The 7400 series also received a new design and engines at the same time as the 6400 series. Models equipped with SisuDiesels were introduced at the end of 2006, and Perkins engines in early 2007. The 7400 series no longer had the extra power feature. Instead, the engine power was about 5 hp higher than the corresponding models in the 6400 series, and the torque was as much as in the 6400 series with the extra power feature. The front frame was also new in the 7400 series, as were the front axles in the models equipped with SisuDiesels. Noise levels dropped to 70 dB with Perkins engines and 68 dB with SisuDiesels.

In the autumn of 2009, the largest models in the 7400 series, the 7497 and 7499, were introduced, featuring 7.4-liter Sisu engines.

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