7 material differences · fewer than 12
Tractor oneHermann Lanz L 25 a1942–1944No measured PTO figureTractor twoLanz D 7511/31935–1936No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (47%); they were not built in overlapping years (1942–1944; 1935–1936). 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
7 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | L 25 a | D 7511/3 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 24.4 hp | 24.5 hp | — |
| Engine declared | Deutz GF2M 115 or wahlweise | — | — |
| Displacement declared | 3.98 L | — | — |
| Transmission | |||
| Top speed declared | 12.1 mph · 19.4 km/h | 9.3 mph · 15.0 km/h | +29% L 25 a |
| Clutch declared | single-plate dry clutch from Fichtel & Sachs | Pedal operated three-jaw clutch with clutch brake | differs |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 540 rpm | 760 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,850 lb · 2,200 kg | 7,143 lb · 3,240 kg | +47% D 7511/3 |
| Wheelbase declared | 80.7 in · 2,050 mm | 64.8 in · 1,645 mm | +25% L 25 a |
| Length declared | 112.6 in · 2,860 mm | 107.7 in · 2,735 mm | — |
| Width declared | 59.1 in · 1,500 mm | 63.4 in · 1,610 mm | +7% D 7511/3 |
| Ground clearance declared | 11.8 in · 300 mm | 8.5 in · 215 mm | +40% L 25 a |
| Fuel tank declared | — | 52.8 qt · 50 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.
Hermann Lanz L 25 a sources
- Source: Traktorenlexikon, “HELA L 25 a Holzgas”
Lanz D 7511/3 sources
- Source: Traktorenlexikon, “Lanz D 7511/3”