John Deere 4020
1963 - 1972 New Generation Series Row-Crop tractor
Series map:
4000
4020
4320
107.7hp*
101.3hp*
127.8hp*
*Estimated engine power for comparison only.
Production Manufacturer John Deere
Row-Crop tractor Factories Waterloo, Iowa, USA
Mexico
Total built 184,879 (total)
8,123 (gas)
8,445 (LP)
168,311 (diesel)
17,732 (standard)
Original price was $10,345 in 1972
Mechanical Drive 4x2 2WD
4x4 HFWD 4WD * Front-wheel assist was optional after 1969. Differential lock mechanical rear Opt Optional Power steering Hydraulic wet disc brakes Open operator station. Cab optional.
Capacity Gasoline Fuel 34 gal128.7 L
Diesel Fuel 34 gal128.7 L
LP-gas Fuel 45 gal170.3 L
Syncro-Range Hydraulic system 10 gal37.9 L
Power Shift Hydraulic system 12 gal45.4 L
Hydraulics Type closed center
Syncro-Range Capacity 10 gal37.9 L
Power Shift Capacity 12 gal45.4 L
Pressure 2250 psi155.1 bar
Valves 1
SCV flow 6 gpm22.7 lpm
Total flow 18 gpm (early)68.1 lpm
Tractor hitch Rear Type II
Rear lift 3790 lbs1719 kg
Power Take-off (PTO) Rear PTO independent
Rear PTO Type 540/1000 (1.375)
1000 (1.375)
Engine RPM 540@1900
1000@1900
Front PTO independent
Front PTO Type 1000
Engine RPM 1000@1900
4020 Serial Number Location Serial number plate on the rear of the 4020 transmission case.
Electrical Ground positive (1964-1969)
negative (1969-1972)
floating (24V)
Charging system Motorola alternator
Charging amps 55
Batteries 2 (24V system)
1 (12V system)
Battery volts 12
Battery AH 75
References The John Deere 20 Series New Generation Tractors by Benjamin Hain Designing the New Generation John Deere Tractors by Merle Miller 2510, 3020, 4020 Row-crop Tractors published in 1965, by John Deere Tractors 1918-1976 published by John Deere* John Deere Tractors for 68 published in 1968 Standard and 4-Wheel-Drive Tractors: 70 to 280 HP published in 1970, by John Deere Modern Farming published in 1965, by John Deere *Publication contains known errors. Operator's Manual 4000 and 4020 (OM-R46934) published in 1969 Operator's Manual 4000 and 4020 (OM-R48273) published in 1971 Operator's Manual 4020 (OM-R34410) published in 1963 Operator's Manual 4020 (OM-R39669) published in 1965 Operator's Manual 4020 (OM-R41754) published in 1969 Operator's Manual 4020 (OM-R44920) published in 1969
Page information Copyright 2025 TractorData.com® Email me: Peter@TractorData.com TractorData is a family-owned small business located in Minnesota. I have been researching tractor history and providing specifications for free since 1999. Peter Easterlund - owner/authorThis machine's data modified on June 18, 2025
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