Raybestos MC35125 Brake Master Cylinder

Brake Master Cylinder Overview

Raybestos MC35125 is a brake master cylinder for classic Volkswagen applications, including the Beetle and Karmann Ghia. It is built with an iron body and a 0.750-inch bore for direct hydraulic control in the brake system.

Key Features

• Iron master cylinder construction for brake hydraulic service.
• 0.750-inch bore size for consistent fluid displacement.
• Three-port design with an M10x1 ISO primary port thread.
• Two mounting holes with an 8.000 mounting hole diameter.
• Element3 product line designation from Raybestos.

Detailed Description

This Raybestos brake master cylinder, part number MC35125, is specified for 1954-1964 Volkswagen Beetle and 1956-1964 Volkswagen Karmann Ghia applications. The iron housing provides a durable foundation for the hydraulic circuit, while the 0.750 bore size and three-port layout support the brake system’s fluid transfer requirements. The MC35125 is part of the Raybestos Element3 line, a product line positioned for brake service applications with application-specific fitment.

This part cross-references Dorman - First Stop (e.g., M93065) and Beck/Arnley (e.g., 072-8024) for the same application.

What It Is Used For

• Restoring brake pedal hydraulic response.
• Replacing a leaking or worn master cylinder.
• Addressing internal bypass that can affect pedal feel.
• Correcting fluid pressure loss in the brake circuit.

Installation Notes and Tips

Verify port thread size, mounting hole layout, and bore specification before installation. Confirm the application against the vehicle’s brake system configuration for the listed Volkswagen Beetle and Volkswagen Karmann Ghia fitments. Bleed the brake system thoroughly after installation and inspect all line connections for leaks.

Quality Assurance

Raybestos Element3 is a dedicated product line for brake service parts, and MC35125 is built to match the listed fitment and hydraulic specifications.