Machine description: 1965 John Deere 4020 2WD Tractor. 7.879 Hrs Showing. 101 Hp. John Deere 5.6L 6-cylinder. Gasoline Engine. Full Powershift Transmission. 8 Speeds Forward. Narrow Front. Tires-6.00-16. Rear Tires-18.4-3... more info about the 1965 John Deere 4020.