John Deere 8400
Power
250 hp[P] hp
Production
1995-1999
Engine
Turbocharged aftercooled diesel, 6-cylinder 12-valve
Transmission
John Deere PowerShift
Drive
4WD
From the same series:
Introduction
John Deere 8400 Row-Crop Tractor
The John Deere 8400 is a row-crop tractor produced between 1995 and 1999 in Waterloo, Iowa. Designed for heavy-duty agricultural operations, this model integrates a high-capacity powertrain with advanced hydraulic systems, positioning it as a primary machine for large-scale farming enterprises.
Engine and Powertrain
The tractor is powered by a 6-cylinder, 12-valve turbocharged and aftercooled diesel engine with an 8.1 L displacement. It operates at a rated speed of 2200 RPM. Power is transmitted through a John Deere full PowerShift transmission offering 16 forward and 4 reverse gears, supported by a hydraulic wet disc clutch to ensure efficient power delivery under load.
Hydraulics and Hitch
The hydraulic system utilizes a closed-center pressure-flow compensated (PFC) design, delivering a flow of 30 gpm (113.6 lpm) at 2900 psi (200 bar). The rear hitch is a Category III/IIIN type featuring electro-hydraulic draft sensing, capable of a lift capacity of 11,700 lbs (5307 kg) to accommodate heavy implements.
Mechanical Configuration
The 8400 is configured with four-wheel drive and features inboard planetary final drives. Maneuverability is facilitated by power steering and an electro-hydraulic differential lock. Braking is provided by differential hydraulic wet disc brakes. The machine is equipped with the CommandView cab as standard, with optional Row-Trak guidance systems available for precision field work.
Conclusion
The John Deere 8400 provides a stable and powerful platform for demanding row-crop applications. Its combination of a high-torque 8.1 L engine, robust PowerShift transmission, and significant hydraulic capacity makes it a suitable choice for professional agricultural operations requiring consistent performance and durability.
Production Information of John Deere, 8400
- Row-Crop tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 8400
| Wheelbase | 116.1 inches [294 cm] |
|---|---|
| Rack and pinion rear axle | 4.331 by 118.5 inches [110 by 3009 mm] |
| Clearance (front axle) | 23.2 inches [58 cm] |
| Length | 206.5 inches [524 cm] |
| Front tread | 60 to 88 inches [152 to 223 cm] |
| Height (cab) | 120.2 inches [305 cm] |
| Standard tires (ag) | Front: 14.9R34. Rear: 18.4R46 |
|---|
Engine Specifications of John Deere, 8400
- John Deere
- Liquid-cooled inline
- Turbocharged aftercooled diesel
- 6-cylinder 12-valve
| Coolant capacity | 30 qts [28.4 L] |
|---|---|
| Displacement | 496 ci [8.1 L] |
| Rated RPM | 2200 |
| Bore/Stroke | 4.56x5.06 inches [116 x 129 mm] |
| Oil capacity | 29.6 qts [28.0 L] |
| Starter volts | 12 |
| Compression | 15.1:1 |
Transmission Information of John Deere, 8400
Transmission variants 1
| Transmission | John Deere PowerShift |
|---|---|
| Oil capacity | 148 qts [140.1 L] |
| Clutch | Hydraulic wet disc |
| Type | Full power shift |
| Gears | 16 forward and 4 reverse |
Mechanical Specs of John Deere, 8400
- Four-wheel drive
- Differential hydraulic wet disc brakes
- Power steering
- CommandView Cab standard. Row-Trak guidance optional.
| Final drives | Inboard planetary |
|---|---|
| Differential lock | Electro-hydraulic |
Power Information of John Deere, 8400
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 540 (1.375) |
| Rear PTO(optional) | 1000 (1.375) |
| Clutch | Hydraulic wet disc |
| Engine RPM | 540@1930 |
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of John Deere, 8400
| Type | Closed center pressure-flow compensated (PFC) |
|---|---|
| SCV flow | 30 gpm [113.6 lpm] |
| Valves | 3 to 5 |
| Capacity | 37 gal [140.0 L] |
| Pressure | 2900 psi [200.0 bar] |
Three-Point Hitch of John Deere, 8400
| Rear Type | III/IIIN |
|---|---|
| Rear Type(optional) | 15650 lbs [7098 kg] |
| Control | Electro-hydraulic draft sensing |
| Rear lift | 11700 lbs [5307 kg] |
Electrical System of John Deere, 8400
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 140 |
Where it sits
With 250 hp[P] HP, the John Deere 8400 sits between 8300 (222 HP) and 8410 (261 HP) in John Deere's range. Its power puts it in the 96th percentile of 1990s models in our database (2097 machines).
Frequently asked questions
How much horsepower does the John Deere 8400 have?
The John Deere 8400 delivers 250 hp[P] HP.
What years was the John Deere 8400 produced?
The John Deere 8400 was produced in 1995-1999.
What engine does the John Deere 8400 have?
The John Deere 8400 is powered by a Turbocharged aftercooled diesel, 6-cylinder 12-valve engine.
What transmission does the John Deere 8400 use?
The John Deere 8400 uses a John Deere PowerShift transmission.
Is the John Deere 8400 4WD?
The John Deere 8400 is available in 4WD.