John Deere 4020

John Deere 4020 Row-Crop tractor Technical Specifications

John Deere 4020 is a Row-Crop tractor that was produced by the John Deere between 1963 – 1972.

Below you will find detailed technical specifications for John Deere 4020 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 4020 Production

Manufacturer:
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

John Deere 4020 Power

Engine:	83.79 hp 62.5 kW
PTO (tested)	95.83 hp 71.5 kW

John Deere 4020 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

John Deere 4020 Mechanical

Drive	4×2 2WD
	4×4 HFWD 4WD *Front-wheel assist was optional after 1969.
Differential lock	mechanical rear OptOptional
Power steering
Hydraulic wet disc brakes
Open operator station. Cab optional.

Capacity

Gasoline Fuel	34 gal 128.7 L
Diesel Fuel	34 gal 128.7 L
LP-gas Fuel	45 gal 170.3 L
Syncro-Range Hydraulic system	10 gal 37.9 L
Power Shift Hydraulic system	12 gal 45.4 L

Hydraulics

Type	closed center
Syncro-Range Capacity	10 gal 37.9 L
Power Shift Capacity	12 gal 45.4 L
Pressure	2250 psi 155.1 bar
Valves	1
SCV flow	6 gpm 22.7 lpm
Total flow	18 gpm (early) 68.1 lpm

Tracktor Hitch

Rear Type	II
Rear lift	3790 lbs 1719 kg

Power Take-off (PTO)

Rear PTO	independent
Rear RPM	540/1000
	1000
Engine RPM	540@1900 1000@1900
Front PTO	independent
Front RPM	1000
Engine RPM	1000@1900

Title serial numbers

1964	65000
1965	91000
1966	119000
1967	145660
1968	173982
1969	201000
1970	222160
1971	250000
1972	260791
Final	270288
FAQ: How to read a serial number table.

What year is my John Deere 4020? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

John Deere 4020 Engine detail

Engine Detail
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 ci 6.6 L
Bore/Stroke	4.25×4.75 inches 108 x 121 mm
Compression	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 qts 22.7 L
Intake valve clearance	0.018 inches 0.457 mm
Exhaust valve clearance	0.018 inches 0.457 mm

Engine Oil
Early Oil capacity	8 qts 7.6 L
Late Oil capacity	12 qts 11.4 L

John Deere 4020 Transmission overview

Transmission	John Deere Syncro-Range
Type	partially synchronized
Gears	8 forward and 2 reverse
Oil capacity	52 qts 49.2 L
Oil type	303 Special
Synchro-Range requires the tractor to be stopped and clutch depressed to select one of four shift stations. Once a station is selected the tractor can be shifted on the move between the two forward gears (and single reverse in stations 1 and 2) by using the clutch.

John Deere 4020 Dimensions

Row crop Wheelbase	97.5 inches 247 cm
Standard Wheelbase	100.25 inches 254 cm
Length	151 inches 383 cm
Width	89.6 inches 227 cm
Regular rear axle	3.375 by 91 inches 85 by 2311 mm
Long rear axle	3.375 by 104 inches 85 by 2641 mm
Extra long rear axle	3.375 by 112 inches 85 by 2844 mm
Front tread	48.5 to 82.25 inches 123 to 208 cm
Rear tread	60 to 91 inches 152 to 231 cm
Rear tread	66 to 97 inches 167 to 246 cm (long axle)
Rear tread	67 to 105 inches 170 to 266 cm (extra long axle)

John Deere 4020 Weight
Shipping	8,436 lbs (diesel syncro) 3826 kg
	8,225 lbs (gas syncro) 3730 kg
	8,319 lbs (LP syncro) 3773 kg
Operating	8,645 lbs (gas syncro) 3921 kg
	8,945 lbs (diesel syncro) 4057 kg
	9,240 lbs (gas powershift) 4191 kg
	9,560 lbs (diesel powershift) 4336 kg
Ballasted	13,980 lbs*Diesel Powershift with 18.4-34 rear tires with fluid plus front and rear cast iron weights. 6341 kg

John Deere 4020 Height
Row-crop Steering wheel	77.9 inches 197 cm
Standard Steering wheel	78.25 inches 198 cm
Standard Exhaust	88.25 inches 224 cm
Row crop Exhaust	88.75 inches 225 cm

John Deere 4020 Tests

Nebraska Tractor Test 849

Nebraska Tractor Test 849
Diesel Syncro-Range 2WD September 23 – October 2, 1963 Link: Nebraska Tractor Test 849 file
PTO performance
Power at rated engine speed	91.17 hp 68.0 kW
Fuel use	6.4 gal/hour 24.2 l/hour
Power at rated PTO speed	83.57 hp 62.3 kW
Fuel use	5.6 gal/hour 21.2 l/hour
Drawbar performance
Max power	76.36 hp 56.9 kW
Fuel use	6.4 gal/hour 24.2 l/hour
Gear 4 used for power test.
Max pull	10,184 lbs 4619 kg
Gear 2 used for pull test.

