The John Deere 8400R is a 4WD row-crop tractor from the 8R series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 2016 to 2019. The JD 8400R is equipped with a 9.0 L (548.0 cu·in) six-cylinder diesel engine and a full power shift transmission with 23 forward and 11 reverse gears.
The John Deere 8400R row-crop tractor used the John Deere PowerTech PSS engine. It is a 9.0 L, 8,980 cm2, (548.0 cu·in) six-cylinder turbocharged aftercooled diesel engine with 118.0 mm (4.65 in) of the cylinder bore and 136.0 mm (5.35 in) of the piston stroke. The compression ratio rating is 16.0:1. This engine produced 405.7 PS (298.3 kW; 400.0 HP) at 2,100 rpm of output power.
The JD 8400R is equipped with hydrostatic power or active command steering (optional), hydraulic wet disc brakes, CommandView III cab (standard), and 645.0 liters (170.4 US gal.; 141.9 Imp. gal) fuel tank.
John Deere 8400R Specifications
| General Specifications | |
| Model | John Deere 8400R |
| Length | 6,220 mm (244.9 in) |
| Width (woth warning lamp) | 3,480 mm (137 in) |
| Height | 3,280 mm (129.1 in) |
| Wheel base | – |
| Ground clearance | Front axle: 580 mm (22.8 in) Rear axle: 630 mm (24.8 in) |
| Weight | 14,830 kg (32,695 lbs) |
| Fuel tank capacity | 645.0 liters (170.4 US gal.; 142.0 Imp. gal) G49 chassis: 685.8 liters (181.2 US gal.; 152.0 Imp. gal) |
| Battery | Two 12V, CCA 925A |
| Cabin type | CommandView III cab (standard) |
| Engine | |
| Engine model | John Deere PowerTech PSS |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 9.0 L, 8,980 cm2, (548.0 cu·in) |
| Bore and stroke | 118.0 mm X 136.0 mm (4.65 in X 5.35 in) |
| Compression ratio | 16.0:1 |
| Horsepower | 405.7 PS (298.3 kW; 400.0 HP) at 2,100 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×4 MFWD 4WD |
| Steering type | Hydrostatic power or Active Command steering (optional) |
| Brakes | Hydraulic wet disc |
| Final drive | Inboard planetary |
| Differential lock | Hydraulic rear standard |
| Transmission model | John Deere e23 |
| Transmission type | Full power shift |
| Gears | 23 forward and 11 reverse |
| Tires | |
| Front tires | Ag: 380/80R38 |
| Rear tires | Ag: 480/80R50 |
| Three-Point Hitch | |
| Category | IVN/III |
| Rear Arms | Hydraulic center link (optional) |
| Lift capacity (at ends) | 6,800 kg (15,000 lbs) 9,000 kg (20,000 lbs) – optional |
| Front Hitch | Optional |
| Front lift (at ends) | 5,195 kg (11,450 lbs) |
| Drawbar | Cat 4 Cat 4 Heavy-Duty (optional) |
| PTO (Power take-off shaft) | |
| Front PTO type | Independent (optional) |
| Front PTO speed | 1,000 rpm (1.75) or 1,000 rpm (1.375) |
| Rear PTO type | Independent |
| Rear PTO speed | 1000 (1.75), 1000/1000E (1.75) – (optional), 540/1000 (1.375) – (optional) |
| Hydraulic system | |
| Hydraulic type | Closed-center load sensing pressure flow compensated |
| Hydraulic capacity | 40.1 L (10.6 US. gal, 8.8 Imp. gal.) Optional: 90.1 liters (23.8 US gal, 19.8 Imp. gal) |
| Valves | Rear valves: 4 to 6 Front valve: 0 to 2 |
| Pump flow | 60.0 gpm (227.1 lpm) 85.0 gpm (321.8 lpm) – optional |
| SCV flow | 35.0 gpm (132.5 lpm) 42.0 gpm (159.0 lpm) – optional |
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