The Massey Ferguson 9S.400 is a row-crop tractor in the 9S Series produced from 2024 onward. Built in Beauvais, France, it features a powerful AGCO Power 8.4L 6-cylinder liquid-cooled diesel engine delivering 400 hp (maximum 420 hp) with Stage V emissions compliance. It uses a Dyna-VT continuously variable transmission with infinite forward and reverse gears. The tractor includes four-wheel drive, power steering, and a standard cab with air-conditioning. Hydraulics are closed center load sensing with up to 6 rear valves optional and pump flow up to 105.7 gpm. The rear hitch is category IV/III with a lift capacity of 26455 lbs. PTO options include independent front and rear PTOs with multiple speed settings. Dimensions include a 122.1 inch wheelbase, 220.5 inch length, and 134.3 inch height. Standard tires are 650/60R30 front and 710/75R42 rear, with several optional tire sizes available. Electrical system is 12 volts with negative ground and alternator charging.