Compare/International Harvester 743 vs International Harvester TD-18

International Harvester 743 vs International Harvester TD-18

Verdict: International Harvester 743 vs International Harvester TD-18

The International Harvester 743 and the International Harvester TD-18 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 72 hp. International Harvester 743 is the lighter machine (6,349 kg vs 9,752 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester TD-18 holds more fuel (227.1 L vs 106.0 L) for longer stints between fills. International Harvester 743 is the newer design (1981 vs 1938). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer 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

72 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

Four gears in each of two ranges, plus reverse range.Reference

Gear 1 used for pull test.Reference

Final drives

planetaryReference

—

Differential lock

mechanical rearReference

—

Total built

—

22,016Reference

Drive

—

crawlerReference

Engine

Fuel tank

106.0 LReference

227.1 LReference

Engine (gross)

54.0 kWReference

—

Engine (net)

49.0 kWReference

—

Displacement

3.9 LReference

11.3 LReference

Bore/Stroke

98 x 129 mmReference

121 x 165 mmReference

Rated Power (net)

49.0 kWReference

—

Power (gross)

54.0 kWReference

—

Rated RPM

2300Reference

1200Reference

Starter

electricReference

gasoline startReference

Starter volts

12Reference

Aux. fuel

—

5.0 LReference

Drawbar (tested)

—

54.0 kWReference

Belt (tested)

—

59.9 kWReference

Air cleaner

—

oil bathReference

Coolant capacity

—

98.4 LReference

Belt power (max)

—

59.9 kWReference

Max power

—

54.0 kWReference

Transmission

SynchronReference

—

Type

partially synchronizedReference

gearReference

Gears

16 forward and 8 reverseReference

6 forward and 2 reverseReference

Clutch

280mm dry discReference

dry discReference

PTO & Hydraulics

PTO (claimed)

46.0 kWReference

—

Pump flow

29.9 lpmReference

—

Rear Type

IIReference

—

Rear lift

3099 kgReference

—

Rear PTO Type

540/1000 (1.375)Reference

—

Dimensions

Wheelbase

223 cmReference

—

Weight

6349 to 7738 poundsReference

9752 kgReference

Front tire

7.50-16Reference

—

2WD Rear tire

16.9/14-30Reference

—

2WD Standard tires (ag)

Front: 7.50-16. Rear: 16.9/14-30Reference

—

4WD Standard tires (ag)

Front: 9.5/9-24. Rear: 16.9/14-30Reference

—

Length

378 cmReference

421 cmReference

Height

262 cmReference

269 cmReference

2WD ROPS

2879 kgReference

—

2WD Cab

3114 kgReference

—

4WD ROPS

3270 kgReference

—

4WD Cab

3509 kgReference

—

Width

—

241 cmReference

Electrical

Ground

negativeReference

—

Charging system

alternatorReference

—

Charging amps

33Reference

—

Battery volts

12Reference

—

TD-18 Serial Numbers

1938

—

501Reference

1939

—

520Reference

1940

—

1240Reference

1941

—

2174Reference

1942

—

3607Reference

1943

—

5804Reference

1944

—

6899Reference

1945

—

9011Reference

1946

—

11092Reference

1947

—

12644Reference

1948

—

14626Reference

1949

—

16708Reference

Location:

—

upper-left dashReference

Final

—

22535Reference

Test results

Belt fuel use (max)

—

19.7 l/hourReference

Max pull

—

8606 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.