Massey Ferguson MF 178 (A) vs Renault 851 (S)

14 material differences

Tractor one

Massey Ferguson MF 178 (A)

1968–1971

No measured PTO figure

Tractor two

Renault 851 (S)

1974–1989

No measured PTO figure

Which should you choose?

We will not advise between these two machines, because 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 · 3 fields identical or within 5%, which is not counted as material

Massey Ferguson MF 178 (A) and Renault 851 (S), field by field
FieldMF 178 (A)851 (S)Gap
Engine
Engine power, claimed claimed71 hp83.9 hp+18% 851 (S)
Engine declaredPerkins A 4.248MWM TD 226-4differs
Displacement declared4.07 L4.16 L
Maximum torque declared206 lb·ft · 279 N·m212 lb·ft · 288 N·m
Transmission
Top speed declared18.6 mph · 30 km/h15.5 mph · 25 km/h+20% MF 178 (A)
Clutch declaredPedal-operated dry double clutchDry LuK double clutchdiffers
Hydraulics & hitch
Pump flow declared4.3 gpm · 16.4 L/min8.9 gpm · 33.7 L/min+105% 851 (S)
Pressure declared3,001 psi · 207 bar2,321 psi · 160 bar+29% MF 178 (A)
Three-point lift at ends declared3,880 lb · 1,760 kg8,201 lb · 3,720 kg+111% 851 (S)
Rear PTO speeds declared540 rpm540/1000 rpmdiffers
Weight & dimensions
Unladen weight declared6,129 lb · 2,780 kg6,647 lb · 3,015 kg+8% 851 (S)
Wheelbase declared84.0 in · 2,134 mm95.6 in · 2,428 mm+14% 851 (S)
Length declared135.8 in · 3,450 mm157.1 in · 3,990 mm+16% 851 (S)
Width declared78.0 in · 1,980 mm73.0 in · 1,855 mm+7% MF 178 (A)
Height declared99.6 in · 2,530 mm106.3 in · 2,700 mm+7% 851 (S)
Ground clearance declared17.3 in · 440 mm15.2 in · 385 mm+14% MF 178 (A)
Turning radius, braked declared11.7 ft · 3.57 m12.1 ft · 3.70 m
Fuel tank declared86.6 qt · 82.0 L81.4 qt · 77.0 L+6% MF 178 (A)

Massey Ferguson MF 178 (A) sources

Source
  • Source: Traktorenlexikon, “Massey Ferguson MF 178”

Renault 851 (S) sources

Source
  • Source: Traktorenlexikon, “Renault 851 R7661”