2008 - 2010 F250 F350. Ford Super Duty 6.4 Diesel Radiator Cooling Fan. Engine Cooling Fan Clutch Blade. Removed from a 2010 Ford Super Duty 6.4L. 6.4L; Lariat, XL & XLT; (8-391). 6.4L; FX4, Harley-Davidson Edition, King Ranch, Lariat, XL & XLT; (8-391).