Deutz-Fahr DX 3.80 AS vs International Harvester 666
11 material differences · fewer than 12
Which should you choose?
We will not advise between these two machines, because the drive differs (4WD; 2WD); they were not built in overlapping years (1985–1990; 1972–1976). 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
11 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | DX 3.80 AS | 666 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 74 hp | 66.1 hp | +12% DX 3.80 AS |
| Engine declared | KHD F4L 913 | INTERNATIONAL HARVESTER C-291 | differs |
| Displacement declared | 4.09 L | — | — |
| Maximum torque declared | 192 lb·ft · 260 N·m | — | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6 mph · 30 km/h | — |
| Clutch declared | Independent dry double clutch | Pedal-operated dry single-plate clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | — | — |
| Pump flow declared | 10.6 gpm · 40.0 L/min | 12.0 gpm · 45.5 L/min | +14% 666 |
| Pressure declared | 3,481 psi · 240 bar | — | — |
| Three-point lift at ends declared | 5,291 lb · 2,400 kg | — | — |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 7,275 lb · 3,300 kg | 8,199 lb · 3,719 kg | +13% 666 |
| Maximum permissible mass declared | 8,818 lb · 4,000 kg | — | — |
| Wheelbase declared | 88.6 in · 2,250 mm | 103.0 in · 2,616 mm | +16% 666 |
| Length declared | 148.8 in · 3,780 mm | 161.0 in · 4,089 mm | +8% 666 |
| Width declared | 74.4 in · 1,890 mm | 87.0 in · 2,210 mm | +17% 666 |
| Height declared | 92.9 in · 2,360 mm | 77.0 in · 1,956 mm | +21% DX 3.80 AS |
| Ground clearance declared | 13.4 in · 340 mm | 21.0 in · 533 mm | +57% 666 |
| Turning radius, braked declared | — | 12.0 ft · 3.66 m | — |
| Fuel tank declared | 100.4 qt · 95 L | 123.9 qt · 117.3 L | +23% 666 |
Deutz-Fahr DX 3.80 AS sources
Source
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.80 AS”
- Source: Traktorenlexikon, “Deutz-Fahr DX 3.90”
International Harvester 666 sources
Source
- Source: Traktorenlexikon, “IHC 666”
- Source: Traktorenlexikon, “Farmall Farmall 756”
- Source: Traktorenlexikon, “Farmall Farmall 666”