7 material differences · fewer than 12

Tractor oneInternational Harvester F-121932–1938No measured PTO figureTractor twoInternational Harvester W-121934–1938No measured PTO figure

Which should you choose?

Read our verdict on the F-12 and the W-12 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

7 material differences · 1 fields identical or within 5%, which is not counted as material

International Harvester F-12 and International Harvester W-12, field by field
FieldF-12W-12Gap
Engine
Engine power, claimed claimed15 hp15.8 hp+7% W-12
Engine declaredINTERNATIONAL HARVESTER or WAUKESHA 113INTERNATIONAL HARVESTER 113differs
Displacement declared1.85 L1.85 L—
Transmission
Top speed declared4.0 mph · 6.5 km/h3.7 mph · 6.0 km/h+8% F-12
Clutch declaredpedal operated dry ROCKFORD single plate clutch——
Hydraulics & hitch
Rear PTO speeds declared538 rpm540 rpmdiffers
Weight & dimensions
Unladen weight declared2,701 lb · 1,225 kg2,899 lb · 1,315 kg+7% W-12
Wheelbase declared76.0 in · 1,930 mm60.0 in · 1,524 mm+27% F-12
Length declared124.0 in · 3,150 mm103.0 in · 2,616 mm+20% F-12
Width declared74.0–84.0 in · 1,880–2,134 mm50.0 in · 1,270 mmdiffers
Turning radius, braked declared—14.0 ft · 4.27 m—
Fuel tank declared—44.0 qt · 41.6 L—

Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.

International Harvester F-12 sources

Source
  • Source: Traktorenlexikon, “Farmall F-12”
  • Source: Traktorenlexikon, “McCormick F-12”
  • Source: Traktorenlexikon, “IHC F-12”

International Harvester W-12 sources

Source
  • Source: Traktorenlexikon, “McCormick W-12”
  • Source: Traktorenlexikon, “McCormick F-12-G”