The Challenger MT765B is an agricultural crawler tractor produced from 2005 to 2008 as part of the MT700B Series. Manufactured by Challenger, a part of AGCO, it was built in Jackson, Minnesota, USA. It features a Caterpillar 8.8L 6-cylinder turbocharged aftercooled diesel engine delivering 320 hp gross power. The tractor uses a Cat PowerShift 16-speed full power shift transmission with hydraulic wet disc clutch. It has a crawler drive with hydraulic wet disc brakes and a standard cab with air-conditioning. The MT765B offers a closed-center PFC hydraulic system with 2900 psi pressure and 4 to 6 rear valves. The rear hitch is type III/IIIN with a 16000 lbs lift capacity and an independent 1000 rpm rear PTO. Dimensions include a 96-inch wheelbase, 233-inch length, 133-inch width, and 135.5-inch cab height, with a shipping weight of 31075 lbs. Track widths range from 16 to 30 inches. Electrical system features a negative ground, 185 amp alternator, two 12-volt batteries with 1000 CCA each. Related models include the MT765C, MT755B, and MT765.