1983 Peterbilt 362 Engine: 14.6L L6 DIESEL; Optional Belt; With 57 1/2 In. Belt Outside Circumference; Position: Fan;. 1984 Peterbilt 362 Engine: 14.6L L6 DIESEL; Optional Belt; With 57 1/2 In. 1985 Peterbilt 362 Engine: 14.6L L6 DIESEL; Optional Belt; With 57 1/2 In.