John Deere
John Deere 7820
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.
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) |
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