Raybestos MC39524 Professional Grade Brake Master Cylinder

The Raybestos MC39524 is a professional grade replacement brake master cylinder engineered to match original equipment fit, form, and function. As the hydraulic heart of the braking system, the master cylinder converts brake pedal force into hydraulic pressure, delivering the stopping power needed for safe, confident braking.

This unit features a single-bore dual hydraulic channel design and is built to OE specifications, ensuring a direct-fit replacement with no modifications required. Raybestos matches the original equipment casting material — whether aluminum or cast iron — so the unit installs and performs exactly as intended.

Key Features:

• Single-bore dual hydraulic channel construction
• Manufactured to original equipment specifications for precise fit and function
• Matches OE casting material — aluminum or cast iron as applicable
• 100% pressure tested in both hot and cold environments for leak-free performance
• Includes reservoir and float switch where required by the original application
• 3-port design with primary port thread M12x1 and secondary port thread M10x1
• Part of the Raybestos Element3 New Master Cylinder line — a brand-new unit, not remanufactured

Raybestos has been a trusted name in brake components since 1902. The MC39524 delivers reliable hydraulic performance and restores proper pedal feel, ensuring the brake shoes engage and disengage smoothly and predictably.