StuG III Ausf. F/8: (Sd.Kfz 142/1; September–December 1942, 250 produced) Introduction of an improved hull design similar to that used for the Panzer III Ausf. J / L with increased rear armor. This was 8th version of Panzer III hulls, thus the designation "F/8." This hull has towing hook holes extending from side walls. From October 1942, 30mm additional armors were bolted on to speed up the production line. From F/8, 7.5 cm StuK 40 L/48 gun becomes standard until the very last of the Ausf. G. Due to lack of double baffle muzzle brakes, few L48 guns mounted on F/8 were fitted with single baffle ball type muzzle brake found in Panzer IV Ausf. F2.

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