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International Harvester 1256

International Harvester 1256 tractor
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The International Harvester 1256 is a standard-tread tractor produced from 1967 to 1969. It was built in Rock Island, Illinois, USA, and originally priced at $10,700 in 1969. The tractor features a turbocharged 6-cylinder 6.7L diesel engine, with a power output of approximately 111.6 to 125.6 hp (estimated). It offers two transmission options: an 8-speed gear and a 16-speed partial power shift with Torque Amplifier. The 1256 supports two- or four-wheel drive, power steering, and independent hydraulic dry disc brakes. The operator station is open, with optional two-post ROPS or cab with heat and air-conditioning. Hydraulics are open center with 1 valve and 8 gpm pump flow. The tractor hitch is category III/II with an independent 1000 RPM rear PTO. Dimensions vary slightly between Farmall and International versions, with wheelbases of 105 inches and 92 inches respectively. Weight ranges from 9940 to 11030 pounds. Electrical system includes a 55 amp alternator and two 6-volt batteries. The 1256 is related to models 1456, 856, and 1206.
International Harvester 1256IH 1256Farmall 1256tractor specsenginetransmissiondimensionspowerhydraulicsfarm tractor
Power125 hp[P]
Founded1967 - 1969
Model1256

Technical Specifications

Detailed specifications and technical data for International Harvester 1256

Power

PTO (tested):116.12 hp (86.6 kW)
PTO (claimed):113 hp (84.3 kW)
Drawbar (tested):102.03 hp (76.1 kW)

Engine

Type:turbocharged diesel
Model:International Harvester DT407
Cooling:liquid-cooled
Cylinders:6-cylinder
Fuel tank:42 gal (159.0 L)
Rated RPM:2400
Air cleaner:dual dry elements
Bore/Stroke:4.321x4.625 inches (110 x 117 mm)
Compression:17:1
Displacement:406.9 ci (6.7 L)
Oil capacity:15 qts (14.2 L)
Starter volts:12
Coolant capacity:24 qts (22.7 L)

Variants

IH 1256:standard
Farmall 1256:row-crop

Electrical

Batteries:2
Battery AH:204
Battery volts:6
Charging amps:55
Charging system:alternator

Hydraulics

Type:open center
Valves:1
Pump flow:8 gpm (30.3 lpm)

Mechanical

Drive:Two- or four-wheel drive
Brakes:Independent hydraulic dry disc brakes
Steering:Power steering
Operator station:Open operator station. Two-post ROPS optional. Cab optional with heat and air-conditioning.

Production

Type:Standard-tread tractor
Built in:Rock Island, Illinois, USA
Manufacturer:International Harvester
Original price:$10,700 in 1969

Transmission

Type:gear
Gears:8 forward and 4 reverse
Description:The 1256's transmission provides four gears (1-4) in high, low, and reverse ranges.
Oil capacity:68 qts (64.4 L)

Torque Amplifier

Type:partial power shift
Gears:16 forward and 8 reverse
Description: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.
Oil capacity:68 qts (64.4 L)
Transmission options:8-speed gear, 16-speed partial power shift

Tractor hitch

Rear Type:III/II

Serial Numbers

1967 IH:7501
1968 IH:7703
1969 IH:8444
Location:Serial number place on the left side of the 1256, on the clutch housing.
1967 Farmall:7501
1968 Farmall:8849
1969 Farmall:13140

Dimensions & Tires

Width:92 inches (233 cm)
Length:164 inches (416 cm)
Weight:9940 to 11030 pounds
Rear tire:18.4-38 (Farmall), 24.5-32 (International)
Wheelbase:105 inches (Farmall) (266 cm), 92 inches (International) (233 cm)
Front tire:10.00-16 (Farmall), 11.00-16 (International)
Shipping weight:9940 lbs (Farmall) (4508 kg), 11030 lbs (International) (5003 kg)
Ballasted weight:13810 lbs (6264 kg)
Operating weight:10405 lbs (4719 kg)
Height (steering wheel):86 inches (218 cm)

Power Take-off (PTO)

Rear PTO:independent
Engine RPM:1000@2100
Rear PTO Type:1000

Related Models

International Harvester 1456

Model:1456

International Harvester 856

Model:856

International Harvester 1206

Model:1206