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John Deere 7820

John Deere 7820 tractor
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The John Deere 7820 is a row-crop tractor produced from 2004 to 2007 as part of the 7020 Series. It features a powerful 8.1L 6-cylinder turbocharged diesel engine delivering up to 199.8 hp gross power. The tractor offers multiple transmission options including 16-speed and 20-speed partial power shifts, an AutoQuad Plus, and an infinitely variable transmission (IVT) available with four-wheel drive. It is built in Waterloo, Iowa, USA, and includes features such as power steering, hydraulic wet disc brakes, and a standard cab. The 7820 supports a variety of tire options and has a robust hydraulic system with a 28.5-gallon capacity. It is designed for versatility and performance in row-crop farming applications.
John Deere 7820tractorspecificationsenginetransmissiondimensionshydraulicsfarm tractor
Power189 hp
Founded2004 - 2007
Model7820

Technical Specifications

Detailed specifications and technical data for John Deere 7820

Power

Engine (max):199.8 hp (149.0 kW)
Engine (net):182.4 hp (136.0 kW)
PTO (tested):174.31 hp (130.0 kW)
PTO (claimed):155 hp (115.6 kW)
Engine (gross):189.1 hp (141.0 kW)
Drawbar (tested):143.52 hp (107.0 kW)

Tires

Optional tires:Front: 14.9R30. Rear: 18.4R42 (4WD)
Standard tires (ag):Front: 11.00-16. Rear: 18.4R42 (2WD)

Engine

Type:turbocharged diesel
Cooling:liquid-cooled inline
Idle RPM:875-2200
Cylinders:6-cylinder
Rated RPM:2100
Bore/Stroke:4.56x5.06 inches (116 x 129 mm)
Compression:16.5:1
Displacement:496 ci (8.1 L)
Manufacturer:John Deere
Oil capacity:25.4 qts (24.0 L)
Starter volts:12
Coolant capacity:33.8 qts (32.0 L)
Rated Power (net):182.4 hp (136.0 kW)
Maximum Power (net):194.5 hp (145.0 kW)
Rated Power (gross):189.1 hp (141.0 kW)
Maximum Power (gross):199.8 hp (149.0 kW)

Weight

Operating:17,230 lbs (4WD AutoQuad) (7815 kg)
2WD Shipping:16,002 lbs (7258 kg)
4WD Shipping:17,102 lbs (7757 kg)
4WD IVT Shipping:17,603 lbs (7984 kg)

Capacity

Fuel:103.5 gal (391.7 L), 94.7 gal (with right step) (358.4 L)
Front axle:15.2 qts (14.4 L)
Front hubs:2 qts (1.9 L)
HD Front hubs:4 qts (3.8 L)
Hydraulic system:28.5 gal (107.9 L)

Features

Cab:standard
Drive:Two- or four-wheel drive
Brakes:Hydraulic wet disc brakes
Steering:Power steering

Dimensions

Length:212.2 inches (538 cm)
Wheelbase:112.6 inches (286 cm)
Height (cab):125.4 inches (318 cm)
Rear axle options:3.622 by 96 inches (91 by 2438 mm),3.622 by 110.5 inches (91 by 2806 mm),3.622 by 118 inches (91 by 2997 mm),3.937 by 96 inches (99 by 2438 mm),3.937 by 110.5 inches (99 by 2806 mm),3.937 by 118 inches (99 by 2997 mm)
Width (long axle):118 inches (299 cm)
Width (short axle):96 inches (243 cm)
2WD Clearance (drawbar):16.7 inches (42 cm)
4WD Clearance (drawbar):16.3 inches (41 cm)
Length with front weights:240.4 inches (610 cm)
2WD Clearance (front axle):25.6 inches (65 cm)
4WD Clearance (front axle):22.3 inches (56 cm)

Electrical

Ground:negative
Batteries:2
Battery CCA:925
Battery volts:12
Charging amps:150
Charging system:alternator

Hydraulics

Type:closed-center pressure-flow compensated (PFC)
Valves:7
Capacity:28.5 gal (107.9 L)
Pressure:3046 psi (210.0 bar)
SCV flow:30 gpm (113.6 lpm)
Pump flow:32.2 gpm (121.9 lpm)

Production

Type:Row-Crop tractor
Series:7020 Series
Built in:Waterloo, Iowa, USA
Years produced:2004 - 2007

Transmission

AutoPowr IVT:infinitely variable transmission, infinite forward and reverse gears, hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever, knob on speed lever adjusts set speeds for two ranges, minimum speed 50 meters per hour (164 feet per hour), available only with four-wheel drive
AutoQuad Plus:20 forward and reverse gears, hydraulic wet discs clutch, four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser, power shuttle shifting between forward and reverse, automatic load-matched gear shifting with standard and economy-shift settings
Transmission options:16-speed partial power shift, 20-speed, infinitely variable transmission
PowrQuad Plus (16-speed):partial power shift, hydraulic wet discs clutch, four power-shift gears (1-4) in four synchronized ranges (A-D) with left-hand reverser, power shuttle shifting between forward and reverse
PowrQuad Plus (20-speed):hydraulic wet discs clutch, four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser, power shuttle shifting between forward and reverse

Tractor hitch

Rear Type:3/3N
Rear lift:10050 lbs (4558 kg), 14000 lbs Optional (6350 kg)

Power Take-off (PTO)

Clutch:hydraulic wet discs
Rear PTO:independent
Front PTO:independent Optional
Engine RPM:540@1950, 1000@1950, 540E@1750, 1000E@1750
Rear PTO Type:540/1000 (1.375), 1000 (1.75)
Front PTO Type:1000 (1.75)