Compare/International Harvester 633 vs International Harvester TD-9

International Harvester 633 vs International Harvester TD-9

Verdict: International Harvester 633 vs International Harvester TD-9

The International Harvester 633 and the International Harvester TD-9 are both tractors — here is how they stack up on the figures that matter. International Harvester 633 leads on rated power with 52 hp against 50 hp. International Harvester 633 is the lighter machine (5,158 kg vs 9,805 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 633 is the newer design (1975 vs 1939). In short: choose the International Harvester 633 for outright pulling power, or the International Harvester TD-9 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

52 hp

50 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

With 12.4/11-36 rear tires.Reference

Diesel 5-speed crawlerJune 25 - July 10, 1951Link: Nebraska Tractor Test 461 fileReference

Total built

—

59,800Reference

Drive

—

crawlerReference

Variants

633

utilityReference

—

633E

narrowReference

—

633V

vineyardReference

—

T-9

—

gasolineReference

TD-9

—

dieselReference

Engine

38.8 kWReference

36.9 kWReference

Displacement

2.9 LReference

5.5 LReference

Bore/Stroke

98 x 129 mmReference

112 x 140 mmReference

Power

38.8 kWReference

38.4 kWReference

Rated RPM

2180Reference

1400Reference

Starter volts

12Reference

Fuel tank

—

117.3 LReference

Aux. fuel

—

2.6 LReference

Drawbar (claimed)

—

30.2 kWReference

Drawbar (tested)

—

29.5 kWReference

Belt (tested)

—

34.8 kWReference

Air cleaner

—

oil bathReference

Compression

—

15.7:1Reference

Idle RPM

—

500-1555Reference

Operating RPM

—

900-1400Reference

Firing order

—

1-3-4-2Reference

Oil capacity

—

20.8 LReference

Coolant capacity

—

49.2 LReference

Belt power (max)

—

34.8 kWReference

Max power

—

29.5 kWReference

Transmission

Gears

16 forward and 8 reverseReference

5 forward and 1 reverseReference

Transmission

SynchronReference

—

Type

—

gearReference

Clutch

—

dry discReference

Capacities

Fuel

60.0 LReference

—

PTO & Hydraulics

Hydraulic system

12.1 LReference

—

Capacity

12.1 LReference

—

Pump flow

32.6 lpmReference

—

Rear Type

IIReference

—

Rear lift

1800 kgReference

—

Rear PTO

independentReference

—

Rear PTO Type

540Reference

540 (1.375)Reference

Dimensions

2WD Wheelbase

207 cmReference

—

4WD Wheelbase

202 cmReference

—

Weight

5158 to 5589 poundsReference

9805 to 10800 poundsReference

Front tire

6.50-16Reference

—

2WD Rear tire

12.4/11-36Reference

—

2WD Standard tires (ag)

Front: 6.50-16. Rear: 12.4/11-36Reference

—

4WD Standard tires (ag)

Front: 10.5-20. Rear: 12.4/11-36Reference

—

2WD Optional tires (ag)

Front: 7.50-16. Rear: 11.2/10-36Reference

—

4WD Optional tires (ag)

Front: 10.5-18. Rear: 16.9/14-28Reference

—

Length

344 cmReference

289 cmReference

Width

164 cmReference

149 cmReference

Height

237 cmReference

—

2WD Shipping weight

2339 kgReference

—

4WD Shipping weight

2535 kgReference

—

Front tread

123 to 177 cmReference

—

Rear tread

142 to 195 cmReference

—

Height (exhaust)

—

200 cmReference

Gauge

—

152 cmReference

Shipping

—

4617 kgReference

Operating

—

4898 kgReference

Electrical

Charging system

alternatorReference

—

Battery volts

12Reference

—

Speeds

TD-9 Serial Numbers

1940

—

501Reference

1941

—

2174Reference

1942

—

4164Reference

1943

—

8664Reference

1944

—

11912Reference

1945

—

18247Reference

1946

—

23692Reference

1947

—

26289Reference

1948

—

29512Reference

1949

—

32973Reference

1950

—

36927Reference

1951

—

40398Reference

1952

—

44710Reference

1953

—

47848Reference

1954

—

52599Reference

1955

—

56208Reference

1956

—

58819Reference

Location:

—

Serial number plate on the lower-left of the dashboard.Reference

International Harvester TD-9 Tracks

Length on ground

—

161 cmReference

Area on ground

—

1.3 m²Reference

Test results

Belt fuel use (max)

—

12.5 l/hourReference

Max pull

—

4494 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.