TN 1055106 12V 6PSI Oil Pressure Switch for Tennant. Fits many popular models including, but not limited to, Tennant 550D 1550D, 6500, 6500D, 6650, 6650D, 6600, 6600D, 6650, 6650D, 7400, 355, 355D, 385, 385D, 800, 800D, 810, 810D, 8200, 8200D, 8210,...