Dorman M71258 Brake Master Cylinder

Reliable Brake Master Cylinder for Chrysler and Dodge Vehicles

The Dorman M71258 brake master cylinder is engineered to restore proper brake hydraulics in select Chrysler and Dodge models. Designed with durable cast iron and a built-in reservoir, this master cylinder ensures consistent brake fluid delivery for safe stopping performance.

• Master cylinder bore diameter: 1 inch
• Constructed from cast iron for durability
• Includes reservoir for brake fluid
• Two outlet ports for brake line connections
• Rearward outlet size: 1/2-20 thread
• Secondary outlet thread diameter: 9/16-18
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M71258 brake master cylinder features a 1-inch bore diameter, crafted from cast iron to withstand the demands of brake system pressure and heat. It comes with an integrated reservoir to hold brake fluid, eliminating the need for a separate component. The unit has two outlets, with the rearward outlet sized at 1/2-20 and the secondary outlet at 9/16-18 thread diameter, allowing for secure brake line connections. This part is designed specifically for Chrysler and Dodge vehicles, including models such as the 300, Challenger, Charger, Dart, Monaco, Newport, New Yorker, and Town & Country.

Compatible Vehicles and Applications

This brake master cylinder is compatible with a range of Chrysler and Dodge vehicles, making it suitable for owners needing replacement parts for their 300, Challenger, Charger, Dart, Monaco, Newport, New Yorker, or Town & Country models. The Dorman M71258 is ideal for addressing brake system issues related to hydraulic pressure and fluid delivery.

• Restores proper brake fluid pressure and flow
• Replaces worn or leaking master cylinders
• Solves brake pedal sinking or sponginess
• Addresses brake fluid reservoir leaks
• Improves overall brake system responsiveness

Installation Notes and Tips

Installation of the Dorman M71258 brake master cylinder requires removal of the old unit and proper connection of brake lines to the two outlet ports. Note that mounting hardware is not included, so retain or source necessary bolts and fittings. Bleeding the brake system after installation is essential to remove air and ensure optimal brake performance. Professional installation is recommended if you are unfamiliar with brake hydraulic systems.

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM specifications, using cast iron for strength and durability. While mounting hardware is not included, the product includes a reservoir and is designed for reliable operation in compatible Chrysler and Dodge vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor.