9 material differences · fewer than 12
Tractor oneDeutz-Fahr DX 3.901984–1989No measured PTO figureTractor twoDeutz-Fahr DX 4.301983–1989No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their power is identical, with the same weight or the same engine, which usually means one machine sold under two names; any difference below comes from how each source describes it. 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 · 5 fields identical or within 5%, which is not counted as material
| Field | DX 3.90 | DX 4.30 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 74 hp | 73.6 hp | — |
| Engine declared | KHD F4L 913 | KHD F4L 913 | — |
| Displacement declared | 4.09 L | 4.09 L | — |
| Maximum torque declared | 192 lb·ft · 260 N·m | 196 lb·ft · 266 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6–24.9 mph · 30–40 km/h | differs |
| Clutch declared | Independent dry double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 11.4 gpm · 43.1 L/min | — | — |
| Pressure declared | 3,481 psi · 240 bar | — | — |
| Three-point lift, at the coupling points declared | 7,275 lb · 3,300 kg | 8,378 lb · 3,800 kg | +15% DX 4.30 |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,923 lb · 3,140 kg | 8,642 lb · 3,920 kg | +25% DX 4.30 |
| Maximum permissible mass declared | 11,023 lb · 5,000 kg | — | — |
| Wheelbase declared | 91.6 in · 2,327 mm | 94.5 in · 2,400 mm | — |
| Length declared | 153.9 in · 3,910 mm | 163.0 in · 4,140 mm | +6% DX 4.30 |
| Width declared | 84.2 in · 2,138 mm | 90.6 in · 2,300 mm | +8% DX 4.30 |
| Height, over the cab declared | 97.2 in · 2,470 mm | 103.0 in · 2,615 mm | +6% DX 4.30 |
| Ground clearance declared | 18.0 in · 457 mm | 16.7 in · 425 mm | +8% DX 3.90 |
| Turning radius, braked declared | — | 13.7 ft · 4.17 m | — |
| Fuel tank declared | 100.4 qt · 95.0 L | 132.1 qt · 125 L | +32% DX 4.30 |
Deutz-Fahr DX 3.90 sources
Source
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.90”
Deutz-Fahr DX 4.30 sources
Source
- Source: Traktorenlexikon, “Deutz-Fahr DX 4.30”
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.90”