John Deere 4020 HP, Price, Specs, Serial Numbers, History & Features

John Deere 4020 Tractor HP, Price, Review, Specs, History, Serial Numbers, Weight, Features & Images

The John Deere 4020 was an agricultural tractor model built by John Deere Manufacturing company from 1964 to 1972.

John Deere 4020 replaced the nearly identical John Deere 4010 introduced with Deere’s New Generation series in 1960 and offered several improvements over the previous tractor model, including heavier rear axles, more horsepower, and a differential lock.

The John Deere 4020 was produced with three engine choices: petrol, diesel, and LPG. The John Deere 4020 Diesel tractor equipped with a six-cylinder engine tested at 84 drawbars and 91 PTO horsepower.

John Deere’s Syncro Range transmission system with 8 forward speeds and 2 reverse speeds as standard, a power shift transmission system was optional. Other choices included dual rear wheels and an enclosed cab with air conditioning and heat.

The John Deere 4020 tractor is significant for its excellent popularity; over 184,000 units were produced. John Deere 4020 was the most popular tractor of its time.

Now, let’s find out the John Deere 4020 Tractor HP, Price, Specs, Review, Features & Images and more. I hope it will be useful to you.

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John Deere 4020 Tractor Price

John Deere 4020 Tractor HP, Price, Review, Specs, History, Serial Numbers, Weight, Features & Images

Original Price: $10,345 (1972 )

John Deere 4020 Powershift

2wd Diesel, 540/1000 PTO,3 Point Hitch, 2 Hyd.

John Deere 4020 Tractor Overview

Type agricultural
Manufacturer John Deere
Production 1964–1972
Length 151 inches
Width 89.6 inches
Height 77.9 inches (row crop steering)
78.25 inches (standard steering)
88.25 inches (standard exhaust)
88.75 inches (row crop exhaust)
Weight 8,645 (gas synchro)
8,945 (diesel synchro)
9,240 (gas powershift)
9,560 (diesel powershift)
Propulsion wheels

John Deere 4020 Serial Number

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

John Deere 4020 Tractor Review Video

John Deere 4020 Tractor Specifications

JOHN DEERE 4020 KEY SPECIFICATIONS

Model 4020
Manufaturer John Deere
Drive 2WD / MFWD (wheel drive)
Model introduced 1963
Model discontinued 1972
Model status Discontinued
No. produced 1,84,879
Preceded by John Deere 4010
Superseded by John Deere 4230

JOHN DEERE 4020 ENGINE

Engine make John Deere
Engine Type Six cylinder, variable speed, wet sleeve, valve in head  
Governed speed range 800 rpm to 2,200 rpm
Operating speed range 1,500 rpm to 2,200 rpm
Maximum transport speed 2,500 rpm
Fuel type Gasoline, LP Gas, Diesel
Power 95 hp
Power 71 kW
Displacement cu in /  litre 404 cu in (diesel) 340 or 362 cu in (gas) 340 cu in (LP)
No. of Cylinders 6
Lubrication Full-pressure, full-flow filtration with bypass; micronic paper element
Cooling liquid Water
Cooling system Pressure with centrifugal pump and thermostatic heat control
Air cleaner Dry-type with restriction indicator
Fuel tank capacity Gas – 34 gallons LP Gas – 45 gallons 

Diesel – 34 gallons (80 percent full)

JOHN DEERE 4020 HYDRAULIC SYSTEM

Hydraulics Closed centre, constant pressure, variable displacement system
Linkage Category Category II
Lifting capacity (lb/kg) 3,790 lbs

JOHN DEERE 4020 TRANSMISSION

Transmission Type Syncro-Range,  Constant-mesh, helical gears, range-synchronized
Gears Eight forward, two reverse Power Shift – Multiple wet-disk, hydraulically actuated, eight forward, four reverse
Clutch Type Syncro-Range, Foot-operated, spring-loaded, 12-inch dry-disk
Power Shift Multiple wet-disk, foot-operated (not required for shifting), hand operated, dry-disk engine disconnect
Steering Full power, hydrostatic type, provision for manual operation

JOHN DEERE 4020 BRAKES

Brakes Full power
Type wet disk type, foot-operated individually or simultaneously, provision manual operation

JOHN DEERE 4020 DIFFERENTIAL LOCK

Type Foot operated, multiple wet disks, hydraulically actuated

JOHN DEERE 4020 POWER TAKE OFF (PTO)

Power Take-Off Type Independent 540-1,000 rpm rear, 1,000 rpm front
On Syncro Range Models Hydraulic assist dry disc 
On Power Shift models Hydraulic, multiple wet-disk 

JOHN DEERE 4020 DIMENSIONS AND WEIGHT

Weight (nominal) lb/kg 8,225 lbs to 13,980 lbs
Wheelbase 100.25 in/2546.35 mm
Length 150.98 in/3835 mm
Width 89.60 in/2276 mm

JOHN DEERE 4020 ELECTRICAL SYSTEM

Electrical System 12-volt lighting, accessories, and starting, alternat

JOHN DEERE 4020 INSTRUMENTAL PANEL

Speed hour meter
Fuel gauge
Engine temperature gauge
Engine oil pressure light
Alternator light
Transmission temperature gauge
Transmission oil pressure light (Power Shift Models)
Air cleaner light, tractor light switch
Key start switch
Cigar lighter
Fibre optic instrument panel lighting

Final Words

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