The Massey Ferguson 6S.155 is a row-crop tractor produced since 2022 as part of the 6S Series by Massey Ferguson, a part of AGCO. It features a 4.9L AGCO Power 4-cylinder turbocharged intercooled diesel engine delivering 152.9 hp rated power and up to 173 hp maximum power. The tractor offers transmission options including a 24-speed six-speed power shift (Dyna-6) and a continuously-variable transmission (Dyna-VT). It has four-wheel drive, power steering, hydraulic wet disc brakes, and a cab with air-conditioning. The hydraulics system supports open center and optional closed center types with up to 5 rear valves and 2 front valves. The tractor hitch includes rear and front type III hitches with various lift capacities. PTO options include independent rear and front PTOs with multiple speed settings. Dimensions include a 105.1 inch wheelbase, 185.6 inch length, and 118.9 inch cab height. Standard tires are 420/85R28 front and 520/85R38 rear. The tractor weighs between 13,889 and 16,535 pounds depending on configuration.