radiators

hi everybody, anybody know what is the sensor for radiator? today just dont star. fuse good and the fan worck whit direct voltage

I´m losing water through my radiator and since it´s an aluminum piece I´m inclined to buy a new part instead of trying to "refurb" mine. I found this replacement radiator on eBay for about US$ 100. My concern is the brand which I had never heard before: NISSENS.:confused: Does anyone here has...