Nebraska Tractor Test 850

Nebraska Tractor Test 850
Gasoline Syncro-Range 2WD September 30 – October 7, 1963 Link: Nebraska Tractor Test 850 file
PTO performance
Power at rated engine speed	88.09 hp 65.7 kW
Fuel use	8.4 gal/hour 31.8 l/hour
Power at rated PTO speed	79.95 hp 59.6 kW
Fuel use	7.3 gal/hour 27.6 l/hour
Drawbar performance
Max power	73.06 hp 54.5 kW
Fuel use	8.2 gal/hour 31.0 l/hour
Gear 4 used for power test.
Max pull	10,088 lbs 4575 kg
Gear 2 used for pull test.

Nebraska Tractor Test 853

Nebraska Tractor Test 853
LP gas Syncro-Range 2WD October 5 – 11, 1963 Link: Nebraska Tractor Test 853 file
PTO performance
Power at rated engine speed	90.48 hp 67.5 kW
Fuel use	10.1 gal/hour 38.2 l/hour
Power at rated PTO speed	81.14 hp 60.5 kW
Fuel use	8.8 gal/hour 33.3 l/hour
Drawbar performance
Max power	75.19 hp 56.1 kW
Fuel use	9.7 gal/hour 36.7 l/hour
Gear 4 used for power test.
Max pull	10,217 lbs 4634 kg
Gear 2 used for pull test.

Nebraska Tractor Test 930

Nebraska Tractor Test 930
Diesel Syncro-Range 2WD November 16 – 20, 1965 Link: Nebraska Tractor Test 930 file
PTO performance
Power at rated engine speed	94.88 hp 70.8 kW
Fuel use	6.0 gal/hour 22.7 l/hour
Power at rated PTO speed	86.85 hp 64.8 kW
Fuel use	5.3 gal/hour 20.1 l/hour
Drawbar performance
Max power	83.79 hp 62.5 kW
Fuel use	6.0 gal/hour 22.7 l/hour
Gear 4 used for power test.
Max pull	11,249 lbs 5102 kg
Gear 2 used for pull test.

Nebraska Tractor Test 934

Nebraska Tractor Test 934
LP gas Syncro-Range 2WD April 26 – May 2, 1966 Link: Nebraska Tractor Test 934 file
PTO performance
Power at rated engine speed	94.67 hp 70.6 kW
Fuel use	10.2 gal/hour 38.6 l/hour
Power at rated PTO speed	84.22 hp 62.8 kW
Fuel use	8.9 gal/hour 33.7 l/hour
Drawbar performance
Max power	83.59 hp 62.3 kW
Fuel use	10.2 gal/hour 38.6 l/hour
Gear 4 used for power test.
Max pull	10,674 lbs 4841 kg
Gear 2 used for pull test.

Nebraska Tractor Test 939

Nebraska Tractor Test 939
340ci gasoline Syncro-Range 2WD May 17 – 24, 1966 Link: Nebraska Tractor Test 939 file
PTO performance
Power at rated engine speed	95.56 hp 71.3 kW
Fuel use	7.9 gal/hour 29.9 l/hour
Power at rated PTO speed	85.81 hp 64.0 kW
Fuel use	6.9 gal/hour 26.1 l/hour
Drawbar performance
Max power	83.28 hp 62.1 kW
Fuel use	7.7 gal/hour 29.1 l/hour
Gear 4 used for power test.
Max pull	10,658 lbs 4834 kg
Gear 2 used for pull test.

Nebraska Tractor Test 1012

Nebraska Tractor Test 1012
362ci gasoline Power Shift 2WD May 13 – June 4, 1969 Link: Nebraska Tractor Test 1012 file
PTO performance
Power at rated engine speed	95.66 hp 71.3 kW
Fuel use	9.3 gal/hour 35.2 l/hour
Power at rated PTO speed	87.52 hp 65.3 kW
Fuel use	8.1 gal/hour 30.7 l/hour
Drawbar performance
Max power	82.57 hp 61.6 kW
Fuel use	9.3 gal/hour 35.2 l/hour

Nebraska Tractor Test 1024

Nebraska Tractor Test 1024
Diesel Power Shift 2WD September 30 – October 17, 1969 Link: Nebraska Tractor Test 1024 file
PTO performance
Power at rated engine speed	95.83 hp 71.5 kW
Fuel use	6.5 gal/hour 24.6 l/hour
Power at rated PTO speed	89.93 hp 67.1 kW
Fuel use	6.0 gal/hour 22.7 l/hour
Drawbar performance
Max power	83.09 hp 62.0 kW
Fuel use	6.6 gal/hour 25.0 l/hour

John Deere 4020 Attachments

FAQ

Is John Deere 4020 a good tractor?

The John Deere 4020 is one of the great tractors in the John Deere stable, and it has earned John Deere a fantastic reputation.

How much oil does a John Deere 4020 take?

Check out the John Deere 4020 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year John Deere made the 4020?

The John Deere 4020 was an agricultural tractor model made from 1963 – 1972

How much horsepower is a John Deere 4020?

The 4020 engine tested at 83.79 hp
62.5 kW drawbar and 95.83 hp
71.5 kW kW PTO horsepower.

How much does a John Deere 4020 tractor weight?

Depending on the engine type, the John Deere 4020 weight ranges from 8225 to 9560 pounds .

How much can a John Deere 4020 Pull?

The max pulling capacity of the John Deere 4020 tractors starts at 10,184 lbs
4619 kg but may be slightly higher depending on the trim.

How much can a John John Deere 4020 Lift?

John Deere 4020 tractor hitch is capable of lifting 3790 lbs
1719 kg.