The Challenger MT525D is a row-crop tractor produced from 2013 to 2014 as part of the MT500D Series. Manufactured by Challenger, a part of AGCO, it was built in Beauvais, France. It features a 140 hp AGCO Power 6.6L 6-cylinder turbocharged intercooled diesel engine with selective catalytic reduction (SCR) emission control meeting Interim Tier IV standards. The tractor offers multiple transmission options including 16-speed and 24-speed power shifts and a continuously variable transmission (CVT). It has four-wheel drive, hydrostatic power steering, hydraulic wet disc brakes, and a cab with air-conditioning. The hydraulic system is a closed center load sensing type with up to 4 valves and 29 gpm flow. The tractor hitch is category 2 with electronic lower link draft control. PTO options include independent rear PTO with multiple speed types. Tires are sized 380/85R28 front and 460/85R38 rear. Electrical system includes dual batteries and alternator charging up to 240 amps with options. Original prices ranged from $130,112 to $159,794 depending on configuration.