John Deere 4020


John Deere 4020 tractor photo
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
ManufacturerJohn Deere
Row-Crop tractor
FactoriesWaterloo, Iowa, USA
 Mexico
Total built184,879 (total)
 8,123 (gas)
 8,445 (LP)
 168,311 (diesel)
 17,732 (standard)
Original price was $10,345 in 1972
Variants
4020row-crop
4020Sstandard
4020HChigh-crop
600industrial
John Deere 4020 Engines
John Deere 6.6L 6-cyl diesel
John Deere 5.6L 6-cyl gasoline
John Deere 5.9L 6-cyl gasoline
John Deere 5.9L 6-cyl LP gas
Engine details ...
John Deere 4020 Transmissions
8-speed partially synchronized
8-speed full power shift
Transmission details ...
John Deere 4020 Power
Drawbar (tested)83.79 hp
62.5 kW
PTO (tested)95.83 hp
71.5 kW
Performance test details ...
Mechanical
Drive4x2 2WD
 4x4 HFWD 4WD *Front-wheel assist was optional after 1969.
Differential lockmechanical rear OptOptional
Power steering
Hydraulic wet disc brakes
Open operator station. Cab optional.
Capacity
Gasoline Fuel34 gal
128.7 L
Diesel Fuel34 gal
128.7 L
LP-gas Fuel45 gal
170.3 L
Syncro-Range Hydraulic system10 gal
37.9 L
Power Shift Hydraulic system12 gal
45.4 L
Hydraulics
Typeclosed center
Syncro-Range Capacity10 gal
37.9 L
Power Shift Capacity12 gal
45.4 L
Pressure2250 psi
155.1 bar
Valves1
SCV flow6 gpm
22.7 lpm
Total flow18 gpm (early)
68.1 lpm
Tractor hitch
Rear TypeII
Rear lift3790 lbs
1719 kg
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540/1000 (1.375)
 1000 (1.375)
Engine RPM540@1900
 1000@1900
Front PTOindependent
Front PTO Type1000
Engine RPM1000@1900
Dimensions & Tires
Row crop Wheelbase97.5 inches
247 cm
Standard Wheelbase100.25 inches
254 cm
Weight8225 to 9560 pounds
Front tire6.00-16
Rear tire15.5-38
Full dimensions and tires ...
4020 Serial Number Location
John Deere 4020 serial number location
Serial number plate on the rear of the 4020 transmission case.
4020 Serial Numbers
196465000
196591000
1966119000
1967145660
1968173982
1969201000
1970222160
1971250000
1972260791
Final270288

FAQ: How to read a serial number table.
Electrical
Groundpositive (1964-1969)
 negative (1969-1972)
 floating (24V)
Charging systemMotorola alternator
Charging amps55
Batteries2 (24V system)
 1 (12V system)
Battery volts12
Battery AH75
References
4020 references literature
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.
4020 manuals literature
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
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Updated on October 28, 2023
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