Compare/International Harvester 100 vs Stihl S 20

International Harvester 100 vs Stihl S 20

Verdict: International Harvester 100 vs Stihl S 20

The International Harvester 100 and the Stihl S 20 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 20 hp. Stihl S 20 is the lighter machine (980 kg vs 1,179 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 100 holds more fuel (41.6 L vs 22.0 L) for longer stints between fills. Stihl S 20 is the newer design (1960 vs 1954). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

Stihl

Fit score

Best match

Clear

Rated power

20 hp

Confidence

40%

Guide price

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Overview

Manufacturer

International HarvesterReference

StihlReference

Gear 1 used for pull test.Reference

air-cooledReference

Total built

135Reference

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Variants

International 100

utility tractorReference

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Farmall 100

row-crop tractorReference

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Engine

Fuel tank

41.6 LReference

22.0 LReference

Drawbar (claimed)

13.3 kWReference

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Drawbar (tested)

13.3 kWReference

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Belt (tested)

15.0 kWReference

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Displacement

2.0 LReference

1.0 LReference

Bore/Stroke

79 x 102 mmReference

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Air cleaner

oil bathReference

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Compression

6.5:1Reference

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Rated RPM

1400Reference

3000Reference

Firing order

1-3-4-2Reference

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Starter volts

6Reference

12Reference

Oil capacity

4.7 LReference

9.5 LReference

Belt power (max)

15.0 kWReference

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Max power

13.3 kWReference

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Engine

—

14.9 kWReference

Power

—

14.9 kWReference

Transmission

Type

sliding gearReference

unsynchronized gearReference

Gears

4 forward and 1 reverseReference

6 forward and 1 reverseReference

Transmission

—

Hurth 819Reference

Clutch

—

single dry plateReference

PTO & Hydraulics

PTO (claimed)

15.0 kWReference

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Rear PTO

—

independentReference

Rear PTO Type

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540Reference

Dimensions

Wheelbase

180 cmReference

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Weight

1179 kgReference

980 kgReference

Front tire

5.00-16Reference

4.50-16Reference

Rear tire

9-24Reference

7.00-30Reference

Ag front

5.00-16Reference

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Ag rear

9-24Reference

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Shipping weight

1179 kgReference

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Standard tires (ag)

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Front: 4.50-16. Rear: 7.00-30Reference

Optional tires (ag)

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Front: 5.00-16. Rear: 10.00-28Reference

Width

—

147 cmReference

Height

—

160 cmReference

Rear tread

—

124 to 150 cmReference

International Harvester 100 attachments

100 Serial Numbers

1954

501Reference

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1955

504Reference

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1956

575Reference

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Location:

Clutch housing, left sideReference

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Final

635Reference

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Test results

Belt fuel use (max)

7.9 l/hourReference

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Max pull

1135 kgReference

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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.