J.I. Case 401 vs J.I. Case 640

9 material differences · fewer than 12

Tractor one

1955–1957

No measured PTO figure

Tractor two

1960–1969

No measured PTO figure

Which should you choose?

Read our verdict on the 401 and the 640 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

9 material differences · 1 fields identical or within 5%, which is not counted as material

J.I. Case 401 and J.I. Case 640, field by field
Field	401	640	Gap
Engine
Engine power, claimed claimed	49.3 hp	52.0 hp	+5% 640
Transmission
Top speed declared	12.4 mph · 20 km/h	12.4–21.7 mph · 20–35 km/h	differs
Clutch declared	Pedal-operated single-plate clutch	—	—
Hydraulics & hitch
Pump flow declared	12.0 gpm · 45.4 L/min	9.3 gpm · 35.2 L/min	+29% 401
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	6,583 lb · 2,986 kg	4,495 lb · 2,039 kg	+46% 401
Wheelbase declared	91.5 in · 2,324 mm	79.3 in · 2,013 mm	+15% 401
Length declared	142.6 in · 3,622 mm	134.5 in · 3,416 mm	+6% 401
Width declared	85.2 in · 2,164 mm	80.7 in · 2,051 mm	+6% 401
Height declared	74.4 in · 1,890 mm	63.5 in · 1,613 mm	+17% 401
Ground clearance declared	24.2 in · 615 mm	20.9 in · 530 mm	+16% 401
Turning radius, braked declared	—	9.8 ft · 3.00 m	—
Fuel tank declared	84.0 qt · 79.5 L	69.2 qt · 65.5 L	+21% 401

Source

Source