Tractor · 1956Unverified
John Deere 620
John Deere 620 — Two-Cylinder 20 Series · 48 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
48 hp
Max power
33.4 kW
Weight
5858 to 6800 pounds
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Row-Crop tractorReference
Built in Waterloo, Iowa, USAReference
Total built20,848Reference
Original price was $3,000 in 1956Reference
Two-wheel driveReference
Steeringpower assistReference
Differential mechanical contracting band brakesReference
Open operator station.Reference
Variants
620row-cropReference
620SstandardReference
620OorchardReference
620HChigh-cropReference
Engine
John Deere 5.0L 2-cyl gasolineReference
John Deere 5.0L 2-cyl all-fuelReference
John Deere 5.0L 2-cyl LP gasReference
Fuel tank77.6 LReference
Fuel tank84.2 LReference
Fuel tank124.9 LReference
Aux. fuel3.8 LReference
Drawbar (claimed)32.8 kWReference
Drawbar (tested)33.4 kWReference
Belt (tested)36.7 kWReference
John DeereReference
gasolineReference
2-cylinder 4-valveReference
liquid-cooledReference
Displacement5.0 LReference
Bore/Stroke140 x 162 mmReference
Rated RPM1125Reference
Firing order1-2Reference
Starter volts12Reference
Oil capacity7.6 LReference
Coolant capacity24.6 LReference
Coolant capacity26.5 LReference
all-fuelReference
Air cleaneroil bathReference
Compression4.78:1Reference
LP gasReference
Compression8.1:1Reference
Belt power (max)36.7 kWReference
Max power33.4 kWReference
Belt power (max)34.9 kWReference
Max power31.6 kWReference
Belt power (max)25.8 kWReference
Max power24.1 kWReference
Transmission
6-speed unsynchronized gearReference
ManufacturerJohn DeereReference
Typeunsynchronized gearReference
Gears6 forward and 1 reverseReference
Clutchmechanical dry discReference
Oil capacity22.7 LReference
PTO & Hydraulics
PTO (claimed)35.8 kWReference
Pressure82.7 barReference
Valves1 or 2Reference
Pump flow33.7 lpmReference
Rear TypeIIReference
Rear PTO Type540Reference
Dimensions
Wheelbase228 cmReference
Weight5858 to 6800 poundsReference
Front tire6.00-16Reference
Rear tire12.4-38Reference
Ag front6.00-16Reference
Ag front7.50-20 (high-crop)Reference
Ag rear12.4-38Reference
Ag rear13-30 (standard)Reference
Length343 cmReference
High-crop Length373 cmReference
Width220 cmReference
High-crop Width187 cmReference
Height223 cmReference
High-crop Height245 cmReference
Rear tread147 to 223 cmReference
Rear tread147 to 264 cmReference
Shipping2657 kgReference
Operating3084 kgReference
Ballasted3977 kgReference
John Deere 620 attachments
front-end loaderReference
620 Serial Number Location
Serial number plate on the right side of the 620 tractor frame, below the belt pulley.Reference
620 Serial Numbers
19566200000Reference
19576203778Reference
19586215048Reference
Final6222686Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundpositiveReference
Batteries2Reference
Battery volts6Reference
Test results
NTTL 591: LP gas 6-speed 2WDReference
NTTL 598: gasoline 6-speed 2WDReference
NTTL 604: tractor fuel 6-speed 2WDReference
LP gas 6-speed 2WDSeptember 6 - 11, 1956Link: Nebraska Tractor Test 591 fileReference
Belt fuel use (max)19.7 l/hourReference
Drawbar performanceReference
Gear 4 used for power test.Reference
Max pull2685 kgReference
Gear 2 used for pull test.Reference
Gasoline 6-speed 2WDOctober 10 - 15, 1956Link: Nebraska Tractor Test 598 fileReference
Belt fuel use (max)15.9 l/hourReference
Max pull2776 kgReference
Gear 1 used for pull test.Reference
Tractor fuel 6-speed 2WDNovember 1 - 8, 1956Link: Nebraska Tractor Test 604 fileReference
Belt fuel use (max)12.9 l/hourReference
Max pull2770 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.