J.I. Case Modell-D vs Volvo T-31

9 material differences · fewer than 12

Tractor one

J.I. Case Modell-D

1939–1953

No measured PTO figure

Tractor two

Volvo T-31

1949–1957

No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (38%). 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 · 1 fields identical or within 5%, which is not counted as material

J.I. Case Modell-D and Volvo T-31, field by field
Field	Modell-D	T-31	Gap
Engine
Engine power, claimed claimed	31.6 hp	34 hp	+6% T-31
Engine declared	—	AB-VOLVO D 4 F	—
Displacement declared	—	3.46 L	—
Maximum torque declared	—	134 lb·ft · 182 N·m	—
Transmission
Top speed declared	11.0 mph · 17.7 km/h	18.6 mph · 30 km/h	+69% T-31
Clutch declared	Hand lever operated double disc clutch	Pedal operated dry single-plate clutch	differs
Hydraulics & hitch
Pump flow declared	—	6.3 gpm · 23.8 L/min	—
Pressure declared	—	1,276 psi · 88 bar	—
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	7,004 lb · 3,177 kg	5,060 lb · 2,295 kg	+38% Modell-D
Wheelbase declared	66.4 in · 1,686 mm	77.2 in · 1,960 mm	+16% T-31
Length declared	116.0 in · 2,946 mm	122.6 in · 3,115 mm	+6% T-31
Width declared	61.5 in · 1,562 mm	72.4 in · 1,839 mm	+18% T-31
Height declared	49.5 in · 1,257 mm	82.7 in · 2,100 mm	+67% T-31
Ground clearance declared	14.0 in · 356 mm	16.5 in · 420 mm	+18% T-31
Fuel tank declared	67.9 qt · 64.3 L	63.4 qt · 60.0 L	+7% Modell-D

J.I. Case Modell-D sources

Source

Source: Traktorenlexikon, “Case D”

Volvo T-31 sources

Source

Source: Traktorenlexikon, “Volvo T 31”
Source: Traktorenlexikon, “Bolinder-Munktell BM 31”