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Years in Production / 1963–1972

John Deere

4020

Explore the specifications, hardware, and original references for the John Deere 4020.

101hp

Engine estimate · from PTO

MFWD Optional

Drive

1963–1972

Production years

John Deere

Manufacturer

4020 / 01

At a glance

Overview

1963 - 1972

New Generation Series

Row-Crop tractor

Alternative Additional Value: 303 Special

Production

Row-Crop tractor

Original price was $10,345 in 1972

Manufacturer: John Deere
Factories: Waterloo, Iowa, USA
Factories: Mexico
Total Built: 184,879 (total)
Total Built: 8,123 (gas)
Total Built: 8,445 (LP)
Total Built: 168,311 (diesel)
Total Built: 17,732 (standard)

Mechanical

Power steering

Hydraulic wet disc brakes

Open operator station. Cab optional.

Drive: 4x2 2WD
Drive: 4x4 HFWD 4WD *Front-wheel assist was optional after 1969.
Differential Lock: mechanical rear OptOptional

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

Hitch

Rear Type: II
Rear Lift: 3790 lbs1719 kg

Pto

Rear Pto: independent
Rear Type: 540/1000 (1.375)
Rear Type: 1000 (1.375)
Engine Rpm: 540@1900
Engine Rpm: 1000@1900
Front Pto: independent
Front Pto Type: 1000

Serial Numbers

FAQ: How to read a serial number table.

1964: 65000
1965: 91000
1966: 119000
1967: 145660
1968: 173982
1969: 201000
1970: 222160
1971: 250000
1972: 260791
Final: 270288

Electrical

Ground: positive (1964-1969)
Ground: negative (1969-1972)
Ground: floating24V
Charging System: Motorola alternator
Charging Amps: 55
Batteries: 224V system
Batteries: 112V system
Battery Volts: 12
Battery Ah: 75

4020 / 02

Under the hood

Engine Detail (Option 1)

John Deere

diesel

6-cylinder 12-valve

liquid-cooled inline

Oil capacity on most 4020 diesels increased from 8 to 12 quarts starting with the 1969 model year, tractor serial number 201,000. High-crop diesel tractors retained the 8-quart capacity throughout the production run. Tractors fitted with after-market turbochargers, and early tractors with replacement oil pans, may also have the higher oil capacity.

Displacement: 404 ci6.6 L
Bore Stroke: 4.25x4.75 inches108 x 121 mm
Compression Ratio: 16.5:1
Rated Rpm: 2200
Idle Rpm: 600-2500
Operating Rpm: 1500-2200
Firing Order: 1-5-3-6-2-4
Starter Volts: 24
Coolant Capacity: 24 qts22.7 L
Intake Valve Clearance: 0.018 inches0.457 mm
Exhaust Valve Clearance: 0.018 inches0.457 mm
Fuel Type: diesel
Cylinders: 6
Cooling: liquid-cooled inline
Early Oil Capacity: 8 qts7.6 L
Late Oil Capacity: 12 qts11.4 L

Engine Detail (Option 2)

John Deere

gasoline

6-cylinder 12-valve

liquid-cooled inline

Original gasoline and LP-gas engine, used through the 1965 model year.

Displacement: 340 ci5.6 L
Bore Stroke: 4.25x4.00 inches108 x 102 mm
Compression Ratio: 7.5:1
Rated Rpm: 2200
Idle Rpm: 650-2500
Operating Rpm: 1500-2200
Firing Order: 1-5-3-6-2-4
Starter Volts: 12
Coolant Capacity: 24 qts22.7 L
Sparkplug Gap: 0.025 inches0.635 mm
Point Gap: 0.016 inches0.406 mm
Intake Valve Clearance: 0.015 inches0.381 mm
Exhaust Valve Clearance: 0.028 inches0.711 mm
Fuel Type: gasoline
Cylinders: 6
Cooling: liquid-cooled inline
Oil Capacity: 9 qts8.5 L

Engine Detail (Option 3)

John Deere

gasoline

6-cylinder 12-valve

liquid-cooled inline

The larger, 362 ci engine became available in 1966, replacing 340 ci engine.

Displacement: 362 ci5.9 L
Bore Stroke: 4.25x4.25 inches108 x 108 mm
Compression Ratio: 7.5:1
Rated Rpm: 2200
Firing Order: 1-5-3-6-2-4
Starter Volts: 12
Oil Capacity: 8 qts7.6 L
Coolant Capacity: 24 qts22.7 L
Fuel Type: gasoline
Cylinders: 6
Cooling: liquid-cooled inline

Engine Detail (Option 4)

John Deere

LP gas

6-cylinder 12-valve

liquid-cooled inline

Displacement: 362 ci5.9 L
Bore Stroke: 4.25x4.25 inches108 x 108 mm
Compression Ratio: 9.0:1
Rated Rpm: 2200
Firing Order: 1-5-3-6-2-4
Starter Volts: 12
Oil Capacity: 8 qts7.6 L
Coolant Capacity: 24 qts22.7 L
Fuel Type: LP gas
Cylinders: 6
Cooling: liquid-cooled inline

Engine Options

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

4020 / 03

Gears & controls

Transmission Options

8-speed partially synchronized

8-speed full power shift

Speeds

Row-crop tractor with 15.5-38 rear tires.

4020 / 04

Size. Stance. Footprint.

