J.I. Case 311-B vs OLIVER 1250-A (4 WD)

7 material differences · fewer than 12

Tractor one

J.I. Case 311-B

1958–1959

No measured PTO figure

Tractor two

OLIVER 1250-A (4 WD)

1969

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 (1958–1959; 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

7 material differences · 4 fields identical or within 5%, which is not counted as material

J.I. Case 311-B and OLIVER 1250-A (4 WD), field by field
Field311-B1250-A (4 WD)Gap
Engine
Engine power, claimed claimed36.5 hp41.4 hp+14% 1250-A (4 WD)
Engine declaredFIAT 853-A
Displacement declared2.34 L
Maximum torque declared105 lb·ft · 143 N·m
Transmission
Top speed declared15.5 mph · 25 km/h15.5 mph · 25 km/h
Clutch declaredPedal operated dry LuK single disc clutch
Hydraulics & hitch
Pump flow declared3.0 gpm · 11.4 L/min5.8 gpm · 21.8 L/min+91% 1250-A (4 WD)
Three-point lift at ends declared3,197 lb · 1,450 kg
Rear PTO speeds declared540 rpm540 rpm
Weight & dimensions
Unladen weight declared4,074 lb · 1,848 kg4,123 lb · 1,870 kg
Wheelbase declared84.5 in · 2,146 mm77.0 in · 1,955 mm+10% 311-B
Length declared130.0 in · 3,302 mm126.6 in · 3,215 mm
Width declared79.6 in · 2,022 mm62.4 in · 1,585 mm+28% 311-B
Height declared61.0 in · 1,549 mm92.7 in · 2,355 mm+52% 1250-A (4 WD)
Ground clearance declared21.5 in · 546 mm18.3 in · 465 mm+17% 311-B
Turning radius, braked declared7.8 ft · 2.39 m9.4 ft · 2.86 m+20% 1250-A (4 WD)
Fuel tank declared52.0 qt · 49.2 L57.1 qt · 54.0 L+10% 1250-A (4 WD)

J.I. Case 311-B sources

Source
  • Source: Traktorenlexikon, “Case 311-B”

OLIVER 1250-A (4 WD) sources

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