670C - GRADER, MOTOR 1830 HEATING AND AIR CONDITIONING Parts group 1830 HEATING AND AIR CONDITIONING 1830 HEATING AND AIR CONDITIONING . Cab Heater (20,000 BTU) Cab Heater With Pressurizer (40,000 BTU) CAB ROOF Cab Heater Hoses And Controls (40,000 BTU) Cab Heater, Hoses And Controls (Under Seat) (20,000 BTU) ( - 567031) Cab Heater, Hoses And Controls (Under Seat) (20,000 BTU) (567032 - ) COMPRESSOR AND BRACKET WITH IDLER PULLEY ( - 581991) COMPRESSOR AND BRACKET WITH IDLER PULLEY (581992 - ) Compressor, Manifold And Dust Cover (R134A Refrigerant) COMPRESSOR SHAFT SEAL KIT COMPRESSOR HARDWARE KIT EVAPORATOR SUCTION AND PRESSURE HOSES ( - 580183) EVAPORATOR SUCTION AND PRESSURE HOSES (580184 - ) AIR CONDITIONING MODULE WITH HEATER AND EVAPORATOR CORES CONDENSER, RECEIVER DRYER AND HOSES ( - 568703) CONDENSER, RECEIVER DRYER AND HOSES (568704 - 580183) CONDENSER, RECEIVER DRYER AND HOSES (580184 - ) HVAC COVER, AND FILTER HVAC DUCTS BLOWER ASSEMBLY FILTER PANEL AND FILTER Front Window Defog Ducts (Full Height Cab) (564757 - ) Front Window Defog Ducts (Low Profile Cab) (564757 - )