John Deere 8020
Power
215 hp
Production
1961-1964
Engine
Diesel, 6-cylinder
Transmission
Gear
Weight
26350 lbs [11952 kg]
Drive
4WD
From the same series:
Introduction
John Deere 8020 Four-Wheel Drive Tractor
The John Deere 8020 is a heavy-duty four-wheel drive tractor produced between 1961 and 1964 in Waterloo, Iowa. Developed as a direct response to technical challenges encountered with the preceding 8010 model, the 8020 incorporated a redesigned transmission and served as a specialized machine for demanding agricultural and industrial operations.
Engine and Powertrain
The tractor is powered by a liquid-cooled, 6-cylinder inline diesel engine with a displacement of 425 cubic inches (7.0 liters). It delivers a rated power of 215 hp at 2100 RPM, with a claimed drawbar power of 150 hp. The engine features a 17:1 compression ratio and relies on a 24-volt electrical system for its starter and charging needs.
Transmission and Chassis
The 8020 utilizes a gear-type transmission providing 8 forward and 2 reverse speeds. Its mechanical configuration includes articulated power steering, which enhances maneuverability for a machine of this size, and planetary final drives. Braking is managed by pneumatic drum brakes, ensuring reliable stopping power for the tractor's substantial mass.
Hydraulics and Dimensions
The hydraulic system features a 25-gallon (94.6 L) capacity and a standard pump flow of 40 GPM (151.4 lpm), with an optional configuration capable of reaching 60 GPM (227.1 lpm). In terms of dimensions, the tractor has a wheelbase of 120 inches and an overall length of 238 inches. The base operating weight is 19,700 lbs, which can be increased to a ballasted weight of 26,350 lbs for improved traction.
Conclusion
The John Deere 8020 represents a significant period in agricultural engineering, characterized by the transition of many 8010 units into this improved 8020 configuration. With its high power-to-weight ratio and articulated design, it remains a notable example of early 1960s high-horsepower four-wheel drive technology intended for large-scale land cultivation.
Production Information of John Deere, 8020
- The 8020 was introduced after problems occurred with the 8010. The 8020s were model 8010 tractors rebuilt with a new transmission.
- Four-wheel Drive (4WD) tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|---|
| Total built | 85 |
Out of 100 built, records show 85 model 8010 tractors rebuilt into 8020s. At least one original 8010 is known to survive. It is unknown what happened to the other 14.
Dimension and Tires Information of John Deere, 8020
| Ballasted weight | 26350 lbs [11952 kg] |
|---|---|
| Wheelbase | 120 inches [304 cm] |
| Height (exhaust) | 112.5 inches [285 cm] |
| Height (steering wheel) | 99 inches [251 cm] |
| Length | 238 inches [604 cm] |
| Weight | 19700 lbs [8935 kg] |
| Width | 96 inches [243 cm] |
| Ag front | 23.1-26 |
|---|---|
| Industrial rear | 18.00x25 |
| Ag rear | 23.1-26 |
| Industrial front | 18.00x25 |
Engine Specifications of John Deere, 8020
- Liquid-cooled inline
- Diesel
- 6-cylinder
| Starter volts | 24 |
|---|---|
| Displacement | 425 ci [7.0 L] |
| Compression | 17:1 |
| Bore/Stroke | 4.25x5.00 inches [108 x 127 mm] |
| Coolant capacity | 48 qts [45.4 L] |
| Oil capacity | 18 qts [17.0 L] |
| Starter | Electric |
| Rated RPM | 2100 |
| Power | 215 hp [160.3 kW] |
Transmission Information of John Deere, 8020
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 8 forward and 2 reverse |
Mechanical Specs of John Deere, 8020
- Four-wheel drive
- Open operator station.
- Pneumatic drum brakes
- Articulated power steering
| Final drives | Planetary |
|---|
Power Information of John Deere, 8020
| Engine | 215 hp [160.3 kW] |
|---|---|
| Drawbar (claimed) | 150 hp [111.9 kW] |
Hydraulics Specifications of John Deere, 8020
| Capacity | 25 gal [94.6 L] |
|---|---|
| Pump flow | 40 gpm [151.4 lpm] |
| Pump flow(optional) | 60 gpm [227.1 lpm] |
Electrical System of John Deere, 8020
| Charging system | Generator |
|---|---|
| Charging volts | 24 |
Where it sits
With 215 HP, the John Deere 8020 sits just below WA-14 (225 HP) in John Deere's range. Its power puts it in the 98th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the John Deere 8020 have?
The John Deere 8020 delivers 215 HP.
What years was the John Deere 8020 produced?
The John Deere 8020 was produced in 1961-1964.
What engine does the John Deere 8020 have?
The John Deere 8020 is powered by a Diesel, 6-cylinder engine.
What transmission does the John Deere 8020 use?
The John Deere 8020 uses a Gear transmission.
How much does the John Deere 8020 weigh?
The John Deere 8020 weighs 26350 lbs [11952 kg].
Is the John Deere 8020 4WD?
The John Deere 8020 is available in 4WD.