Parts list: № Number Qty Name Options 1 37M7181 12 Screw 2 [] 1 (USE T121733 IF AVAILABLE) 3 T121703 2 Bushing 4 T77932 2 O-Ring 5 [] 1 (SUB FOR T121704)(USE T121733 IF AVAILABLE) 6 [] 1 (SUB AT125653) 7 AT132776 1 Thermostatic Control Valve (SUB FOR AT125653) 8 R78035 1 Push Nut 9 T121705 1 Lever Next page: ST316893 Cab Heater Hoses And Controls (40,000 BTU) (548824 - ) ST316894 Cab Heater, Hoses And Controls (Under Seat) (20,000 BTU) (548824 - ) ST316896 Heater Hoses (Units w/ Air Conditioning) (19,000 AND 20,000 BTU) ST316898 Compressor Mounting Brackets (R12 Refrigerant) ( - 543489) ST316901 COMPRESSOR ( - 543489) ST316889 CAB HEATER HOSES AND CONTROLS ( - 520371) ST316884 Cab Heater With Pressurizer (40,000 BTU) (548824 - ) ST316879 Cab Heater (19,000 BTU) ( - 513954)