7 material differences · fewer than 12
Tractor oneCase-Steyr M 975 a1995–2004No measured PTO figureTractor twoDeutz-Fahr DX 3.80 AS1985–1990No measured PTO figure
Which should you choose?
Read our verdict on the M 975 a and the DX 3.80 AS → 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 · 5 fields identical or within 5%, which is not counted as material
| Field | M 975 a | DX 3.80 AS | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 74 hp | 74 hp | — |
| Engine declared | MWM 301.88 T | KHD F4L 913 | differs |
| Displacement declared | — | 4.09 L | — |
| Maximum torque declared | — | 192 lb·ft · 260 N·m | — |
| Transmission | |||
| Top speed declared | 18.6–24.9 mph · 30–40 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | Dry double clutch | Independent dry double clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | — | Open centre | — |
| Pump flow declared | 10.9 gpm · 41.4 L/min | 10.6 gpm · 40.0 L/min | — |
| Pressure declared | — | 3,481 psi · 240 bar | — |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,834 lb · 3,100 kg | 7,275 lb · 3,300 kg | +6% DX 3.80 AS |
| Maximum permissible mass declared | — | 8,818 lb · 4,000 kg | — |
| Wheelbase declared | 87.8 in · 2,229 mm | 88.6 in · 2,250 mm | — |
| Length declared | 149.3 in · 3,792 mm | 148.8 in · 3,780 mm | — |
| Width declared | 74.8 in · 1,900 mm | 74.4 in · 1,890 mm | — |
| Ground clearance declared | 15.7 in · 400 mm | 13.4 in · 340 mm | +18% M 975 a |
| Fuel tank declared | 87.7 qt · 83.0 L | 100.4 qt · 95 L | +14% DX 3.80 AS |
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.
Case-Steyr M 975 a sources
- Source: Traktorenlexikon, “Steyr M 975”
Deutz-Fahr DX 3.80 AS sources
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.80 AS”
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.90”