| Manufacturer | John Deere |
| Price | - |
| Model | 8400R |
| Equipment Type | Row-Crop Tractors |
| Factory | Waterloo, Iowa, USA |
OCED TRACTOR TEST 2172 2
| Description | Diesel e23 4WD April 4 - 21, 2017 Link: OCED Tractor Test 2172 file PTO performance Drawbar performance Gear 10 used for power test Gear 8 used for pull test |
| Max power | 320.19hp / 238.8kW |
| Fuel use | 18.7gal/hour / 70.8l/hour |
| Power at rated engine speed | 338.29hp / 252.3kW |
| Power at rated PTO speed | 362.26hp / 270.1kW |
| Max pull | 29545lbs / 13401kg |
JOHN DEERE 8400R POWER
| Engine (gross) | 400hp / 298.3kW |
| Drawbar (tested) | 320.19hp / 238.8kW |
| PTO (tested) | 367.80hp / 274.3kW |
ENGINE DETAIL
The John Deere 8400R features a robust 9.0L PowerTech PSS diesel engine offering 400hp at 2100 RPM, providing high efficiency and excellent torque for demanding agricultural tasks. Its Tier 4 emissions compliance with selective catalyst reduction ensures adherence to environmental regulations, albeit potentially increasing maintenance costs due to additional systems. The electronic high-pressure common rail fuel system enhances fuel atomization and combustion efficiency, promoting lower consumption and emissions—ideal for both performance-driven farming operations and sustainability goals.
| Description | John Deere PowerTech PSS turbocharged aftercooled diesel 6-cylinder liquid-cooled |
| Displacement | 548ci / 9.0L |
| Bore/Stroke | 4.66x5.35inches / 118x 136mm |
| Emissions | Tier 4 |
| Emission control | selective catalyst reduction |
| Rated Power (EC 97/98) | 400hp / 298.3kW |
| Fuel system | electronic high-pressure common rail |
| Compression | 16:1 |
| Rated RPM | 2100 |
| Starter | electric |
| Starter volts | 12 |
JOHN DEERE 8400R ENGINE
The John Deere 8400R, equipped with a robust 9.0L 6-cylinder diesel engine, delivers high torque performance, ideal for heavy-duty applications like tillage and planting. Its advanced fuel efficiency can reduce operational costs, but the complexity of its emissions control system may require more maintenance. Overall, this tractor excels in large-scale farming operations, providing reliability and power for demanding tasks.
| Description | John Deere 9.0L 6-cyl diesel |
TRANSMISSION
The John Deere 8400R’s e23 full power shift transmission offers 23 forward and 11 reverse gears, allowing for optimized power delivery and improved fuel efficiency during various field operations. This high gear count ensures enhanced adaptability to a wide range of tasks, from plowing to transport, though it may present a learning curve for operators unfamiliar with multi-gear systems. Additionally, the full power shift mechanism minimizes torque loss, maintaining productivity and performance in demanding agricultural scenarios.
| Transmission | John Deere e23 |
| Type | full power shift |
| Gears | 23 forward and 11 reverse |
MECHANICAL
The John Deere 8400R features a robust 4x4 MFWD chassis and inboard planetary final drives, enhancing traction and stability in various terrains. The advanced hydrostatic power steering paired with Active Command steering provides exceptional maneuverability, while the hydraulic wet disc brakes ensure effective stopping power, essential for heavy towing scenarios. With a 23-speed full power shift transmission and AutoTrac ready capabilities, it optimally balances power and efficiency for demanding agricultural applications.
