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Tractor · 1956Unverified

John Deere 720

John Deere 720 — Two-Cylinder 20 Series · 59 hp. Reference specifications; pending source verification.

The John Deere 720 is a compact tractor with a power rating of 59 hp, positioning it within its class. Manufactured between 1956 and 1958, this model features a 2-cylinder diesel liquid-cooled engine. It is equipped with two-wheel drive and a 6-speed gearbox, with a listed weight of 3079 kg. The John Deere 720 is designed for use in areas of approximately up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power
59 hp
Max power
39.1 kW
Weight
3079 kg

Catalogue coverage

Variants represented
2
Richest spec table
132 rows
Recorded power
59 hp
Recorded weight
3079 kg
Transmissions
6-speed unsynchronized gear
Production years
1956-1958
Verified variants
0

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference
Row-Crop tractorReference
Built in Waterloo, Iowa, USAReference
Total built22,925 (total row-crop)Reference
Total built13,930 (diesel)Reference
Total built4,917 (gasoline)Reference
Total built3,670 (LP-gas)Reference
Total built408 (all-fuel)Reference
Original price was $3,700 in 1958Reference
The John Deere model 720 was available in row-crop, standard, or high-crop versions.Reference
Two-wheel driveReference
SteeringmanualReference
SteeringpowerReference
Differential mechanical expanding shoe brakesReference
Open operator station.Reference

Variants

720row-crop chassisReference
720Sstandard-treadReference
720HChigh-cropReference

Engine

John Deere 5.9L 2-cyl gasolineReference
John Deere 5.9L 2-cyl all-fuelReference
John Deere 5.9L 2-cyl LP gasReference
John Deere 6.2L 2-cyl dieselReference
Fuel tank92.7 LReference
Fuel tank100.3 LReference
Fuel tank124.9 LReference
Fuel tank75.7 LReference
Aux. fuel3.8 LReference
Aux. fuel0.9 LReference
Drawbar (claimed)39.5 kWReference
Belt (claimed)37.8 kWReference
Drawbar (tested)39.8 kWReference
Belt (tested)43.1 kWReference
John DeereReference
gasolineReference
2-cylinder 4-valveReference
liquid-cooledReference
Displacement5.9 LReference
Bore/Stroke152 x 162 mmReference
Air cleaneroil bathReference
Compression6.14:1Reference
Rated RPM1125Reference
Firing order1-2Reference
Starter typeelectricReference
Oil capacity11.4 LReference
Oil capacity9.5 LReference
Coolant capacity27.4 LReference
all-fuelReference
Compression4.91:1Reference
LP gasReference
Compression7.94:1Reference
StarterelectricReference
Starter volts12Reference
dieselReference
Displacement6.2 LReference
Bore/Stroke156 x 162 mmReference
Compression16:1Reference
Starterpony motorReference
Starter volts6 (diesel pony)Reference
Starter volts24 (diesel electric)Reference
Oil capacity10.4 LReference
Oil capacity0.9 LReference
Belt power (max)42.8 kWReference
Max power39.1 kWReference
Belt power (max)42.3 kWReference
Max power38.6 kWReference
Belt power (max)43.1 kWReference
Max power39.8 kWReference
Belt power (max)32.9 kWReference
Max power30.4 kWReference

Transmission

6-speed unsynchronized gearReference
ManufacturerJohn DeereReference
Typeunsynchronized gearReference
Gears6 forward and 1 reverseReference
ClutchdryReference
Oil capacity28.4 LReference
Oil type[-17oC]Reference
0oF [-17oC]↑: SAE 90Reference
0oF [-17oC]↓: SAE 80Reference
1gear shiftReference
2pony motor clutchReference
3decompressionReference
4diesel throttleReference
5clutchReference
6pony motor throttleReference

PTO & Hydraulics

PTO (claimed)44.0 kWReference
Typeopen centerReference
Valves1Reference
Rear TypeIIReference
Rear PTOliveReference
Rear PTO Type540 (1.375)Reference

Dimensions

Wheelbase237 cmReference
Weight3079 kgReference
Front tire6.00-16Reference
Rear tire12-38Reference
Ag front6.00-16Reference
Ag rear12-38Reference
Length343 cmReference
Width220 cmReference
Height224 cmReference

John Deere 720 attachments

front-end loaderReference

720 Serial Number Location

Right side of tractor in front of and below pulley.Reference

720 Serial Numbers

19567200000Reference
19577203420Reference
19587217368Reference
FAQ: How to read a serial number table.Reference

Electrical

GroundpositiveReference
GroundfloatingReference
Charging systemgeneratorReference
Batteries1 (diesel pony)Reference
Batteries2 (gas/LP)Reference
Batteries4 (diesel electric)Reference
Battery volts6Reference

Test results

NTTL 593: LP gas 6-speed 2WDReference
NTTL 594: diesel 6-speed 2WDReference
NTTL 605: gasoline 6-speed 2WDReference
NTTL 606: tractor fuel 6-speed 2WDReference
LP gas 6-speed 2WDSeptember 17 - 19, 1956Link: Nebraska Tractor Test 593 fileReference
Belt fuel use (max)23.8 l/hourReference
Drawbar performanceReference
Gear 4 used for power test.Reference
Max pull3037 kgReference
Gear 1 used for pull test.Reference
Diesel 6-speed 2WDSeptember 18 - 22, 1956Link: Nebraska Tractor Test 594 fileReference
Belt fuel use (max)12.1 l/hourReference
Max pull2969 kgReference
Gasoline 6-speed 2WDNovember 6 - 12, 1956Link: Nebraska Tractor Test 605 fileReference
Belt fuel use (max)19.7 l/hourReference
Max pull3015 kgReference
Tractor fuel 6-speed 2WDNovember 12 - 19, 1956Link: Nebraska Tractor Test 606 fileReference
Belt fuel use (max)16.7 l/hourReference
Max pull2997 kgReference

Speeds

With 13.6-38 rear tires.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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