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Years in Production / 2004–2007
John Deere
7820
Explore the specifications, hardware, and original references for the John Deere 7820.
189hp
Source index power
MFWD Optional
Drive
2004–2007
Production years
John Deere
Manufacturer
7820 / 01
At a glance
Overview
2004 - 2007
7020 Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Waterloo, Iowa, USA
- Manufacturer
- John Deere
Mechanical
Two- or four-wheel drive
Power steering
Hydraulic wet disc brakes
Cab standard.
Capacity
- Fuel
- 103.5 gal391.7 L
- Fuel
- 94.7 gal (with right step)358.4 L
- Hydraulic System
- 28.5 gal107.9 L
- Front Axle
- 15.2 qts14.4 L
- Front Hubs
- 2 qts1.9 L
- Hd Front Hubs
- 4 qts3.8 L
Hydraulics
- Type
- closed-center pressure-flow compensated (PFC)
- Capacity
- 28.5 gal107.9 L
- Pressure
- 3046 psi210.0 bar
- Valves
- 7
- Pump Flow
- 32.2 gpm121.9 lpm
- Scv Flow
- 30 gpm113.6 lpm
Hitch
- Rear Type
- 3/3N
- Rear Lift
- 10050 lbs4558 kg
- Rear Lift
- 14000 lbsOptOptional6350 kg
Pto
- Rear Pto
- independent
- Clutch
- hydraulic wet discs
- Rear Type
- 540/1000 (1.375)
- Rear Type
- 1000 (1.75)
- Engine Rpm
- 540@1950
- Engine Rpm
- 1000@1950
- Engine Rpm
- 540E@1750
- Engine Rpm
- 1000E@1750
- Front Pto
- independent OptOptional
- Front Pto Type
- 1000 (1.75)
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 150
- Batteries
- 2
- Battery Cca
- 925
- Battery Volts
- 12
7820 / 02
Under the hood
Engine Detail
John Deere
turbocharged diesel
6-cylinder
liquid-cooled inline
- Displacement
- 496 ci8.1 L
- Bore Stroke
- 4.56x5.06 inches116 x 129 mm
- Rated Power Net
- 182.4 hp136.0 kW
- Rated Power Gross
- 189.1 hp141.0 kW
- Maximum Power Net
- 194.5 hp145.0 kW
- Maximum Power Gross
- 199.8 hp149.0 kW
- Compression Ratio
- 16.5:1
- Rated Rpm
- 2100
- Idle Rpm
- 875-2200
- Starter Volts
- 12
- Oil Capacity
- 25.4 qts24.0 L
- Coolant Capacity
- 33.8 qts32.0 L
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
John Deere 8.1L 6-cyl diesel
7820 / 03
Gears & controls
Transmission (Option 1)
Four power-shift gears (1-4) in four synchronized ranges (A-D) with left-hand reverser. Power shuttle shifting between forward and reverse.
- Transmission
- PowrQuad Plus
- Transmission Type
- partial power shift
- Gears
- 16 forward and reverse
- Clutch
- hydraulic wet discs
Transmission (Option 2)
Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse.
- Transmission
- PowrQuad Plus
- Gears
- 20 forward and reverse
- Clutch
- hydraulic wet discs
- Speeds Description
- With Group 46 rear tires. Reverse speeds are about 4% faster than corresponding forward speed.
Transmission (Option 3)
Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse. AutoQuad mode offers automatic load-matched gear shifting with standard and economy-shift settings.
- Transmission
- AutoQuad Plus
- Gears
- 20 forward and reverse
- Clutch
- hydraulic wet discs
- Speeds Description
- With Group 46 rear tires. Reverse speeds are about 4% faster than corresponding forward speed.
Transmission (Option 4)
Hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever. Knob on the speed lever adjusts the set speeds for two ranges. Minimum speed of 50 meters per hour (164 feet per hour). The IVT was available on the 7820 only when equipped with four-wheel drive.
- Transmission
- AutoPowr IVT
- Transmission Type
- infinitely variable transmission
- Gears
- infinite forward and reverse
Transmission Options
16-speed partial power shift
20-speed
infinitely variable transmission
7820 / 04
Size. Stance. Footprint.
Dimensions And Tires
- Wheelbase
- 112.6 inches286 cm
- Weight
- 16002 to 17603 pounds
- Front Tire
- 11.00-16
- Rear Tire
- 18.4R422WD
Serial Number Location
On tractor frame, front right-hand side.
Tires And Tracks
- Standard Tires Ag
- Front: 11.00-16. Rear: 18.4R422WD
- Standard Tires Ag
- Front: 14.9R30. Rear: 18.4R424WD
See it in action
Videos
Watch John Deere 7820 videos from their original YouTube creators.
7820 / 06
Tests (NTTL)
Oced Tractor Test1834
496 diesel AutoQuad-Plus 4WDMarch 31 - April 21, 2004Link: OCED Tractor Test 1834 file
PTO performance
Drawbar performance
- Max Power
- 174.31 hp130.0 kW
- Max Power
- 143.52 hp107.0 kW
- Fuel Use
- 9.6 gal/hour36.3 l/hour
- Fuel Use
- 9.4 gal/hour35.6 l/hour
- Fuel Use
- 9.5 gal/hour36.0 l/hour
- Power At Rated Engine Speed
- 156.55 hp116.7 kW
- Power At Rated Pto Speed
- 170.96 hp127.5 kW
- Max Pull
- 21,634 lbs9813 kg