1979 International F2574 Engine: 7L L6 DIESEL; Position: Fan;. 1980 International F2574 Engine: 7L L6 DIESEL; Position: Fan;. 1981 International F2574 Engine: 7L L6 DIESEL; Position: Fan;. 1982 International F2574 Engine: 7L L6 DIESEL; Position: Fan;.