John Deere 7800

Last Updated: July 2024

Overview

The John Deere 7800 is a row-crop tractor manufactured in Waterloo, Iowa, USA, between 1992 and 1996. It is available in both 2WD and 4WD configurations, with a six-cylinder, 466 cubic inch, turbocharged diesel engine that offers 170 horsepower at 2100 RPM. The JD 7800 features a choice of two transmissions: a partial power shift with 16 forward and 12 reverse gears or a full power shift with 19 forward and 7 reverse gears. It includes a ComfortGard cab with air conditioning, differential hydraulic wet disc brakes, and a closed center hydraulic system. The impressive lift capacity, ComfortGard cab, and powerful engine make the 7800 suitable for a variety of row-crop tasks.

Key Specifications

Category: Row Crop

Power Output: 170

Fuel Type: Diesel

Lift Capacity: Standard: 8,930 lbs, Optional: 10,050 lbs

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John Deere 7800 Tractor

John Deere 7800 vs. Similar Tractors

Power Output

Average

Greater than 63% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: -
Cylinders: 6
Displacement (ci): 466
Bore (in): 4.57
Stroke (in): 4.76
Rated RPM: 2100
Power Output (hp): 170

Transmission

Type: -
Forward Gears: -
Reverse Gears: -
Total Gears: -

Dimensions

Length (in): 187
Width (in): -
Height (in): 118.4
Operating Weight (lb): -

Power Take-Off (PTO)

PTO Type: Independent
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): 1000
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: Power
Coolant Capacity (qts): -
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: 1996
Hitch Type: -
Hitch Category: Category 3
Hitch Position: -
Hitch Capacity (lb): Standard: 8,930 lbs, Optional: 10,050 lbs
Operator Station Type: ComfortGard cab standard with air-conditioning
Starter Type: Electric
Brake Type: Differential hydraulic wet disc
Hydraulic System Type: Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1, 1993

Maximum Power and Fuel Consumption

Maximum Power: 150.23 HP (112.06 kW) at 2200 rpm
Fuel Consumption at Maximum Power: 9.72 Gal/hr (36.78 l/h) with a fuel efficiency of 0.406 lb/hp.hr (0.247 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed (8th Gear): 125.35 HP (93.47 kW) with a drawbar pull of 9187 lbs (40.88 kN) and a speed of 5.83 mph (9.38 km/h)
Fuel Consumption at Rated Speed: 0.418 lb/hp.hr (0.255 kg/kW.h) with a fuel efficiency of 16.13 Hp.hr/gal (3.18 kW.h/l)

Torque and Engine Performance

Maximum Torque: 465 lb.-ft. (630 Nm) at 1500 rpm
Torque Rise: 30.0% with a power increase at 2200 rpm of 17.5%

Hydraulic Performance

Maximum Hydraulic Output: Not provided in the test results.
Pump Delivery Rate: 29.5 GPM (111.7 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 45.5 HP (33.9 kW) at delivery pressure of 2900 psi (200 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (540 rpm): 14.76 Hp.hr/gal (2.90 kW.h/l)
Fuel Consumption: 9.01 Gal/hr (34.11 l/h) at 2079 rpm

Nebraska Tractor Test Lab.(1993). Test 1668: John Deere 7800 Power quad Diesel 16-Speed. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1977