A BIGGER choice of five models in Kubota’s M-GX range provides a wider spread of power outputs with the introduction of automatic modes for the eight-speed powershift.

There are also upgraded lighting and ISOBUS-ready electronics infrastructure for the tractors, which now range from 104hp to 143hp as a result of shifting power outputs upwards and slotting in one extra model.

They use Kubota’s own 3.8-litre V3800 engine for the base and 111hp models, and the unusually large capacity 6.1-litre V6108 four-cylinder motor for the 123hp, 133hp and 143hp versions.

Both engines have revised power and torque curves said to result in up to 25% more torque lower down the rev range for enhanced performance.

To meet latest emissions rules, selective catalytic reduction (SCR) has been added to the existing suite of exhaust gas recirculation, oxidation catalyst and particulates filter emissions control technologies.

A new LCD instrument display and LED lighting apart, the tractors otherwise remain much as before, except in the power delivery department where Kubota engineers said key components within the transmission have been uprated.

Also, the eight powershift steps of the 24x24 speed Intelli-Shift transmission – 32x32 with creep option – can now be operated in auto as well as manual.

Auto is available for use in the field, allowing the operator to focus on steering and the implement he is working while the transmission responds to changing loads in the field.

Road mode again relieves the driver from making up and down-shift decisions and actions on undulating roads.

Introducing ISOBUS enables operators to use Kubota’s own or a thirdparty compliant terminal to set-up, monitor and operate compatible implements.

Front axle suspension is again available, but now across the range, for a smoother ride.

The M-GX IIIs retain a portal front axle, with bevel gears and Kubota’s Bi-Speed system.

This engages a gear beyond a steering angle of 35 degrees that increases the speed of the front wheels to pull the tractor through a tighter turn.

There is also an auto setting for drive to the front axle to disengage it above 20kph and re-engages below 17kph to reduce tyre wear.