Compare/International Harvester 644 vs International Harvester TD-14A

International Harvester 644 vs International Harvester TD-14A

Verdict: International Harvester 644 vs International Harvester TD-14A

The International Harvester 644 and the International Harvester TD-14A are both tractors — here is how they stack up on the figures that matter. International Harvester TD-14A leads on rated power with 61 hp against 60 hp. International Harvester 644 is the lighter machine (6,350 kg vs 15,975 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester TD-14A holds more fuel (170.3 L vs 74.2 L) for longer stints between fills. International Harvester 644 is the newer design (1974 vs 1949). In short: choose the International Harvester TD-14A for outright pulling power, or the International Harvester 644 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

60 hp

61 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

liquid-cooledReference

Gear 1 used for pull test.Reference

Drive

—

crawlerReference

Engine

Fuel tank

74.2 LReference

170.3 LReference

Engine

44.7 kWReference

—

Displacement

3.4 LReference

7.6 LReference

Bore/Stroke

98 x 111 mmReference

121 x 165 mmReference

Power

44.7 kWReference

—

Rated RPM

2150Reference

1400Reference

Starter volts

12Reference

Aux. fuel

—

5.0 LReference

Drawbar (claimed)

—

45.1 kWReference

Belt (claimed)

—

53.7 kWReference

Drawbar (tested)

—

46.7 kWReference

Belt (tested)

—

53.5 kWReference

Air cleaner

—

oil bathReference

Compression

—

15.5:1Reference

Starter

—

gasoline-startReference

Oil capacity

—

15.1 LReference

Coolant capacity

—

71.9 LReference

Belt power (max)

—

53.5 kWReference

Max power

—

46.7 kWReference

Transmission

Gears

8 forward and 4 reverseReference

6 forward and 2 reverseReference

Type

—

gearReference

Clutch

—

dry discReference

PTO & Hydraulics

Pump flow

29.9 lpmReference

—

Rear Type

IIReference

—

Rear lift

2900 kgReference

—

Rear PTO Type

540/1000Reference

540Reference

Engine RPM

1000@2000Reference

—

Rear PTO

—

optionalReference

Dimensions

Wheelbase

223 cmReference

—

Weight

6350 to 7078 poundsReference

15975 to 18300 poundsReference

Front tire

7.50-16Reference

—

Rear tire

16.9-30Reference

—

Ag front

9.5-24 (MFWD)Reference

—

Ag rear

16.9-30Reference

—

Length

377 cmReference

340 cmReference

Height

248 cmReference

229 cmReference

2WD Weight

2880 kgReference

—

4WD Weight

3210 kgReference

—

Gauge

—

187 cmReference

Shipping

—

7631 kgReference

Operating

—

8300 kgReference

Electrical

Ground

negativeReference

—

Battery volts

12Reference

—

International Harvester TD-14A attachments

TD-14A Serial Number Location

TD-14A Serial Numbers

1949

—

26760 (TDF)Reference

1950

—

27082 (TDF)Reference

1951

—

29361 (TDF)Reference

1952

—

32427 (TDF)Reference

1953

—

34525 (TDF)Reference

1954

—

37344 (TDF)Reference

1955

—

39301 (TD141)Reference

1956

—

41551 (TD142)Reference

1957

—

43968 (TD142)Reference

1958

—

45010 (TD142)Reference

Final

—

45558 (TD142)Reference

Capacities

Diameter

—

29 cmReference

Width

—

233 cmReference

RPM

—

875Reference

Speed

—

820.52 meters/minReference

International Harvester TD-14A Tracks

Length on ground

—

199 cmReference

Area on ground

—

1.8 m²Reference

Ground pressure

—

0.4 barReference

Test results

Belt fuel use (max)

—

17.8 l/hourReference

Max pull

—

6646 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.