7 material differences · fewer than 12

Tractor oneDavid Brown 950 (Implematic)1958–1962No measured PTO figureTractor twoJ.I. Case 411-B1958–1960No measured PTO figure

Which should you choose?

Read our verdict on the 950 (Implematic) and the 411-B → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

7 material differences · 3 fields identical or within 5%, which is not counted as material

David Brown 950 (Implematic) and J.I. Case 411-B, field by field
Field950 (Implematic)411-BGap
Engine
Engine power, claimed claimed42.5 hp36.5 hp+17% 950 (Implematic)
Engine declaredDAVID BROWN AK 4/40 T or AG 4/40 T——
Displacement declared2.71 L——
Transmission
Top speed declared12.4 mph · 20 km/h12.4 mph · 20 km/h—
Clutch declaredPedal-operated dry BORG & BECK single-plate clutch——
Hydraulics & hitch
Pump flow declared7.4 gpm · 28.0 L/min3.0 gpm · 11.4 L/min+146% 950 (Implematic)
Rear PTO speeds declared540/1000 rpm540 rpmdiffers
Weight & dimensions
Unladen weight declared4,189 lb · 1,900 kg4,350 lb · 1,973 kg—
Wheelbase declared76.7 in · 1,948 mm84.5 in · 2,146 mm+10% 411-B
Length declared118.0 in · 2,997 mm130.0 in · 3,302 mm+10% 411-B
Width declared64.0 in · 1,626 mm79.6 in · 2,022 mm+24% 411-B
Ground clearance declared15.9 in · 404 mm20.9 in · 530 mm+31% 411-B
Turning radius, braked declared10.1 ft · 3.08 m7.8 ft · 2.39 m+29% 950 (Implematic)
Fuel tank declared55.2 qt · 52.2 L55.2 qt · 52.2 L—

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.

David Brown 950 (Implematic) sources

Source
  • Source: Traktorenlexikon, “David Brown 950”

J.I. Case 411-B sources

Source
  • Source: Traktorenlexikon, “Case 411-B”