The AGCO AGCOSTAR 8425 is a 4WD farm tractor manufactured by the AGCO in Coldwater, Ohio, USA from 1995 to 2001. The AGCO 8425 is equipped with the Cummins N14 (14.0 L) or Detroit Diesel (12.7 L) diesel engine and selective gear fixed-ratio transmission with 18 forward and 2 reverse gears.
The AGCOSTAR 8425 farm tractor used 14 L, 14,013 cm2, (855.13 cu·in) Cummins N14 six-cylinders turbocharged diesel engine with 140 mm (5.51 in) of the cylinder bore and 152 mm (5.98 in) of the piston stroke. The Detroit Diesel six-cylinders turbocharged diesel engine with 12.7 liters of displacement was available through 1998, starting in 1999, only the Cummins N14 was available. Both engines produced 431 PS (316.9 kW; 425 HP) at 2100 rpm of maximum output power.
The AGCO AGCOSTAR 8425 is equipped with hydrostatic power steering, hydraulic disc brakes, cabin with heat and air conditioning.
AGCO AGCOSTAR 8425 Specifications
| General Specifications | |
| Model | AGCO AGCOSTAR 8425 |
| Length | – |
| Width | – |
| Height | – |
| Wheel base | 3,480 mm (137 in) |
| Weight | 16,380 kg (36,110 lbs) |
| Fuel tank capacity | – |
| Battery | – |
| Cabin type | Cabin with heat and air conditioning |
| Engine | |
| Engine model | Cummins N14 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 14 L, 14,013 cm2, (855 cu·in) |
| Bore and stroke | 140 mm X 152 mm (5.51 in X 5.98 in) |
| Compression ratio | 16.5:1 |
| Horsepower | 431 PS (316.9 kW; 425 HP) at 2,100 rpm |
| Torque | – |
| Starter | Electric |
| Oil type | 15W-40 CE, CD |
| Oil capacity: | 34.0 L (35.93 US. qt, 29.92 Imp. qt.) |
| Engine | |
| Engine model | Detroit Diesel |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 12.7 L, 12,680 cm2, (774 cu·in) |
| Bore and stroke | 0 mm X 0 mm (0 in X 0 in) |
| Horsepower | 431 PS (316.9 kW; 425 HP) at 0 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×4 4WD |
| Steering type | Hydrostatic power |
| Brakes | Hydraulic disc |
| Final drive | – |
| Transmission model | Eaton Fuller |
| Transmission type | Selective gear fixed ratio |
| Gears | 18 forward and 2 reverse |
| Speed | Forward: 39.5 kmh (24.5 mph) Reverse: 7.6 (4.7 mph) |
| Tires | |
| Front tires | – |
| Rear tires | – |
| Hydraulic system | |
| Hydraulic type | Closed center |
| Pressure | – |
| Valves | 4 or 5 |
| Pump flow | 35 gpm (132.5 lpm) |
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