One New Aftermarket 600 Watt Engine Block Heater Replacement, Freeze Protection Plug Fits: Fits Case – IH Tractor Models: 1066, 1086, 1466, 966 Fits Massey Ferguson Industrial / Construction Models: 203, 205, 2135, 2200, 40, 50 Fits Massey Ferguson Tractor Models: 135, 150, 230, 231, 235, 240, 245, 250, 253, 254-4, 282, 283, 298, 35, 360, 364S, 399, 698 Technical Info: Diameter: 1-1/4 in. Volts: 120 Watts: 600 Length: 6 ft. Replaces Part(s):5B600