The CaseIH STX375QT Quadtrac is an articulated crawler tractor produced from 2002 to 2005 as part of the Steiger STX Series. It features a powerful Cummins QSX15 15.0L 6-cylinder turbocharged aftercooled diesel engine delivering 375 hp (279.6 kW) with a 16-speed full power shift transmission. Designed for heavy-duty farming tasks, it includes hydrostatic power steering, integrated hydraulic wet disc brakes, and a Surveyor Cab as standard. The tractor offers advanced hydraulics with pressure flow compensated system and optional pump flow rates. It runs on 30 or 36 inch wide tracks and has a maximum operating weight capacity of 53264 lbs (24160 kg). The STX375QT is built in Fargo, North Dakota, USA, and is part of a series including the STX380QT and STX425QT models.