ALLIS-CHALMERS FD-4 vs Renault R-56

10 material differences · fewer than 12

Tractor one

1962–1965

No measured PTO figure

Tractor two

1967–1973

No measured PTO figure

Which should you choose?

Read our verdict on the FD-4 and the R-56 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

10 material differences · 2 fields identical or within 5%, which is not counted as material

ALLIS-CHALMERS FD-4 and Renault R-56, field by field
Field	FD-4	R-56	Gap
Engine
Engine power, claimed claimed	41.4 hp	41.4 hp	—
Engine declared	VENDEUVRE 56	—	—
Transmission
Top speed declared	12.4 mph · 20 km/h	15.5 mph · 25 km/h	+25% R-56
Clutch declared	Pedal operated dry two stage double clutch	Two-stage pedal operated dry Ferodo double clutch	differs
Hydraulics & hitch
Three-point lift at ends declared	1,984 lb · 900 kg	4,409 lb · 2,000 kg	+122% R-56
Rear PTO speeds declared	540/1000 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	4,057 lb · 1,840 kg	4,189 lb · 1,900 kg	—
Wheelbase declared	84.6 in · 2,150 mm	76.0 in · 1,930 mm	+11% FD-4
Length declared	120.1 in · 3,050 mm	128.0 in · 3,250 mm	+7% R-56
Width declared	66.1 in · 1,680 mm	59.1 in · 1,500 mm	+12% FD-4
Height declared	56.7 in · 1,440 mm	63.8 in · 1,620 mm	+13% R-56
Ground clearance declared	18.5 in · 470 mm	16.9 in · 430 mm	+9% FD-4
Turning radius, braked declared	—	10.8 ft · 3.29 m	—
Fuel tank declared	63.4 qt · 60.0 L	58.1 qt · 55.0 L	+9% FD-4

Source

Source