New, universal air conditioner, rotary 3-speed blower switch, with plastic "fan" knob, 5 shovel terminals and 1 / 4 inch (about 0.6 cm) knob shaft. The length of the threaded shaft is about 3 / 8 inch (about 1.9 cm) (the body is about 2.54 cm x 2.54 cm square, and the diameter of the threaded shaft is 2.22 cm) "H", "m" and "L" terminals are applicable to the fan speed wire... The "B" terminal is the "power" terminal, and the "C" terminal is used for clutch, thermostat, ternary or binary switch, depending on the application range. There is no ground terminal on the switch. Motors and / or switches are usually internally or externally grounded. There are off / low / medium / high positions, 12 volts, 25 amps. Rating * Note * this will not allow your 1-speed motor to reach 3 speeds!! Suitable for cars with 3 speeds! Replacement: Siji 35702 Mei 1151 red dot 71r1150 / rd3646 Freightliner inm2g754a Kenworth 71r1150 Mack 4428-2t754a Delco 15-50180 ever. Co h755 santech mt1355 general SW 1000C