The John Deere 8400, produced from 1995 to 1996, is a highly regarded row-crop tractor known for its exceptional performance and reliability. Manufactured by John Deere in Waterloo, Iowa, USA, it has earned a strong reputation among farmers and operators for its versatility and power. With a turbocharged diesel engine, advanced transmission, and a range of hydraulic capabilities, it’s well-equipped to handle a variety of agricultural tasks. The tractor is also designed with operator comfort in mind, featuring a CommandView Cab as the standard configuration. Overall, the John Deere 8400 remains a trusted workhorse in the world of agriculture.
| Production:1995 to 1996: |
|---|
| Manufacturer | John Deere |
| Type | Row-Crop Tractor |
| Factory | Waterloo, Iowa, USA |
| Power |
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| PTO (Claimed) | 225 hp (167.8 kW) |
| Drawbar (Tested) | 202.28 hp (150.8 kW) |
| PTO (Tested) | 252.21 hp (188.1 kW) |
| Engine Detail |
|---|
| Manufacturer | John Deere |
| Engine Type | Turbocharged aftercooled diesel |
| Cylinders | 6-cylinder, 12-valve |
| Cooling | Liquid-cooled inline |
| Displacement | 496 ci (8.1 L) |
| Bore/Stroke | 4.56×5.06 inches (116 x 129 mm) |
| Compression Ratio | 15.1:1 |
| Rated RPM | 2200 |
| Starter Volts | 12 |
| Oil Capacity | 29.6 qts (28.0 L) |
| Coolant Capacity | 30 qts (28.4 L) |
| Transmission |
|---|
| Transmission Type | John Deere PowerShift |
| Type | Full power shift |
| Gears | 16 forward and 4 reverse |
| Clutch | Hydraulic wet disc |
| Oil Capacity | 148 qts (140.1 L) |
| Mechanical |
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| Chassis | 4×4 MFWD 4WD |
| Final Drives | Inboard planetary |
| Differential Lock | Electro-hydraulic |
| Steering | Power |
| Brakes | Differential hydraulic wet disc |
| Cab | CommandView Cab standard, Row-Trak guidance optional |
| Capacity |
|---|
| Fuel | 135 gal (511.0 L) |
| Hydraulic System | 37 gal (140.0 L) |
| Front Hubs | 3.2 qts (3.0 L each) |
| Front Diff. | 11.5 qts (10.9 L) |
| Hydraulics |
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| Type | Closed-center pressure-flow compensated (PFC) |
| Capacity | 37 gal (140.0 L) |
| Pressure | 2900 psi (200.0 bar) |
| Valves | 3 to 5 |
| SCV Flow | 30 gpm (113.6 lpm) |
| Tractor Hitch |
|---|
| Rear Type | 3/3N |
| Control | Electro-hydraulic draft sensing |
| Rear Lift | 11,700 lbs (5307 kg) or 15,650 lbs (7098 kg *) |
| Power Take-off (PTO) |
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| Rear PTO | Independent |
| Rear RPM | 1000 (1.75) or 540/1000 (1.375 optional) |
| Serial Numbers |
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| 1995 | 1001 |
| 1996 | 6001 |
| 1997 | 10001 |
| 1998 | 20001 |
| 1999 | 24001 |
| Electrical |
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| Ground | Negative |
| Charging System | Alternator |
| Charging Amps | 140 |
| Batteries | 2 |
| Battery CCA | 925 |
| Battery Volts | 12 |
| Standard Tires (Agricultural): |
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| Front | 14.9R34 |
| Rear | 18.4R46 |
| Dimensions |
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| Wheelbase | 116.1 inches (294 cm) |
| Length | 206.5 inches (524 cm) |
| Height (Cab) | 120.2 inches (305 cm) |
| Clearance (Front Axle) | 23.2 inches (58 cm) |
| Rear Axle | Rack and pinion, 4.331 by 118.5 inches (110 by 3009 mm) |
| Front Tread | 60 to 88 inches (152 to 223 cm) |
| Weight |
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| Shipping | 18,709 lbs (8,486 kg) |
| Operating | 19,190 lbs (8,704 kg) |
| Ballasted | 29,562 lbs (13,409 kg) |
John Deere 8400 Overview
The John Deere 8400 is a prominent member of the 8000/8000T Series and is celebrated for its exceptional performance in the field of row-crop farming. Manufactured at John Deere’s esteemed facility in Waterloo, Iowa, USA, this tractor represents a combination of power, efficiency, and reliability. It has been a trusted choice among farmers and operators for its ability to handle a wide range of agricultural tasks with ease.
Key Features:
Powerful Engine: The heart of the 8400 is a turbocharged aftercooled diesel engine, featuring six cylinders and 12 valves. This liquid-cooled inline engine offers an impressive displacement of 496 cubic inches (8.1 liters) and a robust compression ratio of 15.1:1. With a rated RPM of 2200, it delivers the necessary power and torque for demanding farming operations.
Transmission Excellence: The John Deere PowerShift transmission with 16 forward and 4 reverse gears ensures smooth and efficient power transfer. The hydraulic wet disc clutch enhances reliability and control during gear shifts.
Mechanical Prowess: The tractor’s mechanical components are designed for durability and performance. It boasts a 4×4 MFWD (Four-Wheel Drive) system with inboard planetary final drives for optimal traction. The electro-hydraulic differential lock enhances stability, and the power steering ensures precise maneuverability.
Operator Comfort: The CommandView Cab, provided as standard, offers a comfortable and ergonomic workspace for operators. Additionally, the option for Row-Trak guidance further enhances precision in row-crop farming.
Advantages:
The John Deere 8400’s 225 horsepower PTO rating and robust engine make it capable of handling demanding row-crop tasks, such as planting, harvesting, and tillage.
The PowerShift transmission offers versatility and ease of use, ensuring operators can select the right gear for various applications.
The tractor’s four-wheel-drive capability and hydraulic components contribute to its adaptability in different field conditions.
Disadvantages:
While the 8400 is a powerful tractor, its fuel consumption can be relatively high, especially during heavy-duty operations, which may affect operational costs.
Due to its size and weight, maneuvering in confined spaces or smaller fields can be challenging.
Common Issues:
Common maintenance concerns for the John Deere 8400 include hydraulic system checks for leaks, particularly in older models. Additionally, sourcing replacement parts, especially for older tractors, can sometimes be challenging, depending on availability in specific markets.
In conclusion, the John Deere 8400 stands as a reliable and capable row-crop tractor with a legacy of performance. Its powerful engine, advanced transmission, and operator-focused features have made it a preferred choice for row-crop farmers seeking to optimize their agricultural operations.
