7 material differences · fewer than 12

Tractor oneHELA D 381938No measured PTO figureTractor twoHermann Lanz D 401949–1950No measured PTO figure

Which should you choose?

Read our verdict on the D 38 and the D 40 → 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 · 4 fields identical or within 5%, which is not counted as material

HELA D 38 and Hermann Lanz D 40, field by field
Field	D 38	D 40	Gap
Engine
Engine power, claimed claimed	21.6 hp	21.6 hp	—
Engine declared	KHD F2M 414	MWM KD 215 Z	differs
Displacement declared	2.20 L	2.36 L	+7% D 40
Maximum torque declared	88 lb·ft · 120 N·m	—	—
Transmission
Top speed declared	12.4 mph · 20 km/h	12.0 mph · 19.3 km/h	—
Clutch declared	Single-plate dry clutch by Lanz or Fichtel & Sachs	Single-plate dry clutch	differs
Hydraulics & hitch
Rear PTO speeds declared	550 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	3,527 lb · 1,600 kg	3,086 lb · 1,400 kg	+14% D 38
Wheelbase declared	70.9 in · 1,800 mm	68.9 in · 1,750 mm	—
Length declared	114.2 in · 2,900 mm	100.8 in · 2,560 mm	+13% D 38
Width declared	60.6 in · 1,540 mm	59.1 in · 1,500 mm	—
Ground clearance declared	14.2 in · 360 mm	10.2 in · 260 mm	+38% D 38
Turning radius, braked declared	4.1 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”

Hermann Lanz D 40 sources