| Chassis | 4x4 MFWD 4WD |
| Final drives | inboard planetary |
| Differential lock | hydraulic rear standard hydraulic front with 1500 and ILS axles |
| Steering | hydrostatic power Active Command steering optional |
| Brakes | hydraulic wet disc |
| Trailer brakes | hydraulic (optional) / dual line air (optional) |
| Cab | CommandView III cab standard with air-conditioning. AutoTrac ready JDLink ServiceADVISOR Remote |
| Transmission | 23-speed full power shift |
CAPACITY
| Fuel | 170.4gal / 645.0L 181.2gal / 685.8L (G49 chassis) |
| Exhaust fluid (DEF) | 6.8gal / 25.7L |
| Hydraulic system | 10.6gal / 40.1L 23.8gal / 90.1L (optional) |
HYDRAULICS
| Type | closed-center load sensing pressure flow compensated |
| Capacity | 10.6gal / 40.1L 23.8gal / 90.1L (optional) |
| Rear valves | 4 to 6 |
| Front valves | 0 to 2 |
| Pump flow | 60gpm / 227.1lpm 85gpm / 321.7lpm (optional) |
| SCV flow | 35gpm / 132.5lpm 42gpm / 159.0lpm (optional) |
TRACTOR HITCH
| Rear Type | IVN/III |
| Rear lift | 15000lbs / 6804kg 20000lbs / 9072kg (optional) |
| Rear Arms | hydraulic center link optional |
| Front Hitch | optional |
| Front lift (at ends) | 11450lbs / 5193kg |
| Drawbar | Cat 4/Cat 4 Heavy-Duty optional |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 (1.75)/1000 / 1000E (1.75 optional)/540/1000 (1.375 optional) |
| Front PTO | optional independent |
| Front RPM | 1000 (1.75) / 1000 (1.375) |
JOHN DEERE 8400R TIRES
The John Deere 8400R's standard agricultural tires, with a front size of 380/80R38 and rear size of 480/80R50, provide enhanced traction and stability for heavy-duty tasks, especially in field operations requiring high torque. The larger rear tires improve load distribution, reducing soil compaction while optimizing fuel efficiency. However, the tire dimensions may limit maneuverability in tight spaces or on uneven terrain, necessitating careful consideration for specific agricultural applications.
| Standard tires (ag) | Front: 380/80R38. Rear: 480/80R50 |
DIMENSIONS
| Wheelbase | 120.1inches / 305cm |
| Length | 245inches / 622cm 259.5inches / 659cm (with front weights) |
| Width | 137.3inches / 348cm (warning lamps) 175.1inches / 444cm (triples warning lamps) |
| Height (cab) | 129.3inches / 328cm |
| Clearance (front axle) | 23.1inches / 58cm *1500 axle Group 42 tires 19.7inches / 50cm *ILS axle Group 42 tire |
| Clearance (rear axle) | 24.9inches / 63cm *With Group 47 tires |
| Front axle | ILS 50 KPH |
| Rear axle | 4.724 by 118.5inches / 119by 3009mm |
| Front tread | 62 to 88inches / 157to 223cm |
JOHN DEERE 8400R WEIGHT
| 32691lbs / 14828kg (IVT, duals, Cat 4 hitch) | |
| Max capacity | 39683lbs / 18000kg |
| Max front axle | 17637lbs / 8000kg |
| Max rear axle | 25353lbs / 11500kg |
DIMENSIONS & TIRES
The John Deere 8400R features a wheelbase of 120.1 inches (305 cm), providing enhanced stability during operation, especially in field conditions. Weighing 32,691 lbs (14,828 kg), it offers significant traction but may limit maneuverability in tight spaces. The combination of front tires (380/80R38) and rear tires (480/80R50) allows for optimal power transfer and flotation, making it suitable for heavy-duty tasks on varied terrains.
| Wheelbase | 120.1inches / 305cm |
| Weight | 32691lbs / 14828kg |
| Front tire | 380/80R38 |
| Rear tire | 480/80R50 |
8400R SERIAL NUMBERS
| Location | Serial number plate on the front-right of the tractor frame, above the front axle |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 240 |
| Batteries | 2 |
| Battery CCA | 925 (each) |
| Battery volts | 12 |