7 material differences · fewer than 12

Tractor oneGüldner A 201937–1942No measured PTO figureTractor twoLanz D 35061936–1952No measured PTO figure

Which should you choose?

Read our verdict on the A 20 and the D 3506 → 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 · 2 fields identical or within 5%, which is not counted as material

Güldner A 20 and Lanz D 3506, field by field
FieldA 20D 3506Gap
Engine
Engine power, claimed claimed19.7 hp19.6 hp—
Engine declaredGüldner 1F——
Displacement declared1.56 L——
Maximum torque declared69 lb·ft · 94 N·m——
Transmission
Top speed declared8.0–9.3 mph · 12.8–15.0 km/h11.5 mph · 18.5 km/hdiffers
Clutch declaredSingle plate dry clutch by Fichtel & SachsPedal operated three jaw clutch with clutch brakediffers
Hydraulics & hitch
Rear PTO speeds declared560 rpm760differs
Weight & dimensions
Unladen weight declared3,527 lb · 1,600 kg3,968–4,718 lb · 1,800–2,140 kgdiffers
Maximum permissible mass declared4,409 lb · 2,000 kg——
Wheelbase declared65.4 in · 1,660 mm66.1 in · 1,680 mm—
Length declared104.3 in · 2,650 mm100.0–115.0 in · 2,540–2,920 mmdiffers
Width declared60.6 in · 1,540 mm56.1–57.9 in · 1,425–1,470 mmdiffers
Ground clearance declared9.8 in · 250 mm9.3–9.8 in · 235–250 mmdiffers
Fuel tank declared44.4 qt · 42 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.

Güldner A 20 sources

Source
  • Source: Traktorenlexikon, “Güldner A 20”

Lanz D 3506 sources

Source
  • Source: Traktorenlexikon, “Lanz D 3506/3507”