John Deere 9520R

Last Updated: July 2024

Overview

The John Deere 9520R is a high-powered tractor designed for heavy-duty farming tasks and offers robust performance. With its 6-cylinder vertical, 13.5 L (826 ci) John Deere PSS engine featuring two turbochargers, air-to-air aftercooler, and D.E.F. exhaust treatment, the tractor ensures steady and powerful operation with 520 horsepower and the capability to reach up to 572 horsepower under certain conditions. The engine produces a maximum torque of 1241 lb-ft at 1550 rpm with a torque rise of 52.0% and power increase of 12.5% at 1599 rpm. Additionally, the tractor utilizes a selective gear fixed ratio transmission with full range operator-controlled power shift, permitting smooth transition and efficient power delivery across a wide range of speeds. The liquid-cooled engine sports an electronic injection induction system and maintains optimal temperatures with a coolant capacity of 67.1 quarts and a variable speed fan controlled by three thermostats. The tractor's structure is built for durability, with a wheelbase of 137.8 inches and an operating weight of 47,555 pounds (with operator, unballasted), supporting enhanced stability and load-bearing. The exhaust system features a DOC, SCR, and regenerative DPF integrated into a vertical muffler.

Key Specifications

Power Output: 520

Transmission: Selective gear fixed ratio with full range operator-controlled power shift

Operating Weight: 47555 (with operator, unballasted)

Fuel Type: No. 2 Diesel

Technical Specifications

Engine

Manufacturer: John Deere
Model: PSS
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: No. 2 Diesel
Induction Type: Electronic injection
Cylinders: 6 (Six-cylinder vertical)
Displacement (ci): 826
Bore (in): 5.197
Stroke (in): 6.496
Rated RPM: 2100
Power Output (hp): 520

Transmission

Type: Selective gear fixed ratio with full range operator-controlled power shift
Forward Gears: 18
Reverse Gears: 6
Total Gears: -

Dimensions

Length (in): 319.5
Width (in): 193
Height (in): -
Operating Weight (lb): 47555 (with operator, unballasted)

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: -
Coolant Capacity (qts): 67.1
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: -
Hitch Type: IV/IVN Opt
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric
Brake Type: -
Hydraulic System Type: Closed-center pressure/flow compensated

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 27 to May 5, 2015

Maximum Power and Fuel Consumption

Maximum Power: 367.32 HP (273.91 kW) at 1599 rpm
Fuel Consumption at Maximum Power: 19.84 Gal/hr (75.09 l/h) with a fuel efficiency of 0.380 lb/hp.hr (0.231 kg/kW.h)
DEF Consumption: 0.34 Gal/hr (1.29 l/h)

Drawbar Performance

Power at Rated Engine Speed (7th Gear): 415.60 HP (309.91 kW) with a drawbar pull of 32449 lbs (144.34 kN) and a speed of 4.80 mph (7.72 km/h)
Fuel Consumption at Rated Speed: 0.441 lb/hp.hr (0.268 kg/kW.h) with a fuel efficiency of 15.94 Hp.hr/gal (3.14 kW.h/l)

Torque and Engine Performance

Maximum Torque: 1241 lb.-ft. (1683 Nm) at 1550 rpm
Torque Rise: 52.0% with a power increase at 1599 rpm of 12.5%

Hydraulic Performance

Maximum Force Exerted: 20997 lbs (93.4 kN) at hitch points
Pump Delivery Rate: 57.2 GPM (216.4 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 79.9 HP (59.5 kW) at delivery pressure of 2371 psi (163 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 17.36 Hp.hr/gal (3.42 kW.h/l)
Fuel Consumption: 20.81 Gal/hr (78.77 l/h) at 1895 rpm

NTTL.(2015).Nebraska Tractor Test 2111 for John Deere 9520R Diesel. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from http://digitalcommons.unl.edu/tractormuseumlit/2543