Massey Ferguson MF 178 (A) vs Renault 851-4 (S)
14 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 (1968–1971; 1974–1989). 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
14 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | MF 178 (A) | 851-4 (S) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 71 hp | 83.9 hp | +18% 851-4 (S) |
| Engine declared | Perkins A 4.248 | MWM TD 226-4 | differs |
| Displacement declared | 4.07 L | 4.16 L | — |
| Maximum torque declared | 206 lb·ft · 279 N·m | 212 lb·ft · 288 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 15.5 mph · 25 km/h | +20% MF 178 (A) |
| Clutch declared | Pedal-operated dry double clutch | Dry LuK double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 4.3 gpm · 16.4 L/min | 8.9 gpm · 33.7 L/min | +105% 851-4 (S) |
| Pressure declared | 3,001 psi · 207 bar | 2,321 psi · 160 bar | +29% MF 178 (A) |
| Three-point lift at ends declared | 3,880 lb · 1,760 kg | 8,201 lb · 3,720 kg | +111% 851-4 (S) |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,129 lb · 2,780 kg | 7,573 lb · 3,435 kg | +24% 851-4 (S) |
| Wheelbase declared | 84.0 in · 2,134 mm | 95.6 in · 2,428 mm | +14% 851-4 (S) |
| Length declared | 135.8 in · 3,450 mm | 165.4 in · 4,200 mm | +22% 851-4 (S) |
| Width declared | 78.0 in · 1,980 mm | 73.2 in · 1,860 mm | +6% MF 178 (A) |
| Height declared | 99.6 in · 2,530 mm | 106.1 in · 2,695 mm | +7% 851-4 (S) |
| Ground clearance declared | 17.3 in · 440 mm | 13.0 in · 330 mm | +33% MF 178 (A) |
| Turning radius, braked declared | 11.7 ft · 3.57 m | — | — |
| Fuel tank declared | 86.6 qt · 82.0 L | 81.4 qt · 77.0 L | +6% MF 178 (A) |
Massey Ferguson MF 178 (A) sources
Source
- Source: Traktorenlexikon, “Massey Ferguson MF 178”
Renault 851-4 (S) sources
Source
- Source: Traktorenlexikon, “Renault 851-4 R7664”
- Source: Traktorenlexikon, “Renault 851 R7661”