Compare/International Harvester 666 vs International Harvester 884

International Harvester 666 vs International Harvester 884

Verdict: International Harvester 666 vs International Harvester 884

The International Harvester 666 and the International Harvester 884 are both tractors — here is how they stack up on the figures that matter. International Harvester 666 leads on rated power with 75 hp against 73 hp. International Harvester 884 is the lighter machine (5,905 kg vs 6,780 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 884 is the newer design (1979 vs 1972). In short: choose the International Harvester 666 for outright pulling power, or the International Harvester 884 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

75 hp

73 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

Diesel hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1155 fileReference

With 18.4-30 rear tires.Reference

Total built

9,367Reference

—

Original price

$11,875Reference

—

Engine

Gas Fuel tank

124.9 LReference

—

Diesel Fuel tank

117.3 LReference

—

Engine (gross)

55.9 kWReference

—

Drawbar (claimed)

40.3 kWReference

48.8 kWReference

Drawbar (tested)

43.3 kWReference

47.7 kWReference

Displacement

4.8 LReference

4.4 LReference

Bore/Stroke

95 x 112 mmReference

100 x 140 mmReference

Power (gross)

55.9 kWReference

—

Fuel system

direct injectionReference

—

Air cleaner

dual stage dryReference

dryReference

Compression

7.5:1Reference

—

Rated RPM

2000Reference

2400Reference

Starter volts

12Reference

Coolant capacity

19.9 LReference

13.6 LReference

Power at rated engine speed

51.8 kWReference

54.4 kWReference

Max power

39.6 kWReference

47.7 kWReference

Oil capacity

—

34.1 LReference

Transmission

Torque-AmplifierReference

Torque AmplifierReference

Gears

10 forward and 2 reverseReference

16 forward and 8 reverseReference

Clutch

dry discReference

PTO & Hydraulics

PTO (claimed)

51.5 kWReference

54.4 kWReference

PTO (tested)

51.9 kWReference

54.4 kWReference

Type

two-speed power shiftReference

Pump flow

45.4 lpmReference

—

Rear Type

IIReference

Rear PTO

independentReference

Rear PTO Type

540 (1.375)Reference

540/1000 (1.375)Reference

Power at rated PTO speed

48.8 kWReference

52.0 kWReference

Hydraulic system

—

34.1 LReference

Capacity

—

34.1 LReference

Valves

—

1 or 2Reference

Total flow

—

58.3 lpmReference

Control

—

position and draft controlReference

Rear lift

—

1632 kgReference

Dimensions

Wheelbase

261 cmReference

—

Weight

6780 to 7420 poundsReference

5905 to 7223 poundsReference

Front tire

7.50-16Reference

7.50-18Reference

Rear tire

15.5-38Reference

18.4-30Reference

Ag front

7.50-16Reference

7.50-18Reference

Ag rear

15.5-38Reference

15.5-38 (row-crop)Reference

Length

408 cmReference

—

Width

220 cmReference

—

Height (steering wheel)

195 cmReference

—

Shipping weight

3365 kgReference

—

Clearance (front axle)

53 cmReference

—

Clearance (drawbar)

35 cmReference

—

Bar rear axle

69 mmReference

Front tread

142 to 203 cmReference

—

Rear tread

127 to 243 cmReference

—

Utility Wheelbase

—

223 cmReference

Row-crop Wheelbase

—

214 cmReference

4WD Wheelbase

—

216 cmReference

Low-profile Wheelbase

—

212 cmReference

Utility Length

—

360 cmReference

Row-crop Length

—

353 cmReference

4WD Length

—

376 cmReference

Low-profile Length

—

360 cmReference

Utility Width

—

190 cmReference

Row-crop Width

—

187 cmReference

4WD Width

—

187 cmReference

Low-profile Width

—

199 cmReference

Utility Ground clearance

—

45 cmReference

Row-crop Ground clearance

—

50 cmReference

4WD Ground clearance

—

45 cmReference

Low-profile Ground clearance

—

27 cmReference

Utility Shipping

—

2751 kgReference

Row-crop Shipping

—

2864 kgReference

4WD Shipping

—

3276 kgReference

Low-profile Shipping

—

2678 kgReference

Ballasted

—

4604 kgReference

Utility Steering wheel

—

162 cmReference

Row-crop Steering wheel

—

165 cmReference

4WD Steering wheel

—

162 cmReference

Low-profile Steering wheel

—

143 cmReference

666 Serial Numbers

1972

7500Reference

—

1973

8200Reference

—

1974

11585Reference

—

1975

13131Reference

—

1976

15739Reference

—

Location:

Clutch housing, right sideReference

Serial number plate on the right side of IH 884 frame, above the front axle.Reference

Electrical

Charging system

alternatorReference

—

Battery volts

12Reference

Ground

—

negativeReference

Charging amps

—

45Reference

Test results

Fuel use

20.1 l/hourReference

16.7 l/hourReference

Max pull

3769 kgReference

3681 kgReference

Capacities

Fuel

—

75.7 LReference

884 Serial Numbers

1979

—

501Reference

1980

—

710Reference

1981

—

5575Reference

1982

—

6738Reference

1983

—

8238Reference

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.