International Harvester Farmall M/MV vs Nuffield PM-4

11 material differences · fewer than 12

Tractor one

1939–1952

No measured PTO figure

Tractor two

1951–1957

No measured PTO figure

Which should you choose?

Read our verdict on the Farmall M/MV 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

International Harvester Farmall M/MV and Nuffield PM-4, field by field
Field	Farmall M/MV	PM-4	Gap
Engine
Engine power, claimed claimed	36.5 hp	48.0 hp	+32% PM-4
Engine declared	INTERNATIONAL HARVESTER C-248	MORRIS-COMMERCIAL 38 T/V	differs
Displacement declared	4.06 L	3.77 L	+8% Farmall M/MV
Maximum torque declared	—	148 lb·ft · 200 N·m	—
Transmission
Top speed declared	16.2 mph · 26 km/h	17.4 mph · 28 km/h	+8% PM-4
Clutch declared	Pedal-operated dry Rockford single-plate clutch type 11 inches	Pedal-operated dry single-plate clutch	differs
Hydraulics & hitch
Pump flow declared	—	7.2 gpm · 27.3 L/min	—
Rear PTO speeds declared	537 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	4,910 lb · 2,227 kg	4,546 lb · 2,062 kg	+8% Farmall M/MV
Wheelbase declared	88.7 in · 2,254 mm	78.0 in · 1,981 mm	+14% Farmall M/MV
Length declared	133.1 in · 3,381 mm	121.5 in · 3,086 mm	+10% Farmall M/MV
Width declared	84.5 in · 2,146 mm	69.0 in · 1,753 mm	+22% Farmall M/MV
Height declared	78.3 in · 1,988 mm	80.7 in · 2,051 mm	—
Ground clearance declared	25.5 in · 648 mm	17.0 in · 432 mm	+50% Farmall M/MV
Turning radius, braked declared	6.8 ft · 2.08 m	—	—
Fuel tank declared	84.0 qt · 79.5 L	67.2 qt · 63.6 L	+25% Farmall M/MV

Source

Source