The Acremaster 404 is a four-wheel drive (4WD) tractor produced from 1980 to 1984 as part of the 400 Series. Built in Merredin, Australia, it features a powerful Mercedes-Benz 20.9L 12-cylinder diesel engine delivering 390 hp (290.8 kW). The tractor offers two transmission options: a 9-speed gear transmission with 9 forward and 3 reverse gears, and a 12-speed power shift transmission with 12 forward and 2 reverse gears. It includes articulated power steering and a standard cab with air-conditioning. The tractor measures 261.8 inches in length, 177.2 inches in width, and 141.7 inches in height (exhaust), weighing 33,069 lbs (15,000 kg). It rides on 24.5x32 tires front and rear.