Compare/International Harvester 956 vs International Harvester 966

International Harvester 956 vs International Harvester 966

Verdict: International Harvester 956 vs International Harvester 966

The International Harvester 956 and the International Harvester 966 are both tractors — here is how they stack up on the figures that matter. International Harvester 966 leads on rated power with 96 hp against 95 hp. International Harvester 956 is the lighter machine (9,458 kg vs 11,116 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 956 is the newer design (1982 vs 1971). In short: choose the International Harvester 966 for outright pulling power, or the International Harvester 956 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

95 hp

96 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

liquid-cooledReference

The hydrostatic transmission option ended in 1973 when the Hydro 100 began production.Reference

Final drives

planetaryReference

—

Differential lock

mechanical rearReference

—

Total built

—

21,017Reference

Variants

956XL

deluxe cabReference

—

Hi-Clear

—

high-crop modelReference

Engine

Engine (net)

70.8 kWReference

—

Displacement

5.9 LReference

6.8 LReference

Bore/Stroke

98 x 129 mmReference

109 x 121 mmReference

Power (net)

70.8 kWReference

—

Fuel system

direct injectionReference

—

Air cleaner

dryReference

dual dry elementsReference

Rated RPM

2200Reference

2600 (late)Reference

Torque

339.0 NmReference

—

Torque RPM

1400Reference

—

Starter volts

12Reference

—

Oil capacity

12.0 LReference

85.2 LReference

Coolant capacity

24.0 LReference

22.7 LReference

Engine

—

84.3 kWReference

Drawbar (claimed)

—

62.6 kWReference

Drawbar (tested)

—

63.5 kWReference

Power

—

84.3 kWReference

Firing order

—

1-5-3-6-2-4Reference

Power at rated engine speed

—

75.2 kWReference

Max power

—

63.5 kWReference

Transmission

Gears

16 forward and 8 reverseReference

infinite forward and reverseReference

Transmission

—

Torque AmplifierReference

PTO & Hydraulics

PTO (claimed)

67.9 kWReference

70.8 kWReference

Hydraulic system

46.2 LReference

85.2 LReference

Type

two-speed power shiftReference

hydrostaticReference

Capacity

46.2 LReference

85.2 LReference

Pressure

161.8 barReference

137.9 barReference

Pump flow

42.0 lpmReference

45.4 lpmReference

Rear Type

IIReference

Control

position and draft controlReference

—

Rear lift (at ends)

5000 kgReference

—

Rear PTO

independentReference

Clutch

310mm cerametallic discReference

dry discReference

Rear PTO Type

540/1000Reference

Engine RPM

1000@2000Reference

—

PTO (tested)

—

75.2 kWReference

Valves

—

1 to 4Reference

Total flow

—

79.5 lpmReference

Steering flow

—

34.1 lpmReference

Steering press.

—

106.9 barReference

Rear lift (at 24"/610mm)

—

1995 kgReference

Rear lift

—

2268 kgReference

Power at rated PTO speed

—

75.7 kWReference

Capacities

Fuel

140.0 LReference

Dimensions

2WD Wheelbase

262 cmReference

—

4WD Wheelbase

258 cmReference

—

Weight

9458 to 10538 poundsReference

11116 to 11700 poundsReference

Front tire

10.00-16Reference

9.5L-15Reference

2WD Rear tire

16.9R38Reference

—

2WD Standard tires (ag)

Front: 10.00-16. Rear: 16.9R38Reference

—

4WD Standard tires (ag)

Front: 12.4R28. Rear: 16.9R38Reference

—

2WD Length

419 cmReference

—

4WD Length

422 cmReference

—

Width

231 cmReference

248 cmReference

Height (cab)

274 cmReference

—

2WD Cab Weight

4290 kgReference

—

4WD Cab Weight

4780 kgReference

—

4WD Clearance (front axle)

38 cmReference

—

2WD Front tread

149 to 180 cmReference

—

4WD Front tread

162 to 190 cmReference

—

Rear tread

170 to 220 cmReference

—

Wheelbase

—

266 cmReference

Rear tire

—

18.4-34Reference

Ag front

—

9.5L-15Reference

Ag rear

—

18.4-34Reference

Length

—

419 cmReference

Height (exhaust)

—

266 cmReference

Ground clearance

—

35 cmReference

Bar rear axle

—

82 mmReference

Operating

—

5307 kgReference

Ballasted

—

6123 kgReference

Electrical

Ground

negativeReference

—

Charging system

alternatorReference

—

Charging amps

55Reference

32Reference

Battery volts

12Reference

6Reference

Battery AH

110Reference

172Reference

Batteries

—

2Reference

966 Serial Numbers

1971

—

7101Reference

1972

—

11815Reference

1973

—

17794Reference

1974

—

22526Reference

1975

—

28119Reference

1976

—

31772Reference

Location:

—

Clutch housing, left sideReference

Test results

Fuel use

—

26.1 l/hourReference

Max pull

—

4552 kgReference

Speeds

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.