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The John Deere 7820 is a 2WD or 4WD row-crop tractor from the 7020 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 2004 to 2007. The John Deere 7820 is equipped with an 8.1 L (496.0 cu·in) six-cylinder diesel engine and one of four transmission variants.
The JD 7820 row-crop tractor used the John Deere engine. It is a 8.1 L, 8,128 cm2, (496.0 cu·in) six-cylinder turbocharged diesel engine with 116.0 mm (4.57 in) of the cylinder bore and 129.0 mm (5.08 in) of the piston stroke. The compression ratio rating is 16.5:1. This engine produced 200.0 PS (146.9 kW; 197.0 HP) at 2,100 rpm of output power.
The John Deere 7820 is equipped with hydrostatic power steering, hydraulic wet disc brakes, cab (standard), and 391.7 liters (103.5 US gal.; 86.2 Imp. gal) fuel tank.
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John Deere 7820 Specifications
General Specifications | |
Model | John Deere 7820 |
Length | 5,380 mm (211.8 in) |
Width |
Short axle: 2,430 mm (95.7 in) Long axle: 2,990 mm (117.7 in) |
Height | Cab: 3,180 mm (125.2 in) |
Wheel base | 2,860 mm (112.6 in) |
Ground clearance (front axle) |
2WD: 650 mm (25.6 in) 4WD: 560 mm (22 in) |
Weight (shipping) |
2WD: 7,260 kg (16,006 lbs) 4WD: 7,760 kg (17,108 lbs) |
Fuel tank capacity |
391.7 liters (103.5 US gal.; 86.2 Imp. gal) With right step: 358.4 liters (94.7 US gal.; 78.8 Imp. gal) |
Battery | Two 12V, CCA 925A |
Cabin type | Cab (standard) |
Engine | |
Engine model | John Deere |
Engine type | Four-stroke, liquid-cooled, inline |
Cylinders | 6 |
Fuel type | Diesel |
Displacement | 8.1 L, 8,128 cm2, (496.0 cu·in) |
Bore and stroke | 116.0 mm X 129.0 mm (4.57 in X 5.08 in) |
Compression ratio | 16.5:1 |
Horsepower | 199.8 PS (146.9 kW; 197 HP) at 2,100 rpm |
Starter | Electric |
Oil capacity: | 24.0 L (25.4 US. qt, 21.1 Imp. qt.) |
Coolant capacity: | 32.0 L (33.8 US. qt, 28.2 Imp. qt.) |
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Transmission and chassis | |
Chassis | 4×2 2WD or 4×4 MFWD 4WD |
Steering type | Hydrostatic power |
Brakes | Hydraulic wet disc |
Transmission model | PowrQuad Plus |
Transmission type | Partial power shift |
Gears | 16 forward and 16 reverse |
Transmission model | PowrQuad Plus |
Transmission type | Partial power shift |
Gears | 20 forward and 20 reverse |
Speed | Forward: 41.1 kmh (25.5 mph) Reverse: (0 mph) |
Transmission model | AutoQuad Plus |
Transmission type | – |
Gears | 20 forward and 20 reverse |
Speed | Forward: 41.1 kmh (25.5 mph) Reverse: (0 mph) |
Transmission model | AutoPowr IVT |
Transmission type | Infinitely variable transmission |
Gears | Infinite forward and reverse |
Speed | Forward: 40.2 kmh (25 mph) Reverse: 40.2 (25 mph) |
Tires | |
Front tires | Ag: 11.00-16 |
Rear tires | Ag: 480/80R42 |
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Three-Point Hitch | |
Category | III/IIIN |
Control type | – |
Lift capacity (at ends) |
4,560 kg (10,050 lbs) Optional: 6,350 kg (14,000 lbs) |
PTO (Power take-off shaft) | |
Rear PTO type | Independent with hydraulic wet disc clutch |
Rear PTO speed | 540/1000, 1000 rpm |
Hydraulic system | |
Hydraulic type | Closed-center pressure-flow compensated (PFC) |
Hydraulic capacity | 107.9 L (28.5 US. gal, 23.7 Imp. gal.) |
Pressure | 3046 psi (210 bar) |
Valves | 7 |
Pump flow | 32.0 gpm (121.1 lpm) |
SCV flow | 30.0 gpm (113.6 lpm) |
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