Dorman M39453 Brake Master Cylinder

Reliable Brake Master Cylinder for Isuzu Pickup and Trooper

The Dorman M39453 brake master cylinder is designed to restore proper brake hydraulics in your Isuzu Pickup or Trooper. Engineered with an aluminum body and a built-in reservoir, this master cylinder ensures consistent brake fluid delivery and reliable stopping power.

• Master cylinder bore diameter: 0.875 inches for precise hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes an integrated reservoir for brake fluid
• Two outlet ports with rearward outlet size M10 x 1.0 and 10mm secondary outlet thread diameter
• Thread pitch of 1.0 for secure fitting
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M39453 brake master cylinder features a 0.875-inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system of your Isuzu Pickup or Trooper. Its aluminum construction offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The included reservoir simplifies installation and maintenance by providing a ready-to-use brake fluid container. This master cylinder has two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet with a 10mm thread diameter, both with a 1.0 thread pitch to ensure compatibility with your vehicle's brake lines.

Compatible Vehicles and Applications

• Isuzu Pickup models requiring a 0.875-inch bore master cylinder
• Isuzu Trooper models with matching brake hydraulic specifications
• Replacement for worn or leaking brake master cylinders causing brake fluid loss
• Restores proper brake pedal feel and hydraulic pressure
• Addresses issues such as spongy brakes, brake fluid leaks, or inconsistent braking performance

Installation Notes and Tips

When installing the Dorman M39453 brake master cylinder, ensure the brake system is properly bled to remove any air pockets. Verify that the thread pitch and outlet sizes match your vehicle’s brake lines to avoid leaks. Since mounting hardware is not included, retain or source the appropriate hardware for secure installation. Always follow manufacturer torque specifications and safety procedures during installation.

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number M39453 are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.