World's Biggest Tractor

World's Biggest Tractor TRACTORS Miscellaneous 31-6-5 Senior Editor Bill Gergen recently got a close-up look at Agco's new 570 hp Challenger, which is being billed as the world's biggest production tractor. Available in either a wheeled or tracked version, the monster pulling machine weighs 63,000 lbs., with the widest and heaviest frame in the industry, and the largest articulation and biggest bar axle. The wheeled version sells for an impressive $319,242.

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