Dimensions

Length: 151 in383 cm
Width: 89.6 in227 cm
Height: 78.25 in198 cm
Wheelbase: 100.25 in254 cm
Front tread: 48.5 in123 cm
Rear tread: 60 in152 cm

TractorSpecs source ↗

Dimensions And Tires

Row Crop Wheelbase: 97.5 inches247 cm
Standard Wheelbase: 100.25 inches254 cm
Weight: 8225 to 9560 pounds
Front Tire: 6.00-16
Rear Tire: 15.5-38

Serial Number Location

Serial number plate on the rear of the 4020 transmission case.

Tires And Tracks

Front Ag: 6.00-16 (row crop)
Front Ag: 7.50-18 (standard)
Rear Ag: 15.5-38 (row crop)
Rear Ag: 18.4-34 (standard)

4020 / 05

Tractor Photos

See it in action

Videos

Watch John Deere 4020 videos from their original YouTube creators.

Tractor Tales: 1966 John Deere 4020 Diesel

Video by Farm Journal

Watch on YouTube ↗

4020 / 07

Tests (NTTL)

Tractor Tests

NTTL 849: diesel Syncro-Range 2WD

NTTL 850: gasoline Syncro-Range 2WD

NTTL 853: LP gas Syncro-Range 2WD

NTTL 930: diesel Syncro-Range 2WD

NTTL 934: LP gas Syncro-Range 2WD

NTTL 939: 340ci gasoline Syncro-Range 2WD

NTTL 1012: 362ci gasoline Power Shift 2WD

NTTL 1024: diesel Power Shift 2WD

Nebraska Tractor Test 849

Diesel Syncro-Range 2WDSeptember 23 - October 2, 1963

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 849
Power At Rated Engine Speed: 91.17 hp68.0 kW
Fuel Use: 6.4 gal/hour24.2 l/hour
Fuel Use: 5.6 gal/hour21.2 l/hour
Power At Rated Pto Speed: 83.57 hp62.3 kW
Max Power: 76.36 hp56.9 kW
Max Pull: 10,184 lbs4619 kg

Nebraska Tractor Test 850

Gasoline Syncro-Range 2WDSeptember 30 - October 7, 1963

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 850
Power At Rated Engine Speed: 88.09 hp65.7 kW
Fuel Use: 8.4 gal/hour31.8 l/hour
Fuel Use: 7.3 gal/hour27.6 l/hour
Fuel Use: 8.2 gal/hour31.0 l/hour
Power At Rated Pto Speed: 79.95 hp59.6 kW
Max Power: 73.06 hp54.5 kW
Max Pull: 10,088 lbs4575 kg

Nebraska Tractor Test 853

LP gas Syncro-Range 2WDOctober 5 - 11, 1963

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 853
Power At Rated Engine Speed: 90.48 hp67.5 kW
Fuel Use: 10.1 gal/hour38.2 l/hour
Fuel Use: 8.8 gal/hour33.3 l/hour
Fuel Use: 9.7 gal/hour36.7 l/hour
Power At Rated Pto Speed: 81.14 hp60.5 kW
Max Power: 75.19 hp56.1 kW
Max Pull: 10,217 lbs4634 kg

Nebraska Tractor Test 930

Diesel Syncro-Range 2WDNovember 16 - 20, 1965

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 930
Power At Rated Engine Speed: 94.88 hp70.8 kW
Fuel Use: 6.0 gal/hour22.7 l/hour
Fuel Use: 5.3 gal/hour20.1 l/hour
Power At Rated Pto Speed: 86.85 hp64.8 kW
Max Power: 83.79 hp62.5 kW
Max Pull: 11,249 lbs5102 kg

Nebraska Tractor Test 934

LP gas Syncro-Range 2WDApril 26 - May 2, 1966

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 934
Power At Rated Engine Speed: 94.67 hp70.6 kW
Fuel Use: 10.2 gal/hour38.6 l/hour
Fuel Use: 8.9 gal/hour33.7 l/hour
Power At Rated Pto Speed: 84.22 hp62.8 kW
Max Power: 83.59 hp62.3 kW
Max Pull: 10,674 lbs4841 kg

Nebraska Tractor Test 939

340ci gasoline Syncro-Range 2WDMay 17 - 24, 1966

PTO performance

Drawbar performance

Gear 4 used for power test.

Gear 2 used for pull test.

Id: 939
Power At Rated Engine Speed: 95.56 hp71.3 kW
Fuel Use: 7.9 gal/hour29.9 l/hour
Fuel Use: 6.9 gal/hour26.1 l/hour
Fuel Use: 7.7 gal/hour29.1 l/hour
Power At Rated Pto Speed: 85.81 hp64.0 kW
Max Power: 83.28 hp62.1 kW
Max Pull: 10,658 lbs4834 kg

Nebraska Tractor Test 1012

362ci gasoline Power Shift 2WDMay 13 - June 4, 1969

PTO performance

Drawbar performance

Id: 1012
Power At Rated Engine Speed: 95.66 hp71.3 kW
Fuel Use: 9.3 gal/hour35.2 l/hour
Fuel Use: 8.1 gal/hour30.7 l/hour
Power At Rated Pto Speed: 87.52 hp65.3 kW
Max Power: 82.57 hp61.6 kW

Nebraska Tractor Test 1024

Diesel Power Shift 2WDSeptember 30 - October 17, 1969

PTO performance

Drawbar performance

Id: 1024
Power At Rated Engine Speed: 95.83 hp71.5 kW
Fuel Use: 6.5 gal/hour24.6 l/hour
Fuel Use: 6.0 gal/hour22.7 l/hour
Fuel Use: 6.6 gal/hour25.0 l/hour
Power At Rated Pto Speed: 89.93 hp67.1 kW
Max Power: 83.09 hp62.0 kW