Dorman M390292 Brake Master Cylinder

Reliable Brake Master Cylinder for Lexus and Toyota Vehicles

The Dorman M390292 brake master cylinder is engineered to provide consistent hydraulic pressure for your braking system. Designed specifically for select Lexus and Toyota models, this master cylinder ensures proper brake fluid management and sensor integration for optimal performance.

• Master cylinder bore diameter: 1 inch for precise hydraulic control
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with a sensor to monitor brake system status
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Compatible with Lexus Avalon, Toyota Camry, ES300, and Solara models

Product Features and Specifications

This Dorman brake master cylinder (part number M390292) features a 1-inch bore diameter that delivers consistent hydraulic pressure to your vehicle's braking system. The aluminum construction offers durability and resistance to corrosion, extending the service life of the component. The included reservoir allows for proper brake fluid containment, while the integrated sensor provides real-time monitoring of brake fluid levels or pressure, depending on the vehicle's system requirements. The master cylinder has two outlets, with the secondary outlet thread diameter measuring 10 mm and a rearward outlet size of M10 x 1.0, ensuring compatibility with the brake lines on Lexus Avalon and Toyota Camry, ES300, and Solara models. The thread pitch of 1.0 supports secure and leak-free connections.

Compatible Vehicles and Applications

This brake master cylinder is compatible with the following vehicles:

• Lexus Avalon
• Toyota Camry
• Toyota ES300
• Toyota Solara

It is designed to replace the original master cylinder in these models, restoring proper brake hydraulics and sensor functionality.

Common Issues Addressed by This Master Cylinder

• Brake pedal feels spongy or soft due to internal leaks
• Brake fluid leaks around the master cylinder or reservoir
• Brake warning light triggered by faulty sensor or fluid level
• Reduced braking performance or inconsistent brake pressure
• Corrosion or wear in the original aluminum master cylinder

Installation Notes and Tips

Installation of the Dorman M390292 brake master cylinder requires careful attention to brake fluid handling and bleeding procedures. Note that mounting hardware is not included, so retain original fasteners or acquire appropriate replacements. Ensure all brake lines are securely connected to the two outlets, matching the M10 x 1.0 thread specifications. After installation, properly bleed the brake system to remove air and verify sensor connections for accurate brake system monitoring.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor are tested for durability and reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components to cover defects in materials and workmanship.