5 material differences · fewer than 12

Tractor oneJ.I. Case 15-271919–1924No measured PTO figureTractor twoJohn Deere General Purpose1928–1935No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (49%); they were not built in overlapping years (1919–1924; 1928–1935). 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

5 material differences · 0 fields identical or within 5%, which is not counted as material

J.I. Case 15-27 and John Deere General Purpose, field by field
Field15-27General PurposeGap
Engine
Engine power, claimed claimed27.1 hp24.9 hp+9% 15-27
Transmission
Top speed declared3.0 mph · 4.83 km/h4.3 mph · 7.0 km/h+45% General Purpose
Clutch declaredHand lever-operated twin-disc clutchHand operated dry John Deere single plate clutchdiffers
Hydraulics & hitch
Rear PTO speeds declared—520 rpm—
Weight & dimensions
Unladen weight declared6,349 lb · 2,880 kg4,266–4,925 lb · 1,935–2,234 kgdiffers
Wheelbase declared76.5 in · 1,943 mm——
Length declared127.0 in · 3,226 mm112.0 in · 2,845 mm+13% 15-27
Width declared72.0 in · 1,829 mm60.0 in · 1,524 mm+20% 15-27

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 15-27 sources

Source
  • Source: Traktorenlexikon, “Case 15-27”

John Deere General Purpose sources

Source
  • Source: Traktorenlexikon, “John Deere Modell GP”