5 material differences · fewer than 12

Tractor oneHELA D 381938No measured PTO figureTractor twoHELA D 391939No measured PTO figure

Which should you choose?

Read our verdict on the D 38 and the D 39 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

Field by field

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

HELA D 38 and HELA D 39, field by field
FieldD 38D 39Gap
Engine
Engine power, claimed claimed21.6 hp21.6 hp—
Engine declaredKHD F2M 414KHD F2M 414—
Displacement declared2.20 L2.20 L—
Maximum torque declared88 lb·ft · 120 N·m——
Transmission
Top speed declared12.4 mph · 20 km/h12.1 mph · 19.4 km/h—
Clutch declaredSingle-plate dry clutch by Lanz or Fichtel & SachsSingle-plate dry clutch by Fichtel & Sachsdiffers
Hydraulics & hitch
Rear PTO speeds declared550 rpm540 rpmdiffers
Weight & dimensions
Unladen weight declared3,527 lb · 1,600 kg3,086 lb · 1,400 kg+14% D 38
Wheelbase declared70.9 in · 1,800 mm68.9 in · 1,750 mm—
Length declared114.2 in · 2,900 mm100.8 in · 2,560 mm+13% D 38
Width declared60.6 in · 1,540 mm59.1 in · 1,500 mm—
Ground clearance declared14.2 in · 360 mm10.2 in · 260 mm+38% D 38
Turning radius, braked declared4.1 ft · 1.25 m——
Fuel tank declared—40.2 qt · 38 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.

HELA D 38 sources

Source
  • Source: Traktorenlexikon, “HELA D38 (1938)”
  • Source: Traktorenlexikon, “Fahr D 22”

HELA D 39 sources

Source
  • Source: Traktorenlexikon, “HELA D39 (1939)”
  • Source: Traktorenlexikon, “Fahr D 22”