7 material differences · fewer than 12
Tractor oneFord 6600 (A)1975–1981No measured PTO figureTractor twoRenault 781 (S)1977–1985No measured PTO figure
Which should you choose?
Read our verdict on the 6600 (A) and the 781 (S) → 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 · 6 fields identical or within 5%, which is not counted as material
| Field | 6600 (A) | 781 (S) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 77.0 hp | 77.0 hp | — |
| Engine declared | Ford 256 DF | MWM D 226-4 | differs |
| Displacement declared | — | 4.15 L | — |
| Maximum torque declared | — | 202 lb·ft · 274 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | — | Dry LuK double clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 9.2 gpm · 35.0 L/min | 8.5 gpm · 32.0 L/min | +9% 6600 (A) |
| Pressure declared | — | 2,321 psi · 160 bar | — |
| Three-point lift, at the coupling points declared | 4,740 lb · 2,150 kg | 8,201 lb · 3,720 kg | +73% 781 (S) |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 7,165 lb · 3,250 kg | 7,518 lb · 3,410 kg | — |
| Wheelbase declared | 99.4 in · 2,524 mm | 95.6 in · 2,428 mm | — |
| Length declared | 143.7 in · 3,651 mm | 157.1 in · 3,990 mm | +9% 781 (S) |
| Width declared | 68.9–87.0 in · 1,750–2,210 mm | 74.2–96.3 in · 1,885–2,445 mm | differs |
| Ground clearance declared | 17.7 in · 450 mm | 15.2 in · 385 mm | +17% 6600 (A) |
| Turning radius, braked declared | 10.6 ft · 3.22 m | 11.7 ft · 3.56 m | +11% 781 (S) |
| Fuel tank declared | 79.8 qt · 75.5 L | 81.4 qt · 77.0 L | — |
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.
Ford 6600 (A) sources
- Source: Traktorenlexikon, “Ford 6600”
Renault 781 (S) sources
- Source: Traktorenlexikon, “Renault 781 R7591”
- Source: Traktorenlexikon, “Fendt Farmer 108 S/SA”