Are you having trouble with the HOT light coming on? This sensor, mounted on the engine cylinder, controls the on/off operation of the hot light. If yours is damaged or bad this can cause false hot lights. If you cannot figure out why your hot light keeps coming on, replace this switch, it may be the problem. On/Off settings are exactly the same as stock. Simply screw it into the cylinder, plug it in and you are ready to go. Fits all 1996-2012 Sportsman 400's and 500's except EFI models and 2004-08 Sportsman 500. Replaces Polaris part # 3085352.