John Deere 7820

Production ended · 4WD

PTO power · claimed

155 hp

Weight
17,230 lb
Engines
1 Diesel
Built
no record
Price new
no record

Power

Power specifications
Engine189.1 hp gross
Engine, maximum (boost)199.8 hp
PTO155 hp claimed
Drawbarno record
Listed power189 hp engine basis

Engines

Engines fitted to the John Deere 7820
John Deere 6.8L 6-cyl dieselDiesel · 6 cyl414 ci
Engine details
John Deere 6.8L 6-cyl diesel
Bore × stroke
4.19 in × 5 in
Rated speed
2,100 rpm
Rated power
189.1 hp
Torque
666 lb·ft at 1,400 rpm
Compression
17:1
Cooling
liquid-cooled
Firing order
1-5-3-6-2-4

Transmissions

Transmissions for the John Deere 7820
PowrQuad Pluspartial power shift20F / 20R
AutoQuad Plus20F / 20R
AutoPowr IVTinfinitely variable transmissioninfinite forward and reverse
Transmission notes

PowrQuad Plus: Four power shift gears (1-4) in five synchronized ranges (A-E) with left-hand power shuttle.

AutoQuad Plus: Four power shift gears (1-4) in five synchronized ranges (A-E) with left-hand power shuttle. AutoQuad allows for automatic load-based gear shifting.

Weight

Weight specifications
Weight17,230 lb operating
Shipping17,309 lb

Dimensions

Dimensions specifications
Wheelbase112.6 in
Length212.2 in
Width96 in
Height125.4 in
Front axle clearance22.3 in

Capacities

Capacities specifications
Fuel tank103.5 gal
Hydraulic system28.5 gal

Hydraulics

Hydraulics specifications
Systemclosed center pressure-flow compensating (PFC)
Pump flow32 gpm
Remote valve flow30 gpm
Pressure3,046 psi
Remote valves7

Hitch

Hitch specifications
Rear hitch category3/3N
Rear lift capacity10,050 lb
Front hitch categoryoptional

PTO

PTO specifications
Rear PTOindependent
Rear PTO speeds540/1000 (1.375)
Front PTOindependent
Front PTO speeds540/1000
Clutchhydraulic wet discs
Engine rpm at PTO speed540@1950

Chassis

Chassis specifications
Drive4WD
SteeringPower steering
BrakesHydraulic wet disc brakes
CabCab standard

Tires

Tires specifications
Front11.00-16
Rear480/80R42

Electrical

Electrical specifications
System voltage12 V
Batteries2
Cold cranking925 CCA
Chargingalternator
Charging output150 A
Groundnegative

Production

Production specifications
FactoriesWaterloo, Iowa, USA
Built byJohn Deere

Literature

  • 7020 Series Tractors John Deere, 2004