Dorman M105876 Brake Master Cylinder

Reliable Brake Master Cylinder for Jeep Cherokee and Wrangler

The Dorman M105876 brake master cylinder is designed to restore proper brake hydraulics in select Jeep models. Engineered with a cast iron body and a 0.938-inch bore diameter, this master cylinder ensures consistent brake fluid pressure for safe stopping performance.

• Compatible with Jeep Cherokee, Comanche, Wagoneer, and Wrangler models
• Cast iron construction for durability and strength
• Includes reservoir for brake fluid storage
• Two outlet ports with secondary outlet thread diameter of 0.5 inches
• Rearward outlet size of 7/16-24 for precise fitment
• Part number M105876 for accurate identification
• Mounting hardware not included

Product Details and Specifications

This Dorman brake master cylinder features a 0.938-inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system. The cast iron material provides a robust and corrosion-resistant housing, suitable for the demanding conditions faced by Jeep Cherokee, Comanche, Wagoneer, and Wrangler vehicles. The included reservoir allows for proper brake fluid containment and circulation. With two outlets, including a secondary outlet with a 0.5-inch thread diameter and a rearward outlet sized at 7/16-24, this master cylinder is designed to integrate seamlessly with the brake lines of compatible Jeep models. Note that mounting hardware is not included, so ensure existing hardware is in good condition or sourced separately.

Common Applications and Problem Resolution

• Restores brake fluid pressure in Jeep Cherokee and Wrangler brake systems
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Addresses brake fluid leaks from damaged or corroded master cylinders
• Improves brake response and pedal feel in Jeep Comanche and Wagoneer vehicles
• Resolves issues related to brake system failure due to master cylinder malfunction

Installation Notes and Tips

When installing the Dorman M105876 brake master cylinder, verify compatibility with your specific Jeep model and year. Since mounting hardware is not included, inspect existing bolts and fittings for wear or damage before installation. Properly bleed the brake system after installation to remove air and ensure optimal brake performance. Use recommended brake fluid types and follow manufacturer torque specifications for outlet fittings to prevent leaks.

Quality Assurance and Warranty Information

Dorman brake master cylinders are manufactured to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to long service life and reliable operation. This product is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use conditions.