Fiat 45-R vs Nuffield DM-4

9 material differences · fewer than 12

Tractor one

from 1952

No measured PTO figure

Tractor two

1950–1954

No measured PTO figure

Which should you choose?

Read our verdict on the 45-R and the DM-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

Fiat 45-R and Nuffield DM-4, field by field
Field	45-R	DM-4	Gap
Engine
Engine power, claimed claimed	44.4 hp	44.9 hp	—
Engine declared	O.M.-FIAT CO 1D-45/Var. 10	PERKINS P-4	differs
Displacement declared	4.16 L	3.15 L	+32% 45-R
Maximum torque declared	167 lb·ft · 226 N·m	130 lb·ft · 176 N·m	+28% 45-R
Transmission
Top speed declared	9.9 mph · 16 km/h	17.4 mph · 28 km/h	+75% DM-4
Clutch declared	Pedal-operated dry single-plate clutch	—	—
Hydraulics & hitch
Pump flow declared	5.3 gpm · 20.0 L/min	7.2 gpm · 27.3 L/min	+37% DM-4
Three-point lift at ends declared	2,094 lb · 950 kg	—	—
Rear PTO speeds declared	540 rpm	540 rpm	—
Weight & dimensions
Unladen weight declared	5,071 lb · 2,300 kg	4,996 lb · 2,266 kg	—
Wheelbase declared	74.8 in · 1,900 mm	78.0 in · 1,981 mm	—
Length declared	116.3 in · 2,955 mm	121.5 in · 3,086 mm	—
Width declared	60.4 in · 1,535 mm	69.0 in · 1,753 mm	+14% DM-4
Height declared	74.6 in · 1,895 mm	80.7 in · 2,051 mm	+8% DM-4
Ground clearance declared	15.7 in · 400 mm	17.0 in · 432 mm	+8% DM-4
Turning radius, braked declared	10.8 ft · 3.30 m	—	—
Fuel tank declared	53.9 qt · 51.0 L	67.2 qt · 63.6 L	+25% DM-4

Source

Source