Compare/International Harvester 1055 vs International Harvester 966

International Harvester 1055 vs International Harvester 966

Verdict: International Harvester 1055 vs International Harvester 966

The International Harvester 1055 and the International Harvester 966 are both tractors — here is how they stack up on the figures that matter. International Harvester 1055 leads on rated power with 100 hp against 96 hp. International Harvester 1055 is the lighter machine (9,635 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 1055 is the newer design (1977 vs 1971). In short: choose the International Harvester 1055 for outright pulling power, or the International Harvester 966 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

100 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

Total built

—

21,017Reference

Engine

Fuel tank

140.0 LReference

—

Engine

74.6 kWReference

84.3 kWReference

Displacement

5.9 LReference

6.8 LReference

Bore/Stroke

98 x 129 mmReference

109 x 121 mmReference

Power

74.6 kWReference

84.3 kWReference

Rated RPM

2200Reference

2600 (late)Reference

Drawbar (claimed)

—

62.6 kWReference

Drawbar (tested)

—

63.5 kWReference

Air cleaner

—

dual dry elementsReference

Firing order

—

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

Oil capacity

—

85.2 LReference

Coolant capacity

—

22.7 LReference

Power at rated engine speed

—

75.2 kWReference

Max power

—

63.5 kWReference

Transmission

Gears

16 forward and 8 reverseReference

infinite forward and reverseReference

Clutch

—

dry discReference

Transmission

—

Torque AmplifierReference

PTO & Hydraulics

Pump flow

36.0 lpmReference

45.4 lpmReference

Rear lift

4150 kgReference

2268 kgReference

Rear PTO Type

540, 1000Reference

540/1000Reference

PTO (claimed)

—

70.8 kWReference

PTO (tested)

—

75.2 kWReference

Hydraulic system

—

85.2 LReference

Type

—

hydrostaticReference

Capacity

—

85.2 LReference

Pressure

—

137.9 barReference

Valves

—

1 to 4Reference

Total flow

—

79.5 lpmReference

Steering flow

—

34.1 lpmReference

Steering press.

—

106.9 barReference

Rear Type

—

IIReference

Rear lift (at 24"/610mm)

—

1995 kgReference

Rear PTO

—

independentReference

Power at rated PTO speed

—

75.7 kWReference

Dimensions

Wheelbase

262 cmReference

266 cmReference

Weight

9635 to 10473 poundsReference

11116 to 11700 poundsReference

Front tire

11.00-16Reference

9.5L-15Reference

Rear tire

18.4-38Reference

18.4-34Reference

Ag front

13.6-28 (MFWD)Reference

9.5L-15Reference

Ag rear

18.4-38Reference

18.4-34Reference

Length

425 cmReference

419 cmReference

Height

277 cmReference

—

2WD Weight

4370 kgReference

—

4WD Weight

4750 kgReference

—

Width

—

248 cmReference

Height (exhaust)

—

266 cmReference

Ground clearance

—

35 cmReference

Bar rear axle

—

82 mmReference

Operating

—

5307 kgReference

Ballasted

—

6123 kgReference

Variants

Hi-Clear

—

high-crop modelReference

Capacities

Fuel

—

140.0 LReference

966 Serial Numbers

1971

—

7101Reference

1972

—

11815Reference

1973

—

17794Reference

1974

—

22526Reference

1975

—

28119Reference

1976

—

31772Reference

Location:

—

Clutch housing, left sideReference

Electrical

Charging amps

—

32Reference

Batteries

—

2Reference

Battery volts

—

6Reference

Battery AH

—

172Reference

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.