I.H.C.: Knob, temperature control. Works on blower switch. Thermostatic switch, heater control and wiper switch. 86 and 88 Series Tractors. D shaft - flat at 12 o'clock point at 6 o'clock. Tractors: 186 Hydro, 786, 886, 986, 1086, 1486, 1586, 3088, 3288, 3388, 3488, 3588, 3688, 3788, 5088, 5288, 5488, 6388, 6588, 6788, 7288, 7488. CASE: Knob, temperature control. Works on blower switch. Thermostatic switch, heater control and wiper switch. 86 and 88 Series Tractors. D shaft - flat at 12 o'clock point at 6 o'clock. Combines: 1644, 1666, 1688, 1800, 1822, 1844, 2022, 2044, 2055. Interchange 1-1296,220-90010,934100, Net Weight (lbs) 0.03 Brand TISCO Make Type Model Case IH Combine 1644 Case IH Combine 1666 Case IH Combine 1688 Case IH Combine 1800 Case IH Combine 1822 Case IH Combine 1844 Case IH Combine 2022 Case IH Combine 2044 Case IH Combine 2055 International Harvester Tractor 1086 International Harvester Tractor 1486 International Harvester Tractor 1586 International Harvester Tractor 3088 International Harvester Tractor 3288 International Harvester Tractor 3388 International Harvester Tractor 3488 International Harvester Tractor 3588 International Harvester Tractor 3688 International Harvester Tractor 3788 International Harvester Tractor 5088 International Harvester Tractor 5288 International Harvester Tractor 5488 International Harvester Tractor 6388 International Harvester Tractor 6588 International Harvester Tractor 6788 International Harvester Tractor 7288 International Harvester Tractor 7488 International Harvester Tractor 786 International Harvester Tractor 886 International Harvester Tractor 986 International Harvester Tractor Hydro 186