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John Deere 4620

John Deere 4620 tractor
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The John Deere 4620 is a row-crop tractor produced from 1971 to 1972. It was built in Waterloo, Iowa, USA, with a total production of 6,928 units. It features a John Deere 6.6L 6-cylinder intercooled turbocharged diesel engine, producing an estimated 127.8 hp. Transmission options include an 8-speed partially synchronized Syncro-Range and an 8-speed full power shift Power Shift. The tractor offers 4x2 2WD and 4x4 HFWD 4WD drive options, with planetary final drives and hydro-mechanical rear differential lock. It has a PTO rated at 135 hp and tested drawbar power of 115.75 hp. The 4620 has a wheelbase of 106.5 inches and weighs between 12,980 and 14,930 pounds operating weight. It features an open operator station with optional ROPS, canopy, or cab. Fuel capacity is 50 gallons, and hydraulic system capacity varies by transmission type. The tractor is equipped with a rear independent PTO and a type III/II rear hitch.
John Deere 4620tractor specsrow-crop tractor6.6L diesel engineSyncro-RangePower Shift135 hp PTO1971 tractor
Power150 hp[P]
Founded1971 - 1972
Model4620

Technical Specifications

Detailed specifications and technical data for John Deere 4620

Power

PTO (tested):135.76 hp (101.2 kW)
PTO (claimed):135 hp (100.7 kW)
Drawbar (tested):115.75 hp (86.3 kW)

Engine

Make:John Deere
Type:intercooled turbocharged diesel
Cooling:liquid-cooled
Idle RPM:800-2200
Cylinders:6-cylinder
Rated RPM:2200
Air cleaner:dry with safety element
Bore/Stroke:4.25x4.75 inches (108 x 121 mm)
Displacement:404 ci (6.6 L)
Firing order:1-5-3-6-2-4
Oil capacity:16 qts (15.1 L)
Operating RPM:1500-2200
Starter volts:12
Coolant capacity:28 qts (26.5 L)
Compression ratio:16.4:1

Weight

Shipping:12980 lbs (5887 kg)
Ballasted:18640 lbs (8455 kg)
Operating:14930 lbs (6772 kg)

Capacity

Fuel:50 gal (189.2 L)
Hydraulic system:16 gal (Syncro), 18 gal (Powershift)

Electrical

Ground:negative
Batteries:2
Battery volts:6
Charging system:alternator

Hydraulics

Type:closed center
Capacity:16 gal (Syncro), 18 gal (Powershift)

Mechanical

Drive:4x2 2WD, 4x4 HFWD 4WD
Brakes:Hydraulic wet disc brakes
Steering:hydrostatic power
Final drives:planetary
Operator station:Open operator station. Optional two-post Roll-Gard ROPS and canopy. Cab optional.
Differential lock:hydro-mechanical rear

Production

Type:Row-Crop tractor
Built in:Waterloo, Iowa, USA
Years made:1971 - 1972
Total built:6,928
Original price:$15,000 in 1972
Power Shift built:1,883
Syncro-Range built:5,045

Transmission

Options:8-speed partially synchronized, 8-speed full power shift

Power Shift

Type:full power shift
Gears:8 forward and 4 reverse
Clutch:hydraulic wet discs
Oil capacity:72 qts (68.1 L)

Syncro-Range

Type:partially synchronized
Gears:8 forward and 2 reverse
Clutch:14.75-inch dry disc
Oil capacity:64 qts (60.6 L)

Tractor hitch

Rear Type:III/II

Dimensions & Tires

Width:95.8 inches (243 cm), 108 inches (long axle, 274 cm), 118 inches (extra long axle, 299 cm)
Height:106 inches (269 cm)
Length:170.7 inches (433 cm)
Rear tire:20.8-38
Wheelbase:106.5 inches (270 cm)
Front tire:11.00-16
Rear tread:70 to 100 inches (177 to 254 cm, cast wheels), 60 to 107.5 inches (152 to 273 cm, offset wheels), 70 to 112 inches (177 to 284 cm, long axle), 60 to 120 inches (152 to 304 cm, offset long axle), 70 to 122 inches (177 to 309 cm, extra long axle), 60 to 130 inches (152 to 330 cm, cast extra long axle)
Front tread:56 to 84.8 inches (142 to 215 cm), 64 to 88 inches (wide axle, 162 to 223 cm), 72 to 88 inches (4WD, 182 to 223 cm)
Clearance (drawbar):17.8 inches (45 cm)
Additional rear tires:18.4-38, 24.5-32, 12.4-42 (duals), 15.5-38 (duals), 16.9-38 (duals), 18.4-38 (duals), 20.8-38 (duals)
Clearance (rear axle):31.1 inches (78 cm), 29.4 inches (rear housing, 74 cm)
Additional front tires:9.50-20, 10.00-16, 14L-16A, 14.9-24 (4WD)
Clearance (front axle):23.8 inches (60 cm)
Height (steering wheel):87 inches (220 cm)

Power Take-off (PTO)

Rear PTO:independent
Engine RPM:1000@1900
Rear PTO Type:1000

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