8 material differences · fewer than 12

Tractor oneInternational Harvester 4441972–1977No measured PTO figureTractor twoOLIVER 1250-A (4 WD)1969No measured PTO figure

Which should you choose?

We will not advise between these two machines, because they were not built in overlapping years (1972–1977; 1969–1969). 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

8 material differences · 6 fields identical or within 5%, which is not counted as material

International Harvester 444 and OLIVER 1250-A (4 WD), field by field
Field4441250-A (4 WD)Gap
Engine
Engine power, claimed claimed41.4 hp41.4 hp—
Engine declaredINTERNATIONAL HARVESTER BD-154 AFIAT 853-Adiffers
Displacement declared2.52 L2.34 L+8% 444
Maximum torque declared116 lb·ft · 157 N·m105 lb·ft · 143 N·m+10% 444
Transmission
Top speed declared15.5 mph · 25 km/h15.5 mph · 25 km/h—
Clutch declared—Pedal operated dry LuK single disc clutch—
Hydraulics & hitch
Pump flow declared7.2 gpm · 27.3 L/min5.8 gpm · 21.8 L/min+25% 444
Rear PTO speeds declared540 rpm540 rpm—
Weight & dimensions
Unladen weight declared4,129 lb · 1,873 kg4,123 lb · 1,870 kg—
Wheelbase declared70.0 in · 1,778 mm77.0 in · 1,955 mm+10% 1250-A (4 WD)
Length declared121.0 in · 3,073 mm126.6 in · 3,215 mm—
Width declared65.0 in · 1,651 mm62.4–87.2 in · 1,585–2,215 mmdiffers
Ground clearance declared17.0 in · 432 mm18.3 in · 465 mm+8% 1250-A (4 WD)
Turning radius, braked declared8.2 ft · 2.49 m9.4 ft · 2.86 m+15% 1250-A (4 WD)
Fuel tank declared56.0 qt · 53.0 L57.1 qt · 54.0 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 444 sources

Source
  • Source: Traktorenlexikon, “IHC 444”

OLIVER 1250-A (4 WD) sources

Source
  • Source: Traktorenlexikon, “Oliver 1250-A”