At the end of 2003, McCormick moved to new power ratings with the introduction of the ZTX model range. The 8.3-liter Cummins engines had maximum power according to model designations ranging from 230 to 280 hp. The engines were 24-valve and electronically controlled, but there were no additional power features. However, the nominal power and torque were available over a wide RPM range. The transmission was Funk’s 18-speed full powershift, whose behavior the user could program primarily for the starting gear. There was automation for engaging the four-wheel drive and 100% differential locks on the turn. Hydraulic performance was similar to the series just below it. Five hydraulic valves were standard.

The exterior design was developed by the Italian company Zagato. The gridded nose later appeared on other McCormick models as well. The cabin had six pillars but otherwise was similar in design to the smaller model series’ later introduced four-pillar cabins. Air conditioning was automatic. Front axle and cabin suspension were available as optional extras.

In 2006, the same tractor was introduced in Landini’s lineup under the name Powerful. However, production of both ended already in 2007 when the factory in England was closed and Funk stopped making suitable transmissions. The production volume likely remained a few hundred units.

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