Hello I have a 02 Arctic Cat 400 4x4, I was wondering if anyone knew the radiator hose size. I am asking because I would like to add a coolant temperature sensor ( ).

 

On my 14 if i remember correctly i went with a 24mm. you could always pull the upper hose and take measurements.. They make some nice kits that have the sensor already in a hose barb connection and all you do is cut the hose and pop in.. Thats what i used 4 years ago with no issues.