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The MIDLAND INDUSTRIES 12343 is a brass hydraulic union designed to connect two 10 mm female inverted flare brake lines in European and imported vehicle braking systems. The fitting provides a straight inline union with matching connection sizes on both ends, making it the correct choice when splicing or repairing metric brake tubing. It is rated to 1900 psi working pressure and handles a temperature range of -65 to 250 degrees F. The hex body measures 0.56 inches across, and the overall length is 1.04 inches. Brass construction offers corrosion resistance and reliable sealing under hydraulic braking pressure. This fitting is typically installed by automotive technicians and fleet maintenance professionals working on metric brake systems.
This union is intended for use on imported and European vehicles that use 10 mm inverted flare brake line connections. It serves as a repair or splice fitting when a section of brake line must be replaced and the original line cannot be run as a single continuous length. The fitting is categorized as a hydraulic union for imported vehicles and falls within the inverted flare brass fittings family. It is suitable for residential fleet service, independent repair shops, and mobile brake line fabrication work.
Designed as an OEM-style replacement union for European and imported vehicles equipped with 10 mm female inverted flare metric brake line fittings.
Brake line work should be performed by a qualified automotive technician. Depressurize and fully bleed the brake system before disconnecting any hydraulic line. Use a proper flare nut or line wrench to avoid rounding the hex. After installation, the system must be bled completely and inspected 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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