6 material differences · fewer than 12

Tractor oneJ.I. Case 931 GP1959–1969No measured PTO figureTractor twoSteyr 901968–1974No measured PTO figure

Which should you choose?

Read our verdict on the 931 GP and the 90 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

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

J.I. Case 931 GP and Steyr 90, field by field
Field	931 GP	90	Gap
Engine
Engine power, claimed claimed	83.0 hp	88.8 hp	+7% 90
Engine declared	—	Steyr WD-610	—
Displacement declared	—	5.98 L	—
Maximum torque declared	—	263 lb·ft · 357 N·m	—
Transmission
Top speed declared	15.5 mph · 25 km/h	15.5 mph · 25 km/h	—
Clutch declared	Pedal-operated dry CASE single-disc clutch	Dry Fichtel & Sachs single-plate clutch	differs
Hydraulics & hitch
Pump flow declared	15.5 gpm · 58.7 L/min	8.9 gpm · 33.6 L/min	+75% 931 GP
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	8,915 lb · 4,044 kg	7,562 lb · 3,430 kg	+18% 931 GP
Wheelbase declared	108.0 in · 2,743 mm	99.8 in · 2,534 mm	+8% 931 GP
Length declared	162.0 in · 4,115 mm	158.1 in · 4,015 mm	—
Width declared	85.2 in · 2,165 mm	82.3 in · 2,090 mm	—
Ground clearance declared	17.0 in · 432 mm	—	—
Turning radius, braked declared	10.8 ft · 3.30 m	12.9 ft · 3.94 m	+19% 90
Fuel tank declared	95.9–120.0 qt · 90.8–113.6 L	124.7 qt · 118.0 L	differs

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.

J.I. Case 931 GP sources

Source

Source: Traktorenlexikon, “Case 931”

Steyr 90 sources