1988 International 8300 Engine: 10L L6 DIESEL; With 57 5/8 In. Belt Outside Circumference; Position: Fan;. 1989 International 8300 Engine: 10L L6 DIESEL; With 57 5/8 In. 1990 International 8300 Engine: 10L L6 DIESEL; With Bendix Westinghouse Fan Clutch; Position: Fan;.