1987 Ford E-250 Econoline Engine: 4.9L L6; Reverse Rotation; Standard Duty Thermal Fan Clutch;. 1988 Ford E-250 Econoline Engine: 4.9L L6; Reverse Rotation; Standard Duty Thermal Fan Clutch;. 1989 Ford E-250 Econoline Engine: 4.9L L6; Reverse Rotation; Standard Duty Thermal Fan Clutch;.