7 material differences · fewer than 12
Tractor oneJohn Deere Model A1934–1952No measured PTO figureTractor twoSchlüter GZA 251941–1947No measured PTO figure
Which should you choose?
Read our verdict on the Model A and the GZA 25 → 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 · 1 fields identical or within 5%, which is not counted as material
| Field | Model A | GZA 25 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 24.7 hp | 24.5 hp | — |
| Transmission | |||
| Top speed declared | 6.2–12.4 mph · 10–20 km/h | 10.7 mph · 17.3 km/h | differs |
| Clutch declared | — | Single plate dry clutch from Fichtel and Sachs type K 16 Z | — |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 546 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,059–5,986 lb · 1,841–2,715 kg | 4,850 lb · 2,200 kg | differs |
| Wheelbase declared | 90.0 in · 2,286 mm | 70.5 in · 1,790 mm | +28% Model A |
| Length declared | 124.0–134.0 in · 3,150–3,404 mm | 126.0 in · 3,200 mm | differs |
| Width declared | 82.7–86.2 in · 2,100–2,190 mm | 63.0 in · 1,600 mm | differs |
| Ground clearance declared | 26.0 in · 660 mm | 13.8 in · 350 mm | +89% Model A |
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.
John Deere Model A sources
- Source: Traktorenlexikon, “John Deere Modell A”
Schlüter GZA 25 sources
- Source: Traktorenlexikon, “Schlüter GZA 25”