7 material differences · fewer than 12

Tractor oneInternational Harvester Farmall 8061963–1967No measured PTO figureTractor twoJ.I. Case 931 GP1959–1969No measured PTO figure

Which should you choose?

Read our verdict on the Farmall 806 and the 931 GP → 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 · 3 fields identical or within 5%, which is not counted as material

International Harvester Farmall 806 and J.I. Case 931 GP, field by field
FieldFarmall 806931 GPGap
Engine
Engine power, claimed claimed93.7 hp83.0 hp+13% Farmall 806
Engine declaredINTERNATIONAL HARVESTER C-301——
Transmission
Top speed declared18.6 mph · 30 km/h15.5 mph · 25 km/h+20% Farmall 806
Clutch declaredPedal operated dry single plate clutchPedal-operated dry CASE single-disc clutchdiffers
Hydraulics & hitch
Pump flow declared—15.5 gpm · 58.7 L/min—
Rear PTO speeds declared540/1000 rpm540/1000 rpm—
Weight & dimensions
Unladen weight declared8,651 lb · 3,924 kg8,915 lb · 4,044 kg—
Wheelbase declared101.2 in · 2,570 mm108.0 in · 2,743 mm+7% 931 GP
Length declared161.0 in · 4,089 mm162.0 in · 4,115 mm—
Width declared110.0 in · 2,794 mm85.2 in · 2,165 mm+29% Farmall 806
Ground clearance declared21.4 in · 543 mm17.0 in · 432 mm+26% Farmall 806
Turning radius, braked declared9.4 ft · 2.87 m10.8 ft · 3.30 m+15% 931 GP
Fuel tank declared168.0 qt · 159.0 L95.9–120.0 qt · 90.8–113.6 Ldiffers

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 Farmall 806 sources

Source
  • Source: Traktorenlexikon, “Farmall Farmall 806”
  • Source: Traktorenlexikon, “IHC 806”

J.I. Case 931 GP sources

Source
  • Source: Traktorenlexikon, “Case 931”