Introduced in the fall of 2010, the American New Holland T8 was still a sister model to the Case IH Magnum and combined American and European tractor engineering philosophies. The wheelbase, extended to 3.45 meters, was longer than that of its competitors, and the front axle was now positioned far forward. The SuperSteer front axle was no longer available, but the 10-meter turning radius was small for its size category. The engine had been replaced with the group's own 8.7-liter Cursor, which used SCR technology. The urea tank was a substantial 89 liters. The powershift transmission, named Ultra Command, represented the American view of a large tractor transmission. The gear options were 18+4 or, in the 40 km/h Eco and 50 km/h versions, 19+4. With creep gears, the options were 23+6. Gears were controlled by electric buttons or automatic shifting. The direction change was hydraulic. Hydraulic output was 161 liters per minute, and with the optional MegaFlow pump, 274 liters per minute. Standard equipment included 5 electronically controlled hydraulic valves.

Inside the cab, all displays were gathered on a cab pillar. Most of the controls were on the SideWinder armrest. The cab noise level of 69 decibels was significantly lower than that of its predecessor. Standard features included the IntelliView III monitor, headland automation, automatic climate control, and electrically adjustable mirrors. The Finnish specifications also included cab suspension and an active suspension seat.

In the fall of 2013, the T8 series also received the stepless Auto Command transmission derived from the T7. This allowed achieving 40 km/h at 1400 RPM. At the same time, a new top model, the T8.420, was introduced to the lineup, enabling it to keep up in the power contest. The T8.420 had a more robust rear axle than the other models and could be equipped with tires as large as 900/60R42.

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