J.I. Case 431 vs Nuffield PM-4

11 material differences · fewer than 12

Tractor one

1960–1969

No measured PTO figure

Tractor two

1951–1957

No measured PTO figure

Which should you choose?

Read our verdict on the 431 and the PM-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

J.I. Case 431 and Nuffield PM-4, field by field
Field	431	PM-4	Gap
Engine
Engine power, claimed claimed	35.0 hp	48.0 hp	+37% PM-4
Engine declared	CASE G-188 D	MORRIS-COMMERCIAL 38 T/V	differs
Displacement declared	3.09 L	3.77 L	+22% PM-4
Maximum torque declared	—	148 lb·ft · 200 N·m	—
Transmission
Top speed declared	12.4–21.7 mph · 20–35 km/h	17.4 mph · 28 km/h	differs
Clutch declared	—	Pedal-operated dry single-plate clutch	—
Hydraulics & hitch
Pump flow declared	8.5 gpm · 32.2 L/min	7.2 gpm · 27.3 L/min	+18% 431
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	3,838 lb · 1,741 kg	4,546 lb · 2,062 kg	+18% PM-4
Wheelbase declared	85.0 in · 2,159 mm	78.0 in · 1,981 mm	+9% 431
Length declared	130.1 in · 3,305 mm	121.5 in · 3,086 mm	+7% 431
Width declared	79.6 in · 2,022 mm	69.0 in · 1,753 mm	+15% 431
Height declared	57.0 in · 1,448 mm	80.7 in · 2,051 mm	+42% PM-4
Ground clearance declared	20.1 in · 510 mm	17.0 in · 432 mm	+18% 431
Turning radius, braked declared	7.9 ft · 2.41 m	—	—
Fuel tank declared	40.8 qt · 38.6 L	67.2 qt · 63.6 L	+65% PM-4

Source

Source