John Deere 8320
Power
263 hp
Production
2002-2005
Transmission
John Deere PowerShift
Drive
4WD
From the same series:
Introduction
John Deere 8320 Row-Crop Tractor
The John Deere 8320 is a row-crop tractor produced between 2002 and 2005 at the Waterloo, Iowa, facility. It belongs to the 8000 series, positioned as a high-capacity machine designed for demanding agricultural operations.
Engine and Powertrain
The tractor is powered by an 8.1-liter, liquid-cooled inline engine featuring an electronic high-pressure common rail fuel system. It delivers a rated power of 263 gross horsepower at 2200 RPM, with a maximum gross power reaching 268 horsepower. The engine is paired with a full power shift transmission providing 16 forward and 4 reverse gears, utilizing a hydraulic wet disc clutch for durability.
Hydraulics and PTO
The hydraulic system utilizes a closed-center, pressure-flow compensated (PFC) design, offering a standard flow of 33.5 gallons per minute, with an optional 42.5 gallons per minute pump available. The system operates at a pressure of 2900 psi. An independent rear PTO is provided, supporting 540 and 1000 RPM operation, managed by hydraulic wet discs.
Mechanical and Dimensions
Built with a standard cab configuration, the tractor features four-wheel drive and hydrostatic power steering. The chassis sits on a 116.9-inch wheelbase, with front axle options including standard MFWD or the Independent Link Suspension (ILS) system. The rear is equipped with a category III/IIIN hitch, capable of lifting up to 13,730 pounds.
Conclusion
The John Deere 8320 is engineered for heavy-duty field work and high-output agricultural tasks. Its combination of a high-torque engine, advanced power shift transmission, and robust hydraulic capacity makes it suitable for intensive row-crop farming and large-scale implement management.
Production Information of John Deere, 8320
- Row-Crop tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 8320
| 4WD Front tread | 60 to 80 inches [152 to 203 cm] |
|---|---|
| Wheelbase | 116.9 inches (4WD) [296 cm] |
| Wheelbase(optional) | 211.9 inches (long frame) [538 cm] |
| Length | 209.9 inches [533 cm] |
| Length(optional) | 115.7 inches (ILS) [293 cm] |
| Front axle | MFWD ILS |
| Height (cab) | 120.2 inches [305 cm] |
| Height (cab)(optional) | 118.9 inches (long frame) [302 cm] |
| ILS Front tread | 60 to 88 inches [152 to 223 cm] |
| Rack-and-pinion rear axle | 4.724 by 118.5 inches [119 by 3009 mm] |
| Rack-and-pinion rear axle | 4.331 by 118.5 inches [110 by 3009 mm] |
| Front axle | MFWD |
| Ag front | 16.9R30 |
|---|---|
| Ag rear | 18.4R46 |
Engine Specifications of John Deere, 8320
- Liquid-cooled inline
| Operating RPM | 1500-2200 |
|---|---|
| Idle RPM | 900-2300 |
| Rated Power (gross) | 263 hp [196.1 kW] |
| Starter volts | 12 |
| Maximum Power (gross) | 268 hp [199.8 kW] |
| Fuel system | Electronic high-pressure common rail (HPCR) |
| Maximum Power (net) | 275 hp [205.1 kW] |
| Displacement | 496 ci [8.1 L] |
| Rated Power (net) | 250 hp [186.4 kW] |
| Oil capacity | 26.4 qts [25.0 L] |
| Oil change | 250 h |
| Bore/Stroke | 4.56x5.06 inches [116 x 129 mm] |
| Rated RPM | 2200 |
| Coolant capacity | 35.9 qts [34.0 L] |
| Compression | 16.5:1 |
| Air cleaner | Dry with secondary element |
Transmission Information of John Deere, 8320
Transmission variants 1
- Full power shift transmission with single shift lever with display on cab corner post. Tractor begins in 7 (forward) and 2 (reverse) on start up. Clutch pedal may be used to pre-select a gear by holding clutch and pressing lever until desired gear is reached. Automatic PowerShift (APS) allows automated shifting to match load.
| Transmission | John Deere PowerShift |
|---|---|
| Oil capacity | 148 qts [140.1 L] |
| Clutch | Hydraulic wet disc |
| Type | Full power shift |
| Type(optional) | 158.4 qts (ILS) [149.9 L] |
| Gears | 16 forward and 4 reverse |
Mechanical Specs of John Deere, 8320
- Four-wheel drive
- Cab standard.
- Hydraulic wet disc brakes
| Steering | Hydrostatic power |
|---|
Power Information of John Deere, 8320
| Rear PTO | Independent |
|---|---|
| Engine RPM | 540@1975 |
| Engine RPM(optional) | 540/1000 (1.375 optional) |
| Clutch | Hydraulic wet discs |
| Clutch(optional) | 1000@2200 |
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of John Deere, 8320
| Total flow | 33.5 gpm [126.8 lpm] |
|---|---|
| Type | Closed center pressure-flow compensated (PFC) |
| Valves | 5 |
| Pressure | 2900 psi [200.0 bar] |
| Capacity | 37 gal [140.0 L] |
| Capacity(optional) | 42.5 gpm [160.9 lpm] |
| SCV flow | 30 gpm [113.6 lpm] |
| SCV flow(optional) | 39.6 gal (ILS) [149.9 L] |
With standard 45cc pump
Optional 57cc pump
Three-Point Hitch of John Deere, 8320
| Rear Type | III/IIIN |
|---|---|
| Front lift | 11000 lbs [4989 kg] |
| Front Hitch(optional) | IIIN |
| Rear lift | 13730 lbs [6227 kg] |
| Rear lift(optional) | 15180 lbs [6885 kg] |
Electrical System of John Deere, 8320
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 150 |
Where it sits
With 263 HP, the John Deere 8320 sits between 8220 (233 HP) and 8330 (275 HP) in John Deere's range. Its power puts it in the 92th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 8320 have?
The John Deere 8320 delivers 263 HP.
What years was the John Deere 8320 produced?
The John Deere 8320 was produced in 2002-2005.
What transmission does the John Deere 8320 use?
The John Deere 8320 uses a John Deere PowerShift transmission.
Is the John Deere 8320 4WD?
The John Deere 8320 is available in 4WD.