John Deere

John Deere 620

The John Deere 620 is a row-crop tractor produced from 1956 to 1958 as part of the Two-Cylinder 20 Series. It was built in Waterloo, Iowa, USA, with a total production of 20,848 units. The tractor features a 5.0L 2-cylinder engine available in gasoline, all-fuel, and LP gas variants. It has a 6-speed unsynchronized transmission and offers 44 hp drawbar power (claimed). The 620 includes power assist steering, mechanical contracting band brakes, and an open operator station. It supports a rear Type II hitch and a 540 rpm PTO. The tractor weighs between 5,858 and 6,800 lbs depending on configuration, with ballasted weight up to 8,769 lbs. It has various tire options and dimensions suitable for row-crop farming. Attachments include a 45 Loader with 2000 lbs lift capacity. Electrical system uses positive ground with two 6-volt batteries.

Power53 hp[P]

Founded1956 - 1958

Model620

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Technical Specifications

Detailed specifications and technical data for John Deere 620

Power

Belt (tested)	49.19 hp (36.7 kW)
PTO (claimed)	48 hp (35.8 kW)
Drawbar (tested)	44.81 hp (33.4 kW)
Drawbar (claimed)	44 hp (32.8 kW)

Engine

Options	John Deere 5.0L 2-cyl gasoline, John Deere 5.0L 2-cyl all-fuel, John Deere 5.0L 2-cyl LP gas
LP gas engine	John Deere, LP gas, 2-cylinder 4-valve, liquid-cooled, Displacement 302.9 ci (5.0 L), Bore/Stroke 5.50x6.375 inches (140 x 162 mm), Air cleaner oil bath, Compression 8.1:1, Rated RPM 1125, Firing order 1-2, Starter volts 12, Oil capacity 8 qts (7.6 L)
Auxiliary fuel	1 gal (3.8 L)
All-fuel engine	John Deere, all-fuel, 2-cylinder 4-valve, liquid-cooled, Displacement 302.9 ci (5.0 L), Bore/Stroke 5.50x6.375 inches (140 x 162 mm), Air cleaner oil bath, Compression 4.78:1, Rated RPM 1125, Firing order 1-2, Starter volts 12, Oil capacity 8 qts (7.6 L)
Gasoline engine	John Deere, gasoline, 2-cylinder 4-valve, liquid-cooled, Displacement 302.9 ci (5.0 L), Bore/Stroke 5.50x6.375 inches (140 x 162 mm), Rated RPM 1125, Firing order 1-2, Starter volts 12, Oil capacity 8 qts (7.6 L), Coolant capacity 26 qts (24.6 L), 28 qts (orchard) (26.5 L)
Fuel tank capacity	20.5 gal (all-fuel) (77.6 L), 22.25 gal (gasoline) (84.2 L), 33 gal (LP gas) (124.9 L)

Variants

620	row-crop
620O	orchard
620S	standard
620HC	high-crop

Electrical

Ground	positive
Batteries	2
Battery volts	6

Hydraulics

Valves	1 or 2
Pressure	1200 psi (82.7 bar)
Pump flow	8.9 gpm (33.7 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Differential mechanical contracting band brakes
Steering	power assist
Operator station	Open operator station

Production

Type	Row-Crop tractor
Built in	Waterloo, Iowa, USA
Total built	20,848
Manufacturer	John Deere
Original price	$3,000 in 1956
Years produced	1956 - 1958

Attachments

Loader	45 Loader
Lift height	126 inches height (at pin) (320 cm)
Lift capacity	2000 lbs lift (full at pin) (907 kg)

Transmission

Type	unsynchronized gear
Gears	6 forward and 1 reverse
Clutch	mechanical dry disc
Manufacturer	John Deere
Oil capacity	24 qts (22.7 L)

Tractor hitch

Rear Type	II

Serial Numbers

1956	6200000
1957	6203778
1958	6215048
Final	6222686
Serial number location	Serial number plate on the right side of the 620 tractor frame, below the belt pulley.

Dimensions & Tires

Width	86.625 inches (220 cm)
Height	88.125 inches (223 cm)
Length	135.25 inches (343 cm)
Rear tire	12.4-38, 13-30 (standard)
Wheelbase	90 inches (228 cm)
Front tire	6.00-16, 7.50-20 (high-crop)
Rear tread	58 to 88 inches (147 to 223 cm), 58 to 104 inches (147 to 264 cm) (long axle)
High-crop Width	74 inches (187 cm)
Shipping weight	5,858 lbs (2657 kg)
Ballasted weight	8,769 lbs (3977 kg)
High-crop Height	96.75 inches (245 cm)
High-crop Length	147.1875 inches (373 cm)
Operating weight	6,800 lbs (3084 kg)