The International Harvester 1256 is a 2WD or 4WD utility tractor manufactured by International Harvester in Rock Island, Illinois, USA from 1967 to 1969. The International 1256 is equipped with a 6.7 L (407.0 cu·in) six-cylinder diesel engine and one of two transmissions: a gear type transmission with 8 forward and 4 reverse gears or a partial power shift transmission with 16 forward and 8 reverse gears.
The IH 1256 utility tractor used the International Harvester DT407 engine. It is a 6.7 L, 6,669 cm2, (407.0 cu·in) six-cylinder turbocharged diesel engine with 110.0 mm (4.33 in) of the cylinder bore and 117.0 mm (4.61 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 114.6 PS (84.3 kW; 113.0 HP) at 2,400 rpm of PTO output power.
The International 1256 is equipped with power steering, independent hydraulic dry disc brakes, open operator station, or two-post ROPS, or cab with heat and air-conditioning (optional) and 159.0 liters (42 US gal.; 35 Imp. gal) fuel tank.
International Harvester 1256 Specifications
| General Specifications | |
| Model | International Harvester 1256 |
| Length | 4,160 mm (163.8 in) |
| Width | 2,330 mm (91.7 in) |
| Height | 2,180 mm (85.8 in) |
| Wheel base | 2,660 mm (104.7 in) |
| Weight | 4,720 kg (10,406 lbs) |
| Fuel tank capacity | 159.0 liters (42 US gal.; 35 Imp. gal) |
| Battery | Two 6V, CCA 204A |
| Cabin type | Open operator station or two-post ROPS or cab with heat and air-conditioning (optional ) |
| Engine | |
| Engine model | International Harvester DT407 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 6.7 L, 6,669 cm2, (407.0 cu·in) |
| Bore and stroke | 110.0 mm X 117.0 mm (4.33 in X 4.61 in) |
| Compression ratio | 17.0:1 |
| Horsepower | 114.6 PS (84.3 kW; 113.0 HP) at 2,400 rpm |
| Starter | Electric |
| Oil capacity: | 14.2 L (15 US. qt, 12.5 Imp. qt.) |
| Coolant capacity: | 22.7 L (24 US. qt, 20 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Independent hydraulic dry disc |
| Transmission model | – |
| Transmission type | Gear type |
| Gears | 8 forward and 4 reverse |
| Speed | Forward: 31.4 kmh (19.5 mph) Reverse: 15.3 (9.5 mph) |
| Transmission oil capacity | 64.4 L (17 US. gal, 14.2 Imp. gal.) |
| Transmission model | Torque Amplifier |
| Transmission type | Partial power shift |
| Gears | 16 forward and 8 reverse |
| Speed | Forward: 31.4 kmh (19.5 mph) Reverse: 15.3 (9.5 mph) |
| Transmission oil capacity | 64.4 L (17 US. gal, 14.2 Imp. gal.) |
| Tires | |
| Front tires | Ag: 10.00-16 |
| Rear tires | Ag: 18.4-38 |
| Three-Point Hitch | |
| Caterogy | III/II |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Valves | 1 |
| Pump flow | 8.0 gpm (30.3 lpm) |