The updated New Holland T6 series was introduced to Finland at the beginning of 2017. The lineup was expanded with more powerful 4-cylinder options, while the only remaining 6-cylinder model was the T6.180. However, New Holland had concluded that customers wanted the external dimensions and turning radius of a 6-cylinder tractor for their 4-cylinder models, so the wheelbase was extended to match that of the 6-cylinder by adding an extra section between the engine and transmission. The turning radius became over one meter larger than before. The engines were familiar 4.5- and 6.7-liter units equipped with urea injection, oxidation catalyst, and an additional power feature.

The standard transmission was a 16+16 speed EC with a 4-speed Powershift. Using the eight highest or eight lowest gears was possible with electric buttons via electric range shifting. Automatic shifting within these ranges was standard in Finland. The 50 km/h version had a separate 17th gear that bypassed the main transmission. As an option, the SuperSteer front axle, which allowed for a 65-degree steering angle (not available with front suspension), and Fast Steer quick steering, which reduced steering effort, were still offered.

In Finland, standard features included load-sensing hydraulics with a 113 l/min pump, 4 hydraulic circuits, air conditioning, air suspension seat, and a trailer brake valve. The Deluxe model also included electric range shifting, engine speed automation, a disc brake lock on the front axle, electric control of the locks, and cab suspension. Optional extras included an improved headland management system and electric hydraulic valves. In many other countries, the standard equipment was more basic; for example, in the UK, the base model was named Deluxe.

For 2018, a new Dynamic Command dual-clutch transmission was introduced, offering an 8-speed Powershift.

At the beginning of 2021, the Stage V models were introduced. The T6.125 was discontinued, and a new smaller 6-cylinder T6.160 was launched. It featured the highest torque increase in the lineup—46%.

This is an automated translation. Please report any issues in the translation.