12 material differences

Tractor oneRenault 651 (S)1972–1986No measured PTO figureTractor twoZETOR 6911/69451977–1980No measured PTO figure

Which should you choose?

Read our verdict on the 651 (S) and the 6911/6945 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

Renault 651 (S) and ZETOR 6911/6945, field by field
Field	651 (S)	6911/6945	Gap
Engine
Engine power, claimed claimed	64.1 hp	64.1 hp	—
Engine declared	MWM D 227-4	ZBROJORKA Z-6901	differs
Displacement declared	3.77 L	3.59 L	—
Maximum torque declared	164 lb·ft · 222 N·m	146 lb·ft · 198 N·m	+12% 651 (S)
Transmission
Top speed declared	15.5 mph · 25 km/h	15.5 mph · 25 km/h	—
Clutch declared	Dry LuK double clutch	Dry double clutch	differs
Hydraulics & hitch
Pump flow declared	6.9 gpm · 26.0 L/min	6.4 gpm · 24.3 L/min	+7% 651 (S)
Pressure declared	2,321 psi · 160 bar	3,336 psi · 230 bar	+44% 6911/6945
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	5,886 lb · 2,670 kg	6,327 lb · 2,870 kg	+7% 6911/6945
Wheelbase declared	88.3 in · 2,242 mm	88.5 in · 2,247 mm	—
Length declared	142.4 in · 3,617 mm	143.9 in · 3,655 mm	—
Width declared	73.2–89.8 in · 1,860–2,280 mm	72.4 in · 1,840 mm	differs
Height, over the cab declared	86.6 in · 2,200 mm	97.4 in · 2,475 mm	+13% 6911/6945
Ground clearance declared	17.7 in · 450 mm	18.9 in · 480 mm	+7% 6911/6945
Turning radius, braked declared	10.8 ft · 3.30 m	11.8 ft · 3.59 m	+9% 6911/6945
Fuel tank declared	68.7 qt · 65.0 L	80.3 qt · 76.0 L	+17% 6911/6945

Source

Source