This replacement radiator fan thermal switch is designed for select Polaris Scrambler models and installs directly into the factory radiator port to control cooling fan operation. The switch is manufactured to OEM dimensional specifications and features the same approximate 185-degree activation temperature as the original equipment switch. Located at the top center of the radiator, it is intended for replacement of a faulty or non-functioning thermal switch and installs directly with no modifications required when used on the listed applications. Fits the following Polaris Scrambler models and more: 1997-01 Scrambler 500. Fitment Fits the following models: 1997?2001 Scrambler 500 Replacement Part Number(s) Polaris 4010202 Polaris 4110225