International Harvester 1256

Name: International Harvester 1256
Brand: International Harvester

Power

125 hp[P] hp

Production

1967-1969

Engine

Turbocharged diesel, 6-cylinder

Transmission

Gear

Drive

2WD/4WD

100–140 HP 1960s

From the same series:

856

Introduction

International Harvester 1256: The Powerhouse You Need!

Get ready to meet a true workhorse of the agricultural world! The International Harvester 1256, produced between 1967 and 1969, isn't just a tractor; it's a testament to robust engineering and unwavering performance. Built in Rock Island, Illinois, this machine was designed to tackle the toughest jobs with ease and reliability, cementing its place in farming history.

Unleash the Power: Engine and Performance

At the heart of the 1256 beats the formidable International Harvester DT407 engine. This 6-cylinder, turbocharged diesel powerhouse boasts a displacement of 406.9 cubic inches (6.7 L) and is liquid-cooled for optimal operation under demanding conditions. With a rated RPM of 2400, it delivers a strong 125 horsepower, ensuring you have the grunt needed for plowing, hauling, and everything in between. The engine's 17:1 compression ratio and dual dry element air cleaner speak to its durable design, ready to perform season after season.

Master Your Transmission: Gears and Control

Experience unparalleled control with the 1256's sophisticated transmission options. Choose between a straightforward 8-speed gear transmission or the advanced 16-speed partial power shift with Torque Amplifier (TA). The TA system allows for clutchless shifts in low and high ranges, dramatically enhancing operational flexibility and reducing operator fatigue. With up to 16 forward and 8 reverse gears, you'll always find the perfect ratio for maximum efficiency, whether you're navigating tight turns or cruising down the field.

Hydraulics and PTO: Ready for Any Implement

The 1256 is equipped with an open center hydraulic system, featuring a pump flow of 8 GPM (30.3 L/min). This robust system, coupled with one valve, ensures smooth and responsive operation for a wide array of implements. The independent rear PTO, available in 1000 RPM, means you can power demanding machinery without interruption, making this tractor a versatile partner for all your agricultural needs.

Built for the Operator: Comfort and Drive

Whether you opt for the open operator station with an optional two-post ROPS or the fully enclosed cab with heating and air conditioning, the 1256 prioritizes operator comfort. Power steering makes maneuvering effortless, while the independent hydraulic dry disc brakes provide reliable stopping power. Available in both two- and four-wheel drive configurations, this tractor offers the traction and stability needed for diverse terrains and tasks.

Dimensions and Durability: A Solid Foundation

With a substantial wheelbase of 105 inches (266 cm) for the Farmall configuration and a total length of 164 inches (416 cm), the 1256 offers excellent stability. Standard tires, like the 18.4-38 rears, provide a solid footing, while the overall width of 92 inches (233 cm) ensures a commanding presence on the field. This tractor isn't just powerful; it's built to last.

Conclusion

"The International Harvester 1256 stands as a monument to American agricultural engineering. Its powerful engine, versatile transmission, and operator-focused design make it a truly exceptional machine. Whether you're a collector, a farmer looking for a reliable powerhouse, or simply an enthusiast of classic farm machinery, the 1256 is a tractor that commands respect and delivers performance."

Introduction

Production Information of International Harvester, 1256

The production information of the tractor (1256) includes details about its manufacturing.

Original price was $10,700 in 1969

Standard-tread tractor

Built in Rock Island, Illinois, USA


Manufacturer	International Harvester

Dimension and Tires Information of International Harvester, 1256

This section sums up the dimension and tires information of the tractor.


Wheelbase	105 inches (Farmall) [266 cm]
Height (steering wheel)	86 inches [218 cm]
Width	92 inches [233 cm]
	92 inches (International) [233 cm]
Length	164 inches [416 cm]


Standard tires (ag)	Front: 10.00-16. Rear: 18.4-38 (Farmall)
	Front: 11.00-16. Rear: 24.5-32 (International)

Engine Specifications of International Harvester, 1256

Get the specifications for the engine and if different options are available.

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 International Harvester, 1256Y

Discover all variants of transmission available for this tractor model.

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 International Harvester, 1256Y

This section summarizes all mechanical information such as the brake system and other specifications.

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 International Harvester, 1256Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Rear PTO Type	1000
Engine RPM	1000@2100

Hydraulics Specifications of International Harvester, 1256

Hydraulic system type, pressure, pump flow and valves.


Type	Open center
Valves	1
Pump flow	8 gpm [30.3 lpm]

Three-Point Hitch of International Harvester, 1256

Hitch category and rear/front lift capacity.


Rear Type	III/II

Electrical System of International Harvester, 1256

Battery voltage, charging system and ground.


Charging system	Alternator
Battery AH	204
Battery volts	6
Charging amps	55
Batteries	2

Frequently asked questions

How much horsepower does the International Harvester 1256 have?

The International Harvester 1256 delivers 125 hp[P] HP.

What years was the International Harvester 1256 produced?

The International Harvester 1256 was produced in 1967-1969.

What engine does the International Harvester 1256 have?

The International Harvester 1256 is powered by a Turbocharged diesel, 6-cylinder engine.

What transmission does the International Harvester 1256 use?

The International Harvester 1256 uses a Gear transmission.

Is the International Harvester 1256 4WD?

The International Harvester 1256 is available in 2WD/4WD.

More International Harvester models

1206125 HP · 1965 - 1967 1255125 HP · 1979 - 1985 3688125 HP · 1981 - 1985 3488124 HP · 1981 - 1984 1026127 HP · 1970 - 1971 1246122 HP · 1972 - 1980 886B121 HP · 1981 - 1982 A-866121 HP · 1973 - 1978

View all 252 International Harvester models →

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