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The MIDLAND INDUSTRIES 12207 is a brass dual master cylinder adapter designed to connect brake lines at the master cylinder using inverted flare fittings. It accepts a 3/16-inch female inverted flared connection on one end and a 3/16-inch male inverted flared connection on the other, with a 9/16-20 thread specification. The all-brass construction provides corrosion resistance and reliable sealing under hydraulic brake system pressures. This adapter is installed by automotive and fleet service technicians working on brake line repairs or master cylinder replacements where a dual-port connection is required.
This fitting is suited for hydraulic brake line applications where a master cylinder port must be adapted or extended using standard 3/16-inch inverted flare tubing. It is commonly used in automotive and light-duty vehicle brake system service, including repairs involving dual-circuit master cylinders. The compact dimensions make it appropriate for tight underhood or firewall installations typical of passenger vehicles and light trucks.
Designed as an OEM-style replacement adapter for master cylinder brake line connections using 3/16-inch inverted flare fittings with 9/16-20 thread.
This fitting is typically installed by a qualified automotive or brake system technician. Always depressurize and bleed the brake system before disconnecting any hydraulic lines. Hand-tighten inverted flare fittings before applying final torque to avoid cross-threading. After installation, bleed the brake system fully and inspect for leaks before returning the vehicle to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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