Trinary Kit

The VINTAGE AIR Trinary Kit (MPN 110071) is a precision engine-mounted switch assembly designed for modern air conditioning systems in classic and custom vehicles. This compact component serves as a critical interface between your engine's mechanical operation and climate control demand, functioning as a pressure-sensitive valve that automatically engages and disengages the AC compressor based on refrigerant pressure readings.

Engineered with integrated functions for low-pressure cutoff, high-pressure relief, and compressor cycling, this kit monitors system pressure to prevent compressor damage. Weighing only 1 pound with compact dimensions (2 x 2 x 9 inches), the Trinary Kit mounts directly to the engine block or compressor housing, simplifying installation and reducing parasitic drag on your engine.

This kit is ideal for restoring muscle cars or upgrading older vehicles with modern HVAC efficiency, ensuring reliable climate management year-round. Its design is compatible with both R134a and R12 refrigerants, making it versatile for various applications in custom and classic vehicle AC systems.