4999682 Tractor Radiator Pressure Cap 13 PSI for Fiat Hesston 600 45-66 55-66One New Aftermarket Replacement Radiator Cap Fits Fiat Tractor Models: 450, 466, 480, 500, 540, 550, 566, 580, 600, 640, 666, 680, 766, 780, 880, 880 5, 900, 980, 1000, 1000S, 45 66, 50 66, 55 66, 55 66F, 55 76F, 55 90, 60 66, 60 66F, 60 76F, 60 90, 60 93, 60 94, 65 66, 65 90, 65 93, 65 94, 70 66, 70 66F, 70 76F, 70 90, 72 93, 72 94, 80 66, 80 66F, 80 76F, 80 90, 82 93, 82 94, 85 90, 88 93, 88 94, 90 90, 100 90, 110 90, F100, F110, F115, F120, F130,