The John Deere 4640 is a heavy-duty, four-wheel-drive tractor that was first introduced in the late 1970s. It features a 6-cylinder engine, turbocharged and intercooled, that delivers a maximum of 140 horsepower at 2200 rpm. With a 24” ground clearance, this tractor is designed to tackle a wide range of farm and agricultural tasks, from tilling and cultivating to plowing and harvesting. The 4640 has a standard 9F/4R transmission, a wide selection of implements and attachments, and a spacious cab with air-conditioning and other amenities. It is widely regarded as one of the most reliable and efficient tractors of its time, and is still used in many farms and agricultural settings today.