John Deere 4520

Last Updated: July 2024

Overview

The John Deere 4520 is a versatile row-crop tractor powered by a 4-cylinder, 149 cubic inch turbocharged diesel engine delivering a maximum power output of 55.94 horsepower. It features a hydrostatic transmission with infinitely variable forward and reverse gears. The tractor has a power steering system and a Category II hitch. The independent test results provide detailed specifications for the engine, transmission, hydraulic system, PTO performance, sound levels, and operating parameters. The tractor's operating weight is 3,860 pounds, and its dimensions are 170.5 inches in length, 95.7 inches in width, and 105.9 inches in height. Additional features include optional ROPS, cab with heater, and a John Deere 158 loader.

Key Specifications

Category: Row Crop

Power Output: 55.94

Transmission: Hydrostatic

Drive Type: 4WD

Operating Weight: 3,860

Fuel Type: Diesel

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John Deere 4520 Tractor

John Deere 4520 vs. Similar Tractors

Power Output

Average

Greater than 43% of similar tractors.

Operating Weight

Poor

Greater than 9% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: John Deere
Cooling Type: Liquid-cooled
Cylinder Orientation: Vertical
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 4
Displacement (ci): 149
Bore (in): 3.386
Stroke (in): 4.134
Rated RPM: -
Power Output (hp): 55.94

Transmission

Type: Hydrostatic
Forward Gears: Infinitely variable
Reverse Gears: Infinitely variable
Total Gears: -

Dimensions

Length (in): 170.5
Width (in): 95.7
Height (in): 105.9
Operating Weight (lb): 3,860

Power Take-Off (PTO)

PTO Type: Independent Rear PTO
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: 4WD
Steering Type: Power
Coolant Capacity (qts): 28
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: 1970
Hitch Type: -
Hitch Category: II
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Open operator station; Cab (optional)
Starter Type: Electric
Brake Type: Differential hydraulic wet disc
Hydraulic System Type: Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 20-22, 2009

Maximum Power and Fuel Consumption

Rated Engine Speed (PTO speed—541 rpm):
Power: 54.55 HP (40.68 kW) at 2401 rpm
Fuel Consumption: 3.79 Gal/hr (14.36 l/h)
Fuel Efficiency: 0.490 lb/hp.hr (0.298 kg/kW.h)
Power Efficiency: 14.38 Hp.hr/gal (2.83 kW.h/l)
Maximum Power:
Power: 55.94 HP (41.71 kW) at 2200 rpm
Fuel Consumption: 3.78 Gal/hr (14.32 l/h)
Fuel Efficiency: 0.477 lb/hp.hr (0.290 kg/kW.h)
Power Efficiency: 14.79 Hp.hr/gal (2.91 kW.h/l)

Drawbar Performance

Maximum Torque: 157 lb.-ft. (213 Nm) at 1802 rpm
Torque Rise: 31.5%

Hydraulic Performance

Maximum Force Exerted: 2523 lbs (11.2 kN)
Pump Delivery Rate at Minimum Pressure and Rated Engine Speed: 11.3 GPM (42.8 l/min)
Pump Delivery Rate at Maximum Hydraulic Power:
Delivery Pressure: 2250 psi (155 bar)
Power: 14.2 HP (10.6 kW)
Flow Rate: 10.8 GPM (40.9 l/min)

Sound Levels

Sound Level Without Cab:
No load in B range at 4.7 mph (7.5 km/h), engine at 2600 rpm: 86.7 dB(A)
No load in B range at 4.7 mph (7.5 km/h), engine at 1760 rpm: 83.3 dB(A)
Transport speed, no load in C range: 87.1 dB(A)
Bystander in C range: 79.9 dB(A)

NTTL.(2009).Test 1945: John Deere 4520 S/N 65001 and higher. University of Nebraska, Lincoln: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2354