Check the listing for details. ROTARY AIR CONDITIONING SWITCH 3 SPEED BLOWER TYPE W/HARNESS & PLUG MADE IN USA. Condition: New. Listed at 35.95 USD. NEW AIR CONDITIONING Rotary 3 Speed Blower Switch With Heavy Duty Harness and Plug..Has 5 Spade Terminals And A 1/4" 'D' Shaft For The Knob.Threaded Shaft Length Approx. 3/8" 'INDAK' BRAND, MADE IN USA!! Indak is Leading USA Supplier For MANY OEMs, General Motors,Ford,Chrysler and Others Switches!! (Body is Approx. 1" X 1" Square, Threaded Shaft Diameter Is 7/16") (Plug Has 14" Multi Colored Wire 'Pigtail' For Ease Of Installation) (Knob is 'Generic' Plain Face) 4 Position, Has Off/ Low/Med/High Positions,12 Volt, 25 Amp. Rating The 'H' , 'M' and 'L' terminals are for fan speed leads..The 'B' terminal is the power 'in' terminal, while the 'C' terminal is for the clutch,thermostat, trinary or binary switch depending on application. There is NOT a ground terminal on the switch. The motor and /or switches are normally internally or externally grounded. *NOTE* THIS DOES NOT MAKE YOUR 1 SPEED MOTOR A 3 SPEED !! THIS IS FOR MOTORS THAT ARE ALREADY 3 SPEED!!! THESE ARE FOUND ON MANY UNDER THE DASH A/C UNITS . Replaces : Four Seasons 35702 MEI 1151 Honda 00091-31511 Red Dot 71R1150 / RD3646 Freightliner INM2G754A Kenworth 71R1150 Mack 4428-2T754A Delco 15-50180 Everco H755 Santech MT1355