International Harvester D-436 vs OLIVER 1255 (4 WD)

9 material differences · fewer than 12

Tractor one

International Harvester D-436

1959–1962

No measured PTO figure

Tractor two

OLIVER 1255 (4 WD)

1969–1971

No measured PTO figure

Which should you choose?

We will not advise between these two machines, because the drive differs (2WD; Two-wheel or four-wheel drive); they were not built in overlapping years (1959–1962; 1969–1971). 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 · 6 fields identical or within 5%, which is not counted as material

International Harvester D-436 and OLIVER 1255 (4 WD), field by field
FieldD-4361255 (4 WD)Gap
Engine
Engine power, claimed claimed35.5 hp41.4 hp+17% 1255 (4 WD)
Engine declaredINTERNATIONAL-HARVESTER DD-148FIAT 853-Adiffers
Displacement declared2.43 L2.34 L
Maximum torque declared98 lb·ft · 133 N·m105 lb·ft · 143 N·m+8% 1255 (4 WD)
Transmission
Top speed declared12.4 mph · 20 km/h15.5 mph · 25 km/h+25% 1255 (4 WD)
Clutch declaredpedal operated dry single plate clutchPedal-operated dry LuK single-disc clutchdiffers
Hydraulics & hitch
Pump flow declared6.3 gpm · 24.0 L/min5.8 gpm · 21.8 L/min+10% D-436
Pressure declared2,119 psi · 146 bar
Rear PTO speeds declared540 rpm540 rpm
Weight & dimensions
Unladen weight declared3,854 lb · 1,748 kg4,123 lb · 1,870 kg+7% 1255 (4 WD)
Wheelbase declared74.0 in · 1,880 mm75.7 in · 1,922 mm
Length declared126.6 in · 3,215 mm115.0 in · 2,921 mm+10% D-436
Width declared64.6 in · 1,640 mm62.9 in · 1,598 mm
Height declared61.0 in · 1,550 mm58.6 in · 1,488 mm
Ground clearance declared15.0 in · 380 mm18.2 in · 462 mm+22% 1255 (4 WD)
Turning radius, braked declared9.2 ft · 2.80 m9.4 ft · 2.86 m
Fuel tank declared31.7–58.1 qt · 30.0–55.0 L57.1 qt · 54.0 Ldiffers

International Harvester D-436 sources

Source
  • Source: Traktorenlexikon, “McCormick D-436 Standard”

OLIVER 1255 (4 WD) sources

Source
  • Source: Traktorenlexikon, “Oliver 1255”
  • Source: Traktorenlexikon, “Oliver 1250-A”