Most powerful agricultural tractor in series production

Although more powerful tractors have been produced to order, the most powerful tractors in series production are the John Deere 9620T and the Caterpillar Challenger MT865, both of which have a claimed power output of 373 kW (500 hp). The 9620T has four-wheel drive, with four sets of double wheels, and weighs 17.69 tonnes (39,000 lb) without ballast. The MT865 is powered by a 14.6 litre (891 cu in) engine and runs on tracks.