Dorman M118403 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M118403

The Dorman Brake Master Cylinder M118403 is designed specifically for Toyota Pickup models, providing reliable brake hydraulics performance. This cast iron master cylinder includes a reservoir and features a 0.875-inch bore diameter to ensure consistent braking pressure.

• Compatible with Toyota Pickup 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
• Thread pitch of 1.0 for secure fittings
• Mounting hardware not included
• Part number M118403 for precise identification

Detailed Product Description

The Dorman M118403 brake master cylinder is engineered to meet the hydraulic braking needs of Toyota Pickup trucks. Its cast iron construction offers strength and durability under demanding conditions. The 0.875-inch bore diameter is designed to provide the correct hydraulic pressure for effective brake operation. This master cylinder comes with an integrated reservoir, simplifying installation and maintenance. Featuring two outlets, including a rearward outlet with an M10 x 1.0 thread diameter and a 1.0 thread pitch, it ensures compatibility with the vehicle's brake lines. Note that mounting hardware is not included, so existing hardware or separate purchase may be necessary.

Common Applications and Problem Resolution

• Restores proper brake fluid pressure in Toyota Pickup brake systems
• Replaces worn or leaking master cylinders causing brake failure
• Addresses spongy or unresponsive brake pedal issues
• Fixes brake fluid leaks from the master cylinder reservoir or outlets
• Improves overall brake system reliability and safety

Installation Notes and Tips

• Ensure compatibility with Toyota Pickup model year before installation
• Bleed brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Inspect brake lines and fittings for wear or damage during replacement
• Mounting hardware is not included; retain or acquire necessary components

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM specifications for fit and function. The M118403 part undergoes rigorous quality control to ensure durability and performance in Toyota Pickup brake systems. Warranty coverage details should be confirmed with the product documentation or supplier.