J.I. Case 12-25 vs J.I. Case 15-27

6 material differences · fewer than 12

Tractor one

J.I. Case 12-25

1913–1918

No measured PTO figure

Tractor two

J.I. Case 15-27

1919–1924

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% (42%); they were not built in overlapping years (1913–1918; 1919–1924). 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

6 material differences · 1 fields identical or within 5%, which is not counted as material

J.I. Case 12-25 and J.I. Case 15-27, field by field
Field12-2515-27Gap
Engine
Engine power, claimed claimed24.9 hp27.1 hp+9% 15-27
Transmission
Top speed declared2.2 mph · 3.54 km/h3.0 mph · 4.83 km/h+36% 15-27
Clutch declaredHand lever-operated expanding shoe clutch, mounted in the flywheelHand lever-operated twin-disc clutchdiffers
Weight & dimensions
Unladen weight declared8,995 lb · 4,080 kg6,349 lb · 2,880 kg+42% 12-25
Wheelbase declared90.0 in · 2,286 mm76.5 in · 1,943 mm+18% 12-25
Length declared149.0 in · 3,785 mm127.0 in · 3,226 mm+17% 12-25
Width declared73.0 in · 1,854 mm72.0 in · 1,829 mm
Height declared76.0 in · 1,930 mm68.0 in · 1,727 mm+12% 12-25

J.I. Case 12-25 sources

Source
  • Source: Traktorenlexikon, “Case 12-25”

J.I. Case 15-27 sources

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