Tractor · 1967Unverified
International Harvester 1256
International Harvester 1256 — Standard-tread tractor · 116 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
116 hp
Max power
76.1 kW
Weight
9940 to 11030 pounds
Hover a source tag to verify
Overview
ManufacturerInternational HarvesterReference
Standard-tread tractorReference
Built in Rock Island, Illinois, USAReference
Original price was $10,700 in 1969Reference
Two- or four-wheel driveReference
Power steeringReference
Independent hydraulic dry disc brakesReference
Open operator station. Two-post ROPS optional. Cab optional with heat and air-conditioning.Reference
Variants
Farmall 1256row-cropReference
IH 1256standardReference
Engine
International Harvester 6.7L 6-cyl dieselReference
Fuel tank159.0 LReference
Drawbar (tested)76.1 kWReference
International Harvester DT407Reference
turbocharged dieselReference
6-cylinderReference
liquid-cooledReference
Displacement6.7 LReference
Bore/Stroke110 x 117 mmReference
Air cleanerdual dry elementsReference
Compression17:1Reference
Rated RPM2400Reference
Starter volts12Reference
Oil capacity14.2 LReference
Coolant capacity22.7 LReference
Power at rated engine speed86.6 kWReference
Max power76.1 kWReference
Transmission
8-speed gearReference
16-speed partial power shiftReference
TypegearReference
Gears8 forward and 4 reverseReference
Oil capacity64.4 LReference
The 1256's transmission provides four gears (1-4) in high, low, and reverse ranges.Reference
TransmissionTorque AmplifierReference
Typepartial power shiftReference
Gears16 forward and 8 reverseReference
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.Reference
PTO & Hydraulics
PTO (claimed)84.3 kWReference
PTO (tested)86.6 kWReference
Typeopen centerReference
Valves1Reference
Pump flow30.3 lpmReference
Rear TypeIII/IIReference
Rear PTOindependentReference
Rear PTO Type1000Reference
Engine RPM1000@2100Reference
Power at rated PTO speed84.5 kWReference
Dimensions
Wheelbase266 cmReference
Wheelbase233 cmReference
Weight9940 to 11030 poundsReference
Front tire10.00-16Reference
Rear tire18.4-38 (Farmall)Reference
Standard tires (ag)Front: 10.00-16. Rear: 18.4-38 (Farmall)Reference
Standard tires (ag)Front: 11.00-16. Rear: 24.5-32 (International)Reference
Length416 cmReference
Width233 cmReference
Height (steering wheel)218 cmReference
Bar rear axle82 mmReference
Shipping4508 kgReference
Shipping5003 kgReference
Operating4719 kgReference
Ballasted6264 kgReference
1256 Serial Numbers
Location:Serial number place on the left side of the 1256, on the clutch housing.Reference
19677501 (Farmall)Reference
19688849 (Farmall)Reference
196913140 (Farmall)Reference
19677501 (IH)Reference
19687703 (IH)Reference
19698444 (IH)Reference
FAQ: How to read a serial number table.Reference
Electrical
Charging systemalternatorReference
Charging amps55Reference
Batteries2Reference
Battery volts6Reference
Battery AH204Reference
Test results
Diesel Torque Amplifier 2WDApril 15 - 30, 1968Link: Nebraska Tractor Test 971 fileReference
PTO performanceReference
Fuel use28.4 l/hourReference
Fuel use25.7 l/hourReference
Drawbar performanceReference
Fuel use28.8 l/hourReference
Gear 1H-TA used for power test.Reference
Max pull5036 kgReference
Gear 3L-TA used for pull test.Reference
Speeds
With 18.4-38 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.