The Zerostart Lower Radiator Hose Heater 3200004 is designed for Allis Chalmers models XP-170 and XP190, Ford models 2000, 3000, 4000, 5000 and 6000 (3, 4, 6 cyl.), International/Navistar model Cub Lo-Boy and Johne Deere models 1020, 2020, 3010, 3020, 4000, 4010 and 4020. This model installs in minutes in non-corrugated lower radiator hose and is available in five hose sizes for best coverage.