Dorman M630340 Brake Master Cylinder

Reliable Brake Master Cylinder for Lexus RX330 and RX350

The Dorman M630340 brake master cylinder is designed specifically for Lexus RX330 and RX350 models, providing precise hydraulic control for your vehicle's braking system. Crafted from durable aluminum, this master cylinder includes a reservoir and features a 0.875-inch bore diameter to ensure consistent brake fluid pressure.

Key Features of the Dorman M630340 Brake Master Cylinder

• Compatible with Lexus RX330 and RX350 models
• Master cylinder bore diameter: 0.875 inches for accurate hydraulic performance
• Constructed from aluminum for strength and corrosion resistance
• Includes reservoir for brake fluid storage
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Secondary outlet thread diameter of 10 mm
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

The Dorman M630340 brake master cylinder is engineered to meet the hydraulic requirements of Lexus RX330 and RX350 vehicles. Its aluminum construction offers a balance of lightweight design and durability, helping to resist corrosion and wear over time. The 0.875-inch bore diameter is calibrated to maintain proper brake fluid pressure, ensuring responsive braking performance. This master cylinder includes a reservoir to hold brake fluid, simplifying maintenance and replacement. Featuring two outlets with precise thread specifications (rearward outlet M10 x 1.0, thread pitch 1.0), it integrates seamlessly with the brake hydraulic system of the specified Lexus models.

Common Applications and Issues Addressed

• Replacement for worn or leaking brake master cylinders on Lexus RX330 and RX350
• Restores proper brake fluid pressure and pedal feel
• Solves issues related to brake fluid leaks from the master cylinder
• Addresses spongy or unresponsive brake pedal performance
• Prevents brake system failure due to master cylinder wear or damage

Installation Notes and Tips

• Ensure compatibility with Lexus RX330 or RX350 before installation
• Brake fluid reservoir is included; verify fluid levels after installation
• Bleed the brake system thoroughly to remove air and ensure proper hydraulic function
• Mounting hardware is not included; retain original hardware or source separately
• Follow manufacturer torque specifications for outlet fittings and mounting bolts

Quality Assurance and Warranty

Dorman manufactures the M630340 brake master cylinder to meet or exceed OEM standards for fit and function on Lexus RX330 and RX350 models. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete information.