The experience gained fighting the Soviet T-34 tanks showed that angled armor offered advantages with regard to protection. The superstructure design and armor were deemed insufficient and warranted some changes to improve the overall performance. Installing the longer 7.5 cm guns on the Panzer IV greatly improved its anti-tank capabilities. Thanks to its larger production, firepower, and improved armor, the Panzer IV Ausf.H would become the backbone of the Panzer divisions from 1943 until the end of the war. It was in essence the same vehicle as the Ausf.G with some minor modifications to facilitate easier production. This would lead to the introduction of the Ausf.H version. Given its excellent performance, more better-armed Panzer IVs were requested.

The 7.5 cm L/43 guns were more than capable of dealing with most tanks on the battlefield in 1942. The introduction of the longer 7.5 cm gun-armed Panzer IV Ausf.G changed the role of the Panzer IV tank-type significantly within the German Wehrmacht.

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