Bührer RP-21 Super (A) vs Renault 74-14 RS

13 material differences

Tractor one

1969–1975

No measured PTO figure

Tractor two

1984–1987

No measured PTO figure

Which should you choose?

Read our verdict on the RP-21 Super (A) and the 74-14 RS → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

Bührer RP-21 Super (A) and Renault 74-14 RS, field by field
Field	RP-21 Super (A)	74-14 RS	Gap
Engine
Engine power, claimed claimed	71 hp	74.0 hp	—
Engine declared	Perkins A 4.248	MWM D 226-4	differs
Displacement declared	4.07 L	4.15 L	—
Maximum torque declared	212 lb·ft · 287 N·m	192 lb·ft · 260 N·m	+10% RP-21 Super (A)
Transmission
Top speed declared	15.5 mph · 25 km/h	18.6 mph · 30 km/h	+20% 74-14 RS
Clutch declared	—	Dry LuK double clutch	—
Hydraulics & hitch
Pump flow declared	5.2 gpm · 19.5 L/min	10.5 gpm · 39.9 L/min	+105% 74-14 RS
Pressure declared	2,845 psi · 196 bar	1,595 psi · 110 bar	+78% RP-21 Super (A)
Three-point lift at ends declared	4,850 lb · 2,200 kg	3,704 lb · 1,680 kg	+31% RP-21 Super (A)
Rear PTO speeds declared	540 rpm	540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	5,807 lb · 2,634 kg	7,672 lb · 3,480 kg	+32% 74-14 RS
Wheelbase declared	84.5 in · 2,147 mm	94.1 in · 2,390 mm	+11% 74-14 RS
Length declared	132.3 in · 3,360 mm	159.4 in · 4,049 mm	+21% 74-14 RS
Width declared	72.8 in · 1,850 mm	78.0 in · 1,980 mm	+7% 74-14 RS
Height declared	67.7 in · 1,720 mm	102.8 in · 2,610 mm	+52% 74-14 RS
Ground clearance declared	16.1 in · 410 mm	—	—
Turning radius, braked declared	10.6 ft · 3.23 m	16.7 ft · 5.10 m	+58% 74-14 RS
Fuel tank declared	—	114.1 qt · 108.0 L	—

Source

Source