Controls and Instruments Heater and Air-Conditioning Controls (Tractors with ClimaTrak System) A—Fan switch with automatic mode B—Heater and air-conditioning regulator C—Airflow regulator with automatic function D—Air-conditioning switch LX1036199 —UN—16AUG05 OU12401,0001658 -19-05MAR07-1/1 15-5 030612 PN=36