John Deere 4620 tractor specifications

1971 - 1972

1971 - 1972 Row-Crop tractor

Production

Production Manufacturer:John Deere
Type:Row-Crop tractor
Factory:Waterloo, Iowa, USA
Total built:6,928
5,045 (Syncro-Range)
1,883 (Power Shift)
Original price:$15,000 (1972 )

John Deere 4620 Power

John Deere 4620 Power PTO (claimed):135 hp
100.7 kW
Drawbar (tested):115.75 hp
86.3 kW
PTO (tested):135.76 hp
101.2 kW
power test details ...

1971 - 1972

Row-Crop tractor

Nebraska Tractor Test 1064

Nebraska Tractor Test 1064
Diesel PowerShift 2WD April 20 - May 4, 1971 Link: Nebraska Tractor Test 1064 file
PTO performance
Power at rated engine speed:	135.62 hp 101.1 kW
Fuel use:	9.2 gal/hour 34.8 l/hour
Power at rated PTO speed:	130.79 hp 97.5 kW
Fuel use:	8.3 gal/hour 31.4 l/hour
Drawbar performance
Max power:	110.92 hp 82.7 kW
Fuel use:	9.1 gal/hour 34.4 l/hour
Gear 4 used for power test.
Max pull:	14,471 lbs 6564 kg
Gear 2 used for pull test.

Nebraska Tractor Test 1073

Nebraska Tractor Test 1073
Diesel SyncroRange 2WD June 16 - 22, 1971 Link: Nebraska Tractor Test 1073 file
PTO performance
Power at rated engine speed:	135.76 hp 101.2 kW
Fuel use:	9.2 gal/hour 34.8 l/hour
Power at rated PTO speed:	130.27 hp 97.1 kW
Fuel use:	8.4 gal/hour 31.8 l/hour
Drawbar performance
Max power:	115.75 hp 86.3 kW
Fuel use:	9.1 gal/hour 34.4 l/hour
Gear 4 used for power test.
Max pull:	13,916 lbs 6312 kg
Gear 2 used for pull test.

John Deere 4620 Engine

John Deere 4620 Engine John Deere 6.6L 6-cyl diesel Engine details ...

1971 - 1972

Row-Crop tractor

Engine Detail

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

Mechanical

Mechanical Chassis:4x2 2WD
4x4 HFWD 4WD
Final drives:planetary
Differential lock:hydro-mechanical rear
Steering:hydrostatic power
Brakes:hydraulic wet disc
Cab:Open operator station. Optional two-post Roll-Gard ROPS and canopy. Cab optional.
Transmissions:8-speed partially synchronized
8-speed full power shift
Transmission details ...

1971 - 1972

Row-Crop tractor

Transmissions overview

Transmissions overview
8-speed partially synchronized
8-speed full power shift

Transmission

Transmission
Transmission:	John Deere Syncro-Range
Type:	partially synchronized
Gears:	8 forward and 2 reverse
Clutch:	14.75-inch dry disc
Oil capacity:	64 qts 60.6 L

Speeds

Speeds

Transmission

Transmission
Transmission:	John Deere Power Shift
Type:	full power shift
Gears:	8 forward and 4 reverse
Clutch:	hydraulic wet discs
Oil capacity:	72 qts 68.1 L

Speeds

Speeds
With 20.8-38 rear tires.

Capacity

Capacity Fuel:50 gal
189.3 L
Hydraulic system:16 gal
60.6 L (Syncro)
18 gal
68.1 L (Powershift)

Hydraulics

Hydraulics Type:closed center
Capacity:16 gal
60.6 L (Syncro)
18 gal
68.1 L (Powershift)

Tractor hitch

Tractor hitch Rear Type:III/II

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:1000
Engine RPM:1000@1900

Dimensions & Tires

Dimensions & Tires Wheelbase:106.5 inches
270 cm
Weight:12980 to 14930 pounds
Front tire:11.00-16
Rear tire:20.8-38
Full dimensions and tires ...

1971 - 1972

Row-Crop tractor

John Deere 4620 Tires

John Deere 4620 Tires
Ag front:	11.00-16
Ag rear:	20.8-38
Ag front:	9.50-20
	10.00-16
	14L-16A
	14.9-24 (4WD)
Ag rear:	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)

Dimensions

Dimensions
Wheelbase:	106.5 inches 270 cm
Length:	170.7 inches 433 cm
Width:	95.8 inches 243 cm
	108 inches 274 cm (long axle)
	118 inches 299 cm (extra long axle)
Height:	106 inches 269 cm
Height (steering wheel):	87 inches 220 cm
Clearance (front axle):	23.8 inches 60 cm
Clearance (rear axle):	31.1 inches 78 cm
	29.4 inches 74 cm (rear housing)
Clearance (drawbar):	17.8 inches 45 cm
Front tread:	56 to 84.8 inches 142 to 215 cm
Front tread:	64 to 88 inches 162 to 223 cm (wide axle)
Front tread:	72 to 88 inches 182 to 223 cm (4WD)
Rear tread:	70 to 100 inches 177 to 254 cm (cast wheels)
Rear tread:	60 to 107.5 inches 152 to 273 cm (offset wheels)
Rear tread:	70 to 112 inches 177 to 284 cm (long axle)
Rear tread:	60 to 120 inches 152 to 304 cm (offset long axle)
Rear tread:	70 to 122 inches 177 to 309 cm (extra long axle)
Rear tread:	60 to 130 inches 152 to 330 cm (cast extra long axle)

John Deere 4620 Weight

John Deere 4620 Weight
Shipping:	12980 lbs 5887 kg
Operating:	14930 lbs 6772 kg
Ballasted:	18640 lbs 8455 kg

4620 Serial Numbers

4620 Serial Numbers Location:Serial number plate on the rear of the tractor, above the PTO shaft.
photo of 4620 serial number
1971:10001
1972:13692
Final:16967

how to read serial numbers...