International Harvester 666 vs Renault 781-4 (S)
12 material differences
Which should you choose?
We will not advise between these two machines, because the drive differs (2WD; 4WD); they were not built in overlapping years (1972–1976; 1977–1985). 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
12 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | 666 | 781-4 (S) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 66.1 hp | 77.0 hp | +16% 781-4 (S) |
| Engine declared | INTERNATIONAL HARVESTER C-291 | MWM D 226-4 | differs |
| Displacement declared | — | 4.15 L | — |
| Maximum torque declared | — | 202 lb·ft · 274 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 15.5 mph · 25 km/h | +20% 666 |
| Clutch declared | Pedal-operated dry single-plate clutch | Dry LuK double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 12.0 gpm · 45.5 L/min | 8.5 gpm · 32.0 L/min | +42% 666 |
| Pressure declared | — | 2,321 psi · 160 bar | — |
| Three-point lift at ends declared | — | 8,201 lb · 3,720 kg | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 8,199 lb · 3,719 kg | 7,639 lb · 3,465 kg | +7% 666 |
| Wheelbase declared | 103.0 in · 2,616 mm | 95.6 in · 2,428 mm | +8% 666 |
| Length declared | 161.0 in · 4,089 mm | 162.2 in · 4,120 mm | — |
| Width declared | 87.0 in · 2,210 mm | 74.2 in · 1,885 mm | +17% 666 |
| Height declared | 77.0 in · 1,956 mm | 106.3 in · 2,700 mm | +38% 781-4 (S) |
| Ground clearance declared | 21.0 in · 533 mm | 15.0 in · 380 mm | +40% 666 |
| Turning radius, braked declared | 12.0 ft · 3.66 m | 14.6 ft · 4.45 m | +22% 781-4 (S) |
| Fuel tank declared | 123.9 qt · 117.3 L | 81.4 qt · 77.0 L | +52% 666 |
International Harvester 666 sources
Source
- Source: Traktorenlexikon, “IHC 666”
- Source: Traktorenlexikon, “Farmall Farmall 756”
- Source: Traktorenlexikon, “Farmall Farmall 666”
Renault 781-4 (S) sources
Source
- Source: Traktorenlexikon, “Renault 781-4 R7594”
- Source: Traktorenlexikon, “Fendt Farmer 108 S/SA”