9 material differences · fewer than 12
Tractor oneInternational Harvester FS1940–1949No measured PTO figureTractor twoLanz D 75211934–1935No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (78%); they were not built in overlapping years (1940–1949; 1934–1935). 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
9 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | FS | D 7521 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 19.6 hp | 19.6 hp | — |
| Transmission | |||
| Top speed declared | 3.9 mph · 6.2 km/h | 9.9 mph · 15.9 km/h | +156% D 7521 |
| Clutch declared | Single-disc dry clutch | Pedal operated three-shoe clutch including clutch brake | differs |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 550 | 760 | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,770 lb · 1,710 kg | 6,724 lb · 3,050 kg | +78% D 7521 |
| Wheelbase declared | 78.3 in · 1,990 mm | 64.8 in · 1,645 mm | +21% FS |
| Length declared | 126.0 in · 3,200 mm | 115.6 in · 2,935 mm | +9% FS |
| Width declared | 74.8 in · 1,900 mm | 66.9 in · 1,700 mm | +12% FS |
| Ground clearance declared | 15.0 in · 380 mm | 9.6 in · 245 mm | +55% FS |
| Fuel tank declared | 58.1 qt · 55 L | 52.8 qt · 50 L | +10% FS |
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.
International Harvester FS sources
- Source: Traktorenlexikon, “IHC FS”
Lanz D 7521 sources
- Source: Traktorenlexikon, “Lanz D 7521/2”