John Deere 7800
Power
170 hp
Production
1992-1996
Engine
Turbocharged diesel, 6-cylinder
Transmission
John Deere PowrQuad
Weight
15,560 lbs (4WD) [7058 kg]
Drive
2WD/4WD
From the same series:
Introduction
John Deere 7800: Row-Crop Tractor (1992-1996)
The John Deere 7800 is a row-crop tractor manufactured in Waterloo, Iowa, between 1992 and 1996. Positioned as a high-performance machine for intensive agricultural operations, it features a robust 6-cylinder diesel engine and advanced transmission options designed for versatility in field work.
Engine and Performance
The tractor is powered by a 7.6-liter (466 ci) liquid-cooled, turbocharged 6-cylinder diesel engine. It generates a net rated power of 170 hp (126.8 kW) at a rated speed of 2100 RPM. The engine utilizes a compression ratio of 15.5:1 and is supported by a dual dry element air cleaner, ensuring efficient operation under demanding conditions.
Transmission and Drivetrain
Operators can choose between two transmission systems: the John Deere PowrQuad, a partial power shift transmission offering 16 forward and 12 reverse gears, or the full power shift John Deere PowerShift transmission with 19 forward and 7 reverse gears. Both systems utilize a wet disc clutch. The tractor is available in two-wheel drive or four-wheel drive configurations, featuring inboard planetary final drives and an electro-hydraulic rear differential lock.
Hydraulics and Hitch
The hydraulic system is a closed-center type with a total capacity of 22.9 gallons (86.7 L) and operates at a pressure of 2900 psi (200 bar). It provides an SCV flow of 25.4 gpm (96.1 lpm) across 2 to 3 valves. The rear hitch is a Category IIIN/II type, equipped with position and draft control, capable of lifting up to 8,925 lbs (4,048 kg), with an optional capacity of 10,050 lbs (4,558 kg) available on four-wheel drive models.
Operator Environment and Dimensions
The ComfortGard cab comes as standard, featuring integrated air-conditioning to maintain operator comfort. Mechanically, the unit is equipped with power steering and differential hydraulic wet disc brakes. The tractor measures 187.2 inches in length, with a wheelbase of 114.4 inches for 2WD models and 110.2 inches for 4WD models. The operating weight reaches 15,560 lbs (7,058 kg) for the 4WD version.
Conclusion
The John Deere 7800 serves as a capable, mid-nineties heavy-duty row-crop tractor. Its combination of high-capacity hydraulics, multiple transmission options, and robust engine performance makes it suitable for professional farming operations requiring consistent power and reliability.
Production Information of John Deere, 7800
- Original price was $84,000 in 1996
- Row-Crop tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 7800
| Rear tread | 60 to 100.3 inches [152 to 254 cm] |
|---|---|
| 2WD Wheelbase | 114.4 inches [290 cm] |
| Shipping weight | 13,910 lbs [6309 kg] |
| Height (cab) | 118.4 inches [300 cm] |
| 4WD Wheelbase | 110.2 inches [279 cm] |
| Rack-and-pinion rear axle | 3.62 by 110.5 inches [91 by 2806 mm] |
| Operating weight | 15,560 lbs (4WD) [7058 kg] |
| Length | 187.2 inches [475 cm] |
| Rear tread | 60 to 108.3 inches [152 to 275 cm] |
| Rear tread | 60 to 85.7 inches [152 to 217 cm] |
| Rack-and-pinion rear axle | 3.62 by 118 inches [91 by 2997 mm] |
| Rack-and-pinion rear axle | 3.62 by 96 inches [91 by 2438 mm] |
Engine Specifications of John Deere, 7800
- John Deere
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Firing order | 1-5-3-6-2-4 |
|---|---|
| Displacement | 466 ci [7.6 L] |
| Air cleaner | Dual dry element |
| Bore/Stroke | 4.5625x4.75 inches [116 x 121 mm] |
| Coolant capacity | 27.5 qts [26.0 L] |
| Starter volts | 12 |
| Rated RPM | 2100 |
| Compression | 15.5:1 |
| Rated Power (net) | 170 hp [126.8 kW] |
Transmission Information of John Deere, 7800
Transmission variants 1
- The PowrQuad was the standard transmission on the Deere 7800. It consists of four speeds (1-4) in four ranges (A-D).
| Transmission | John Deere PowrQuad |
|---|---|
| Clutch | Wet disc |
| Type | Partial power shift |
| Gears | 16 forward and 12 reverse |
Transmission variants 2
| Transmission | John Deere PowerShift |
|---|---|
| Clutch | Wet disc |
| Type | Full power shift |
| Gears | 19 forward and 7 reverse |
- 16-speed partial power shift
- 19-speed full power shift
Mechanical Specs of John Deere, 7800
- Two- or four-wheel drive
- Differential hydraulic wet disc brakes
- Power steering
- ComfortGard cab standard with air-conditioning.
| Final drives | Inboard planetary |
|---|---|
| Differential lock | Electro-hydraulic rear |
Power Information of John Deere, 7800
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of John Deere, 7800
| Type | Closed center |
|---|---|
| SCV flow | 25.4 gpm [96.1 lpm] |
| Valves | 2 to 3 |
| Capacity | 22.9 gal [86.7 L] |
| Pressure | 2900 psi [200.0 bar] |
Three-Point Hitch of John Deere, 7800
| Rear Type | IIIN/II |
|---|---|
| Rear Type(optional) | 10050 lbs [4558 kg] |
| Control | Position and draft control |
| Rear lift | 8925 lbs [4048 kg] |
Optional with four-wheel drive.
Electrical System of John Deere, 7800
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 140 |
Where it sits
With 170 HP, the John Deere 7800 sits between 4455 (156 HP) and 7810 (175 HP) in John Deere's range. Its power puts it in the 88th percentile of 1990s models in our database (2097 machines).
Frequently asked questions
How much horsepower does the John Deere 7800 have?
The John Deere 7800 delivers 170 HP.
What years was the John Deere 7800 produced?
The John Deere 7800 was produced in 1992-1996.
What engine does the John Deere 7800 have?
The John Deere 7800 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the John Deere 7800 use?
The John Deere 7800 uses a John Deere PowrQuad transmission.
How much does the John Deere 7800 weigh?
The John Deere 7800 weighs 15,560 lbs (4WD) [7058 kg].
Is the John Deere 7800 4WD?
The John Deere 7800 is available in 2WD/4WD.