Hanomag Robust 901 A (S) vs Renault 921

11 material differences · fewer than 12

Tractor one

1969–1970

No measured PTO figure

Tractor two

1977–1980

No measured PTO figure

Which should you choose?

Read our verdict on the Robust 901 A (S) and the 921 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

11 material differences · 4 fields identical or within 5%, which is not counted as material

Hanomag Robust 901 A (S) and Renault 921, field by field
Field	Robust 901 A (S)	921	Gap
Engine
Engine power, claimed claimed	91 hp	90.8 hp	—
Engine declared	Hanomag D162 R2	MWM D 227-6	differs
Displacement declared	4.71 L	5.66 L	+20% 921
Maximum torque declared	207 lb·ft · 281 N·m	249 lb·ft · 337 N·m	+20% 921
Transmission
Top speed declared	12.3–16.9 mph · 19.87–27.15 km/h	15.5 mph · 25 km/h	differs
Clutch declared	Double clutch for transmission and PTO	Dry LuK double clutch	differs
Hydraulics & hitch
Pump flow declared	8.5 gpm · 32 L/min	—	—
Pressure declared	—	2,321 psi · 160 bar	—
Three-point lift at ends declared	—	10,119 lb · 4,590 kg	—
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	8,223–8,885 lb · 3,730–4,030 kg	8,488 lb · 3,850 kg	—
Wheelbase declared	97.4–98.8 in · 2,475–2,510 mm	105.0 in · 2,668 mm	differs
Length declared	157.1 in · 3,990 mm	172.5 in · 4,382 mm	+10% 921
Width declared	79.3–84.6 in · 2,015–2,150 mm	77.0 in · 1,955 mm	differs
Height declared	75.2 in · 1,910 mm	108.9 in · 2,765 mm	+45% 921
Ground clearance declared	12.6 in · 320 mm	17.1 in · 435 mm	+36% 921
Turning radius, braked declared	13.5 ft · 4.10 m	12.9 ft · 3.92 m	—
Fuel tank declared	132.1 qt · 125 L	123.6 qt · 117.0 L	+7% Robust 901 A (S)

Source

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