The Müller STA160 is a four-wheel drive (4WD) tractor built in Brazil by Müller, a part of Proton Primus. Produced from 2005 onwards, it features a Cummins 6BT5.9 turbocharged 6-cylinder diesel engine delivering 152 hp (113.3 kW). The tractor has a 12-speed transmission with a ceramic disc clutch and a six-speed gearbox with a two-speed transfer case. It offers articulated power steering, hydraulic disc brakes, and a cab with air-conditioning as standard. The STA160 has a wheelbase of 112.6 inches (286 cm), weighs 15650 lbs (7098 kg) with a ballasted weight of 18740 lbs (8500 kg), and runs on various agricultural tire sizes. Fuel capacity is 103 gallons (389.9 L) and hydraulic system capacity is 11.9 gallons (45.0 L). Electrical system includes a 90 amp alternator and two 12-volt batteries.