Part # Description Volts 1-1/2 Ton 2 Ton 3 Ton 4 Ton 5 Ton 8 Ton 10 Ton 1C21138P1 CRANKCASE HEATER BAND 240V 30W 240V 30W   1 1 1 1     1C21138P2 CRANKCASE HEATER BAND 240V 22W 240V 22W 1 1   1 1