Ford 6600 (A) vs Renault 781-4 (S)

9 material differences · fewer than 12

Tractor one

1975–1981

No measured PTO figure

Tractor two

1977–1985

No measured PTO figure

Which should you choose?

Read our verdict on the 6600 (A) and the 781-4 (S) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

9 material differences · 5 fields identical or within 5%, which is not counted as material

Ford 6600 (A) and Renault 781-4 (S), field by field
Field	6600 (A)	781-4 (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 ends declared	4,740 lb · 2,150 kg	8,201 lb · 3,720 kg	+73% 781-4 (S)
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	7,165 lb · 3,250 kg	7,639 lb · 3,465 kg	+7% 781-4 (S)
Wheelbase declared	99.4 in · 2,524 mm	95.6 in · 2,428 mm	—
Length declared	143.7 in · 3,651 mm	162.2 in · 4,120 mm	+13% 781-4 (S)
Width declared	68.9 in · 1,750 mm	74.2 in · 1,885 mm	+8% 781-4 (S)
Height declared	100.0 in · 2,540 mm	106.3 in · 2,700 mm	+6% 781-4 (S)
Ground clearance declared	17.7 in · 450 mm	15.0 in · 380 mm	+18% 6600 (A)
Turning radius, braked declared	10.6 ft · 3.22 m	14.6 ft · 4.45 m	+38% 781-4 (S)
Fuel tank declared	79.8 qt · 75.5 L	81.4 qt · 77.0 L	—

Source

Source