Compare/International Harvester 650 vs International Harvester BTD-6

International Harvester 650 vs International Harvester BTD-6

Verdict: International Harvester 650 vs International Harvester BTD-6

The International Harvester 650 and the International Harvester BTD-6 are both tractors — here is how they stack up on the figures that matter. International Harvester 650 leads on rated power with 57 hp against 55 hp. International Harvester BTD-6 is the lighter machine (4,127 kg vs 6,712 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 650 is the newer design (1956 vs 1955). In short: choose the International Harvester 650 for outright pulling power, or the International Harvester BTD-6 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

57 hp

55 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

LP gas 5-speed 2WDMay 21 - 27, 1957Link: Nebraska Tractor Test 621 fileReference

liquid-cooledReference

Total built

4,933Reference

18632Reference

Original price

$4,400 (1958)Reference

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Steering

power assistReference

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Drive

—

crawlerReference

Final drives

—

bull gearReference

Engine

Drawbar (claimed)

33.6 kWReference

30.3 kWReference

Drawbar (tested)

43.4 kWReference

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Belt (tested)

47.7 kWReference

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Displacement

5.7 LReference

4.3 LReference

Bore/Stroke

114 x 140 mmReference

102 x 133 mmReference

Air cleaner

oil bathReference

—

Compression

8.25:1Reference

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Rated RPM

1500Reference

1600Reference

Starter volts

12Reference

Belt power (max)

47.7 kWReference

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Max power

43.4 kWReference

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Fuel tank

—

76.1 LReference

Engine (gross)

—

41.0 kWReference

Engine (net)

—

37.7 kWReference

Belt (claimed)

—

35.7 kWReference

Power (net)

—

37.7 kWReference

Power (gross)

—

41.0 kWReference

Torque

—

284.8 NmReference

Torque RPM

—

1100Reference

Starter

—

electricReference

Oil capacity

—

18.2 LReference

Coolant capacity

—

43.0 LReference

Transmission

Gears

5 forward and 1 reverseReference

Clutch

—

330mm dry discReference

PTO & Hydraulics

PTO (claimed)

42.5 kWReference

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Type

sliding gearReference

gearReference

Valves

1Reference

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Rear PTO

transmissionReference

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Rear PTO Type

540Reference

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Dimensions

Weight

6712 to 7319 poundsReference

4127 kgReference

Front tire

7.50-18Reference

—

Rear tire

14-34Reference

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Ag front

7.50-18Reference

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Ag rear

14-34Reference

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Length

342 cmReference

264 cmReference

Width

193 cmReference

162 cmReference

Height

223 cmReference

153 cmReference

Shipping

3044 kgReference

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Operating

3319 kgReference

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Ballasted

5722 kgReference

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Operating weight

—

4127 kgReference

Ground clearance

—

18 cmReference

Gauge

—

127 cmReference

650 Serial Number Location

650 Serial Numbers

1956

501Reference

3462Reference

1957

688Reference

4641Reference

1958

11659Reference

6463Reference

Test results

Belt fuel use (max)

27.6 l/hourReference

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Max pull

4022 kgReference

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Variants

BT-6

—

petrolReference

BTD-6

—

dieselReference

BTD-6 Serial Numbers

1953

—

501Reference

1954

—

757Reference

1955

—

1942Reference

1959

—

7932Reference

1960

—

9944Reference

1961

—

12038Reference

1962

—

14492Reference

1963

—

16125Reference

1964

—

18076Reference

1965

—

19373Reference

1966

—

19707Reference

1967

—

19924Reference

1968

—

20138Reference

1969

—

20262Reference

1970

—

20414Reference

1971

—

20560Reference

1972

—

20645Reference

1973

—

20723Reference

1974

—

20858Reference

1975

—

20900Reference

Electrical

Charging system

—

generatorReference

International Harvester BTD-6 Tracks

Length on ground

—

148 cmReference

Area on ground

—

1.1 m²Reference

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.