Compare/International Harvester A-866 vs International Harvester TD-18A

International Harvester A-866 vs International Harvester TD-18A

Verdict: International Harvester A-866 vs International Harvester TD-18A

The International Harvester A-866 and the International Harvester TD-18A are both tractors — here is how they stack up on the figures that matter. International Harvester A-866 leads on rated power with 90 hp against 87 hp. International Harvester A-866 is the lighter machine (4,900 kg vs 22,830 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester TD-18A holds more fuel (227.1 L vs 159.0 L) for longer stints between fills. International Harvester A-866 is the newer design (1973 vs 1949). In short: choose the International Harvester A-866 for outright pulling power, or the International Harvester TD-18A if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Clear

Rated power

90 hp

87 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

liquid-cooled inlineReference

Gear 1 used for pull test.Reference

Final drives

bull gearReference

—

Total built

—

22,016Reference

Drive

—

crawlerReference

Steering

—

mechanical steering clutchesReference

Engine

Fuel tank

159.0 LReference

227.1 LReference

Engine

90.2 kWReference

—

Drawbar (claimed)

64.9 kWReference

Displacement

5.9 LReference

11.3 LReference

Bore/Stroke

98 x 129 mmReference

121 x 165 mmReference

Power

90.2 kWReference

—

Fuel system

direct injectionReference

—

Compression

16:1Reference

15.5:1Reference

Rated RPM

2500Reference

1350Reference

Torque

359.3 NmReference

—

Torque RPM

1600Reference

—

Starter

electricReference

gasoline-startReference

Starter volts

12Reference

Aux. fuel

—

5.0 LReference

Belt (claimed)

—

75.3 kWReference

Drawbar (tested)

—

63.8 kWReference

Belt (tested)

—

73.0 kWReference

Air cleaner

—

oil bathReference

Oil capacity

—

24.6 LReference

Coolant capacity

—

98.4 LReference

Belt power (max)

—

73.0 kWReference

Max power

—

63.8 kWReference

Transmission

Torque AmplifierReference

—

Gears

16 forward and 4 reverseReference

6 forward and 2 reverseReference

PTO & Hydraulics

PTO (claimed)

67.1 kWReference

—

Type

two-speed power shiftReference

gearReference

Rear Type

IIReference

—

Rear PTO

independentReference

—

Rear PTO Type

540/1000 (1.375)Reference

—

Engine RPM

1000@2300Reference

—

Dimensions

Wheelbase

265 cmReference

—

Weight

4900 kgReference

22830 to 23630 poundsReference

Front tire

11.00-16Reference

—

Rear tire

23.1-34Reference

—

Ag front

11.00-16Reference

—

Ag rear

18.4-38Reference

—

Length

405 cmReference

421 cmReference

Width

230 cmReference

241 cmReference

Height (steering wheel)

220 cmReference

—

Front tread

151 to 213 cmReference

—

Rear tread

172 to 268 cmReference

—

Height

—

269 cmReference

Shipping weight

—

10718 kgReference

A-866 Serial Numbers

1973

501Reference

—

1974

601Reference

—

1975

761Reference

—

1976

1045Reference

—

1977

1567Reference

—

1978

1998Reference

—

Final

2142Reference

38861 (TD182)Reference

TD-18A Serial Numbers

1949

—

22536 (TDR)Reference

1950

—

22837 (TDR)Reference

1951

—

24668 (TDR)Reference

1952

—

27245 (TDR)Reference

1953

—

29201 (TDR)Reference

1954

—

32089 (TDR)Reference

1955

—

33650 (TD181)Reference

1956

—

36101 (TD182)Reference

1957

—

37882 (TD182)Reference

1958

—

38805 (TD182)Reference

Location:

—

upper-left dashReference

Test results

Belt fuel use (max)

—

25.4 l/hourReference

Max pull

—

9178 kgReference

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.