Raybestos MC390560 Brake Master Cylinder

Raybestos MC390560 Brake Master Cylinder

The Raybestos MC390560 is a brake master cylinder for select Lexus applications, built with an aluminum body and a 1.060-inch bore for consistent hydraulic response. It is a direct-fit brake hydraulics replacement for 1995-2000 Lexus SC300 and 1995-2000 Lexus SC400 models without traction control.

Key Features

• Aluminum master cylinder construction
• 1.060-inch bore size for hydraulic pressure delivery
• 2 mounting holes with 0.354-inch mounting hole diameter
• 2 ports with M10x1 primary and secondary port threads
• Fits 1995-2000 Lexus SC300 and 1995-2000 Lexus SC400 without traction control
• Raybestos Element3; New product line

Product Details

Raybestos MC390560 is engineered as a brake master cylinder replacement for Lexus SC300 and Lexus SC400 vehicles in the 1995-2000 model years, with fitment limited to vehicles not equipped with traction control. The aluminum master cylinder housing helps keep weight down while maintaining the structural support needed for brake hydraulic operation. With a 1.060-inch bore and dual M10x1 ports, this unit matches the hydraulic connection requirements for the listed applications. This part cross-references Centric Parts 130.44222 for the same application.

The Raybestos Element3; New line focuses on replacement brake components built for straightforward service fitment and OE-style hydraulic compatibility. For shoppers searching for a Lexus SC300 brake master cylinder, Lexus SC400 brake master cylinder, or Raybestos MC390560 replacement, this part is listed for the specified non-traction-control vehicles only.

Common Problems This Part Can Address

• Brake pedal travel that feels excessive due to master cylinder wear
• Internal hydraulic leakage that reduces braking performance
• Loss of consistent brake pressure at the pedal
• Fluid seepage around the master cylinder body or ports
• Brake system performance issues on 1995-2000 Lexus SC300 and SC400 models without traction control

Installation Notes and Tips

Verify vehicle fitment by year, model, and traction control configuration before installation. Confirm the 2-port layout, M10x1 thread size, and mounting hole spacing against the original unit before connecting brake lines. After installation, bleed the brake system thoroughly to remove air from the hydraulic circuit and restore proper pedal feel.

Quality Assurance

Raybestos brake hydraulics are cataloged with application-specific fitment data and dimensional specifications to support accurate replacement selection. The MC390560 is identified for the listed Lexus SC300 and Lexus SC400 applications and should be matched to the vehicle’s brake system configuration before service.