Farmall 1256
Power
125 hp[P] hp
Production
1967-1969
Engine
Turbocharged diesel, 6-cylinder
Transmission
Gear
Drive
2WD/4WD
From the same series:
Introduction
International Harvester 1256 Standard-Tread Tractor
The International Harvester 1256 is a standard-tread tractor produced between 1967 and 1969 at the company's facility in Rock Island, Illinois. Positioned within the manufacturer's lineup, it served as a robust agricultural power unit, bridging the gap between the 1206 and 1456 models.
Engine and Performance
The tractor is powered by the International Harvester DT407, a 6.7-liter, 6-cylinder turbocharged diesel engine. It reaches a rated speed of 2400 RPM and delivers 125 horsepower. The engine utilizes a liquid-cooling system and a dual dry-element air cleaner to maintain performance under heavy agricultural workloads.
Transmission and Drivetrain
Two transmission configurations were available: a standard 8-speed gear transmission and an optional 16-speed partial power shift featuring the 'Torque Amplifier'. The Torque Amplifier allows for clutchless shifting from direct drive to a lower speed range, providing improved versatility when managing varying load conditions.
Hydraulics and PTO
The 1256 is equipped with an open-center hydraulic system featuring a pump flow of 8 gpm (30.3 lpm) and a single valve arrangement. The independent rear PTO operates at 1000 RPM at a rated engine speed of 2100 RPM, allowing for the consistent operation of power-driven implements.
Operator Station and Mechanical Features
The machine features power steering and independent hydraulic dry disc brakes to assist with maneuverability and stopping power. The operator station is open by design, with options for a two-post ROPS or a fully enclosed cab equipped with heating and air conditioning for increased operator comfort.
Conclusion
With its 125-horsepower engine and flexible transmission options, the International Harvester 1256 was designed for demanding field tasks, offering a balance of mechanical durability and operator-focused features suitable for large-scale agricultural operations of its era.
Production Information of Farmall, 1256
- Original price was $10,700 in 1969
- Standard-tread tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | Farmall (a part of International Harvester) |
|---|
Dimension and Tires Information of Farmall, 1256
| Wheelbase | 105 inches (Farmall) [266 cm] |
|---|---|
| Height (steering wheel) | 86 inches [218 cm] |
| Width | 92 inches [233 cm] |
| Width(optional) | 92 inches (International) [233 cm] |
| Length | 164 inches [416 cm] |
| Standard tires (ag) | Front: 10.00-16. Rear: 18.4-38 (Farmall) |
|---|---|
| Standard tires (ag)(optional) | Front: 11.00-16. Rear: 24.5-32 (International) |
Engine Specifications of Farmall, 1256
- International Harvester DT407
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Oil capacity | 15 qts [14.2 L] |
|---|---|
| Displacement | 406.9 ci [6.7 L] |
| Compression | 17:1 |
| Bore/Stroke | 4.321x4.625 inches [110 x 117 mm] |
| Coolant capacity | 24 qts [22.7 L] |
| Starter volts | 12 |
| Rated RPM | 2400 |
| Air cleaner | Dual dry elements |
Transmission Information of Farmall, 1256
Transmission variants 1
- The 1256's transmission provides four gears (1-4) in high, low, and reverse ranges.
| Type | Gear |
|---|---|
| Gears | 8 forward and 4 reverse |
| Oil capacity | 68 qts [64.4 L] |
Transmission variants 2
- Four gears (1-4) in two ranges (low/high) plus reverse range. The Torque Amplifier (TA) allows a clutchless shift from direct drive (DD) to the lower TA speed in all gears and ranges.
| Transmission | Torque Amplifier |
|---|---|
| Oil capacity | 68 qts [64.4 L] |
| Type | Partial power shift |
| Gears | 16 forward and 8 reverse |
- 8-speed gear
- 16-speed partial power shift
Mechanical Specs of Farmall, 1256
- Two- or four-wheel drive
- Open operator station. Two-post ROPS optional. Cab optional with heat and air-conditioning.
- Power steering
- Independent hydraulic dry disc brakes
Power Information of Farmall, 1256
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
| Engine RPM | 1000@2100 |
Hydraulics Specifications of Farmall, 1256
| Type | Open center |
|---|---|
| Valves | 1 |
| Pump flow | 8 gpm [30.3 lpm] |
Three-Point Hitch of Farmall, 1256
| Rear Type | III/II |
|---|
Electrical System of Farmall, 1256
| Charging system | Alternator |
|---|---|
| Battery AH | 204 |
| Battery volts | 6 |
| Charging amps | 55 |
| Batteries | 2 |
Where it sits
With 125 hp[P] HP, the Farmall 1256 sits just below 1456 (144 HP) in Farmall's range. Its power puts it in the 92th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the Farmall 1256 have?
The Farmall 1256 delivers 125 hp[P] HP.
What years was the Farmall 1256 produced?
The Farmall 1256 was produced in 1967-1969.
What engine does the Farmall 1256 have?
The Farmall 1256 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Farmall 1256 use?
The Farmall 1256 uses a Gear transmission.
Is the Farmall 1256 4WD?
The Farmall 1256 is available in 2WD/4WD.