Raybestos MC39462 Brake Master Cylinder

Raybestos MC39462 Brake Master Cylinder

The Raybestos Element3 New MC39462 brake master cylinder is built for hydraulic brake system service with a 1.750-inch bore, iron construction, and a 4-hole mounting pattern. It features two ports with 3/4"-18 primary and 11/16"-18 secondary thread sizes for direct brake line connection on the correct application.

Key Features

• Brake master cylinder for brake hydraulics service
• Raybestos Element3; New product line
• Iron master cylinder body for durable hydraulic system use
• 1.750-inch bore size
• 4 mounting holes with 0.423-inch mounting hole diameter
• 2-port design with 3/4"-18 primary port thread and 11/16"-18 secondary port thread
• Cross-references Dorman - First Stop M39462 for the same application

Detailed Description

Raybestos MC39462 is a brake master cylinder engineered around the listed hydraulic and mounting specifications, making it a direct-match service part when the bore size, port threads, and mounting pattern align with the vehicle’s brake system. The Element3; New line identifies this as part of Raybestos’s current brake hydraulics offering, and the iron housing supports the demands of everyday brake pressure transfer. This part number, MC39462, is commonly searched for brake master cylinder replacement on Chevrolet and GMC applications where the original equipment layout uses the same 1.750-inch bore and dual-port configuration.

Compatible With Chevrolet and GMC brake master cylinder applications that match the listed port threads, bore size, and 4-hole mounting pattern. Search terms such as Raybestos MC39462 brake master cylinder, 1.750 bore master cylinder, and iron brake master cylinder replacement help identify the correct hydraulic component for the vehicle.

What It Helps Address

• Brake pedal travel that feels excessive due to master cylinder wear
• Internal hydraulic leakage in the brake master cylinder
• Loss of consistent brake pressure at the pedal
• Brake fluid bypass past worn internal seals
• Replacement needs after corrosion or housing wear in the hydraulic unit

Installation Notes and Tips

Verify bore size, mounting hole quantity, mounting hole diameter, and both port thread sizes before installation. Confirm the brake line fittings match the 3/4"-18 primary port and 11/16"-18 secondary port threads, and compare the existing master cylinder layout to the vehicle’s brake hydraulics configuration. For fitment-based searches, use phrases such as Fits Chevrolet and GMC brake master cylinder applications with the same hydraulic specifications, and confirm the exact vehicle match before service. Bleed the brake system thoroughly after installation to remove trapped air and restore proper pedal feel.

Quality Assurance

Raybestos is a recognized brake parts brand with a dedicated Element3; New line for hydraulic and friction service components. MC39462 is built to the listed dimensional and connection specifications so technicians can match the replacement part to the original brake system requirements.