Dorman M97934 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Bronco and Econoline Models

The Dorman M97934 brake master cylinder is engineered to restore proper brake hydraulics for select Ford vehicles. Designed specifically for models like the Bronco, E-100 Econoline, and F-150, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Master cylinder bore diameter: 1 inch for precise hydraulic control
• Constructed from durable cast iron for long-lasting performance
• Includes reservoir for brake fluid storage
• Two outlet ports with rearward outlet size 9/16-18 and secondary outlet thread diameter 7/16-24
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

The Dorman M97934 brake master cylinder features a robust cast iron body designed to withstand the demands of brake hydraulics in Ford trucks and vans. Its 1-inch bore diameter provides the necessary hydraulic pressure for effective braking. The included reservoir allows for proper brake fluid containment, while the two outlets accommodate the brake lines with specific thread sizes (9/16-18 rearward outlet and 7/16-24 secondary outlet). This part is compatible with Ford Bronco, E-100 Econoline, E-100 Econoline Club Wagon, E-150 Econoline, E-150 Econoline Club Wagon, F-100, F-150, and F-250 models, ensuring a precise fit and reliable operation.

Common Applications and Problem Resolution

• Restores brake fluid pressure in Ford Bronco and Econoline brake systems
• Replaces worn or leaking master cylinders causing brake pedal issues
• Addresses brake fluid reservoir leaks or contamination
• Solves inconsistent brake pedal feel or sponginess
• Fixes brake failure symptoms related to master cylinder malfunction

Installation Notes and Tips

Installation of the Dorman M97934 master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic performance. Since mounting hardware is not included, retain original fasteners or acquire compatible hardware before installation. Verify thread sizes for brake line fittings to ensure compatibility with the 9/16-18 and 7/16-24 outlet ports. It is recommended to inspect related brake components during installation for overall system integrity.

Quality Assurance and Warranty Information

Dorman manufactures the M97934 brake master cylinder to meet or exceed OEM specifications for durability and performance. The cast iron construction provides corrosion resistance and structural strength. While mounting hardware is not included, the product undergoes quality checks to ensure fitment accuracy for Ford Bronco, Econoline, and F-Series trucks. Warranty coverage details should be confirmed through official Dorman documentation or authorized distributors.