vehicles. The master cylinder includes two ports: a primary port with 1/2"-20 thread and a secondary port with 9/16"-18 thread, ensuring compatibility with standard brake line fittings. Its aluminum construction offers durability while resisting corrosion, which is essential for long-term brake system reliability.

Common Applications and Issues Addressed

• Restores brake hydraulic pressure loss in Buick Cutlass and Oldsmobile Cutlass Calais
• Replaces worn or leaking master cylinders in Chevrolet El Camino and Pontiac Riviera
• Solves brake pedal sinking or sponginess in Buick Regal and Monte Carlo
• Addresses brake fluid leaks from damaged or corroded master cylinders
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Ensure compatibility with your vehicle’s make and model before installation
• Bleed the brake system thoroughly after installation to remove air
• Use proper torque specifications on mounting bolts to avoid damage
• Inspect brake lines and fittings for wear or damage during replacement
• Consult vehicle service manual for detailed installation procedures

Quality Assurance and Warranty

Raybestos manufactures the MC39376 brake master cylinder to meet stringent quality standards. The aluminum construction and precise machining ensure durability and reliable performance. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.