All 106 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production
Manufacturer
John Deere
(no label)
Row-Crop tractor
(no label)
Built in Waterloo, Iowa, USA
Total built
7,894
Total built
1,666 (Powershift)
Total built
6,228 (Synchro range)
(no label)
Original price was $11,600 in 1972
(no label)
The 4520 was the first Deere tractor with a factory-installed turbocharger. Early versions suffered serious problems with the air cleaner and fuel injectors.
Engine
(no label)
John Deere 6.6L 6-cyl diesel
Transmission
(no label)
8-speed partially synchronized
(no label)
8-speed full power shift
Power
Drawbar (claimed)
107 hp | 79.8 kW
PTO (claimed)
120 hp | 89.5 kW
Drawbar (tested)
111.21 hp | 82.9 kW
PTO (tested)
123.39 hp | 92.0 kW
Mechanical
Drive
4x2 2WD
Drive
4x4 HFWD 4WD
Differential lock
hydraulic rear
(no label)
Power steering
(no label)
Differential hydraulic wet disc brakes
(no label)
Open operator station. Optional Roll-Gard ROPS. Optional cab with heater.
Capacity
Fuel
50 gal | 189.2 L
Hydraulic system
16 gal (PowerShift) | 60.6 L
Hydraulic system
18 gal (SyncroRange) | 68.1 L
Hydraulics
Type
closed center
Capacity
16 gal (PowerShift) | 60.6 L
Capacity
18 gal (SyncroRange) | 68.1 L
Pressure
2250 psi | 155.1 bar
Valves
1 to 3
Hitch
Rear Type
III/II
Pto
Rear PTO
independent
Clutch
dry disc (SyncroRange)
Clutch
wet disc (PowerShift)
Rear PTO Type
1000
Dimensions
Wheelbase
106.5 inches | 270 cm
Weight
12285 to 14175 pounds
Front tire
10.00-16
Rear tire
20.8-38
Electrical
Ground
negative
Charging system
alternator
Charging amps
55
Charging amps
72 (with A/C)
Batteries
2
Battery volts
6
Battery AH
172
Engine
Engine detail
(no label)
John Deere
(no label)
turbocharged diesel
(no label)
6-cylinder
(no label)
liquid-cooled inline
Displacement
404 ci | 6.6 L
Bore/Stroke
4.25x4.75 inches | 108 x 121 mm
Air cleaner
dry
Pre-heating
ether injection
Pre-heating
crankcase heater
Pre-heating
coolant heater
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
Coolant capacity (Coolant)
28 qts | 26.5 L
Intake valve clearance
0.018 inches | 0.457 mm
Exhaust valve clearance
0.022 inches | 0.559 mm
Engine oil
Oil capacity
14 qts | 13.2 L
Oil change
100 h
Transmission
Transmission options
(no label)
8-speed partially synchronized
(no label)
8-speed full power shift
Transmission
Transmission
John Deere Syncro-Range
Type
partially synchronized
Gears
8 forward and 2 reverse
Clutch
dry disc
Oil capacity
72 qts | 68.1 L
Oil type
John Deere 303
(no label)
Four shift stations with two gears each, plus reverse in the first two stations. Tractor must be stopped, and clutch used, to select one of the four shift stations. Shifting between gears in the station may be performed on the move by using the clutch.
Transmission
John Deere Power Shift
Type
full power shift
Gears
8 forward and 4 reverse
Clutch
wet disc
Oil capacity
64 qts | 60.6 L
Oil type
John Deere 303
(no label)
Clutchless shifting on the move between all gears. Inching pedal for precise movements.