14 material differences
Tractor oneDeutz-Fahr DX 851978–1982No measured PTO figureTractor twoFiat 80-66 S (DT)1984–1991No measured PTO figure
Which should you choose?
Read our verdict on the DX 85 and the 80-66 S (DT) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
14 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | DX 85 | 80-66 S (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 79 hp | 79.0 hp | — |
| Engine declared | KHD F5L 912 | FIAT-IVECO 8045.05.206 or 306 | differs |
| Displacement declared | 4.71 L | 3.91 L | +21% DX 85 |
| Maximum torque declared | 208 lb·ft · 282 N·m | 185 lb·ft · 251 N·m | +12% DX 85 |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | Independent dry double clutch | Dry double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 10.5 gpm · 39.6 L/min | 8.7 gpm · 32.8 L/min | +21% DX 85 |
| Pressure declared | 3,046–3,771 psi · 210–260 bar | 3,046 psi · 210 bar | differs |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 9,855 lb · 4,470 kg | 6,173 lb · 2,800 kg | +60% DX 85 |
| Maximum permissible mass declared | 12,346 lb · 5,600 kg | 10,141 lb · 4,600 kg | +22% DX 85 |
| Wheelbase declared | 100.7 in · 2,558 mm | 90.7 in · 2,305 mm | +11% DX 85 |
| Length declared | 171.7 in · 4,360 mm | 139.4 in · 3,540 mm | +23% DX 85 |
| Width declared | 90.7 in · 2,304 mm | 95.3 in · 2,420 mm | — |
| Ground clearance declared | 22.0 in · 560 mm | 22.6 in · 575 mm | — |
| Turning radius, braked declared | 12.8 ft · 3.90 m | 12.0 ft · 3.65 m | +7% DX 85 |
| Fuel tank declared | 126.8 qt · 120 L | 77.1 qt · 73.0 L | +64% DX 85 |
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.
Deutz-Fahr DX 85 sources
Source
- Source: Traktorenlexikon, “Deutz-Fahr DX 85”
Fiat 80-66 S (DT) sources
Source
- Source: Traktorenlexikon, “Fiat 80-66/80-66 DT”