ALLIS-CHALMERS Modell-WD vs International Harvester B-250

9 material differences · fewer than 12

Tractor one

ALLIS-CHALMERS Modell-WD

1948–1953

No measured PTO figure

Tractor two

International Harvester B-250

1955–1961

No measured PTO figure

Which should you choose?

We will not advise between these two machines, because they were not built in overlapping years (1948–1953; 1955–1961). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.

Field by field

9 material differences · 2 fields identical or within 5%, which is not counted as material

ALLIS-CHALMERS Modell-WD and International Harvester B-250, field by field
FieldModell-WDB-250Gap
Engine
Engine power, claimed claimed30.2 hp29.6 hp
Engine declaredINTERNATIONAL HARVESTER BD-144
Displacement declared2.36 L
Maximum torque declared105 lb·ft · 142 N·m
Transmission
Top speed declared9.9 mph · 16 km/h12.4 mph · 20 km/h+25% B-250
Clutch declaredFoot-operated spring-loaded dry Rockford single-disc clutch
Hydraulics & hitch
Pump flow declared1.2 gpm · 4.7 L/min5.0 gpm · 18.9 L/min+302% B-250
Rear PTO speeds declared548 rpm540 rpmdiffers
Weight & dimensions
Unladen weight declared3,389 lb · 1,537 kg3,333 lb · 1,512 kg
Wheelbase declared88.1 in · 2,238 mm74.1 in · 1,883 mm+19% Modell-WD
Length declared138.6 in · 3,521 mm151.4 in · 3,845 mm+9% B-250
Width declared56.0 in · 1,422 mm63.8 in · 1,620 mm+14% B-250
Height declared68.0 in · 1,727 mm59.2 in · 1,503 mm+15% Modell-WD
Ground clearance declared15.6 in · 397 mm
Turning radius, braked declared8.2 ft · 2.50 m10.2 ft · 3.12 m+25% B-250
Fuel tank declared72.1 qt · 68.2 L41.2 qt · 39.0 L+75% Modell-WD

ALLIS-CHALMERS Modell-WD sources

Source
  • Source: Traktorenlexikon, “Allis-Chalmers WD”

International Harvester B-250 sources

Source
  • Source: Traktorenlexikon, “IHC B-250”
  • Source: Traktorenlexikon, “McCormick B-250”