J.I. Case 640 vs Renault 551/551.4

6 material differences · fewer than 12

Tractor one

1960–1969

No measured PTO figure

Tractor two

1972–1986

No measured PTO figure

Which should you choose?

Read our verdict on the 640 and the 551/551.4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

6 material differences · 6 fields identical or within 5%, which is not counted as material

J.I. Case 640 and Renault 551/551.4, field by field
Field	640	551/551.4	Gap
Engine
Engine power, claimed claimed	52.0 hp	54.3 hp	—
Engine declared	—	MWM D 226-3	—
Displacement declared	—	3.12 L	—
Maximum torque declared	—	142 lb·ft · 192 N·m	—
Transmission
Top speed declared	12.4–21.7 mph · 20–35 km/h	15.5 mph · 25 km/h	differs
Clutch declared	—	Dry LuK double clutch	—
Hydraulics & hitch
Pump flow declared	9.3 gpm · 35.2 L/min	7.2 gpm · 27.2 L/min	+29% 640
Three-point lift at ends declared	—	4,497 lb · 2,040 kg	—
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	4,495 lb · 2,039 kg	5,313 lb · 2,410 kg	+18% 551/551.4
Wheelbase declared	79.3 in · 2,013 mm	83.2 in · 2,114 mm	—
Length declared	134.5 in · 3,416 mm	138.7 in · 3,524 mm	—
Width declared	80.7 in · 2,051 mm	64.6 in · 1,640 mm	+25% 640
Height declared	63.5 in · 1,613 mm	94.5 in · 2,400 mm	+49% 551/551.4
Ground clearance declared	20.9 in · 530 mm	17.7 in · 450 mm	+18% 640
Turning radius, braked declared	9.8 ft · 3.00 m	10.3 ft · 3.13 m	—
Fuel tank declared	69.2 qt · 65.5 L	68.7 qt · 65.0 L	—

Source

Source