Dorman M39558 Brake Master Cylinder

Reliable Brake Master Cylinder for Toyota Cressida

The Dorman M39558 brake master cylinder is engineered to restore proper brake hydraulics for Toyota Cressida models. Designed with durable cast iron and a precise 0.875-inch bore diameter, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Compatible with Toyota Cressida vehicles
• Master cylinder bore diameter: 0.875 inches
• Constructed from durable cast iron material
• Includes reservoir for brake fluid
• Two outlet ports with rearward outlet size M10 x 1.0
• Secondary outlet thread diameter: 10 mm with 1.0 thread pitch
• Package includes master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M39558 brake master cylinder is designed specifically for Toyota Cressida brake hydraulics systems. Its cast iron construction provides strength and resistance to wear, while the 0.875-inch bore diameter matches OEM specifications for consistent brake pedal feel and hydraulic pressure. The included reservoir allows for proper brake fluid storage and circulation. This master cylinder features two outlets, including a rearward outlet sized M10 x 1.0, and a secondary outlet with a 10 mm thread diameter and 1.0 thread pitch, ensuring compatibility with the vehicle’s brake lines. Note that mounting hardware is not included with this part.

Common Applications and Problem Resolution

• Restores brake fluid pressure in Toyota Cressida brake systems
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Fixes brake failure symptoms related to master cylinder wear
• Ensures proper brake fluid reservoir function and fluid delivery

Installation Notes and Tips

When installing the Dorman M39558 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Since mounting hardware is not included, reuse existing hardware or acquire compatible fasteners. Verify thread sizes and outlet fittings match the vehicle’s brake lines before installation. Follow manufacturer torque specifications to avoid damage.

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. The M39558 part undergoes rigorous quality control to ensure durability and reliable performance in Toyota Cressida brake systems. Warranty coverage details can be obtained from the product documentation or Dorman directly.