Tractor · 1950Unverified
Nuffield DM-4 Universal
Nuffield DM-4 Universal — Model year 1950-19541954-1961 · 45 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
45 hp
Max power
29.4 kW
Weight
2522 kg
Hover a source tag to verify
Overview
ManufacturerNuffieldReference
Utility tractorReference
Built in Birmingham, EnglandReference
Two-wheel driveReference
Manual steeringReference
Independent mechanical contracting band brakesReference
Open operator station.Reference
Variants
PM4gasoline standardReference
DM4diesel standardReference
PM3Vgasoline tricycleReference
DM3Vdiesel tricycleReference
Engine
BMC 3.4L 4-cyl dieselReference
Fuel tank63.6 LReference
Engine33.6 kWReference
Drawbar (claimed)30.2 kWReference
Belt (claimed)31.8 kWReference
Drawbar (tested)29.4 kWReference
BMC OEA/2Reference
dieselReference
4-cylinderReference
liquid-cooled vertical I-headReference
Displacement3.4 LReference
Bore/Stroke95 x 120 mmReference
Power33.6 kWReference
Fuel systemdirect injectionReference
Air cleaneroil bathReference
Compression16.5:1Reference
Rated RPM2000Reference
Torque302.8 NmReference
Torque RPM1329Reference
Starter volts12Reference
Oil capacity8.5 LReference
Coolant capacity15.3 LReference
Power at rated engine speed33.8 kWReference
Max power29.4 kWReference
Transmission
5-speed gearReference
TypegearReference
Gears5 forward and 1 reverseReference
Clutch280mm dry discReference
PTO & Hydraulics
PTO (tested)33.8 kWReference
Rear TypeIReference
Rear PTO Type540 (1.375)Reference
Engine RPM528@1400Reference
Dimensions
Wheelbase198 cmReference
Weight2522 kgReference
Front tire6.00-16Reference
Rear tire11.00-36Reference
Ag front6.00-16Reference
Ag rear11.00-36Reference
Ag front7.50-18Reference
Ag rear13.00-30Reference
Ag rear14.00-30Reference
Ag rear9.00-36Reference
Length309 cmReference
Height (hood)151 cmReference
Height (exhaust)204 cmReference
Operating weight2522 kgReference
Ballasted weight3686 kgReference
Ground clearance53 cmReference
Clearance (front axle)43 cmReference
Clearance (drawbar)54 cmReference
Front tread134 to 180 cmReference
Rear tread135 to 224 cmReference
Test results
Morris diesel 5-speed 2WDAugust 27 - September 5, 1955Link: Nebraska Tractor Test 558 fileReference
PTO performanceReference
Fuel use11.4 l/hourReference
Drawbar performanceReference
Gear 3 used for power test.Reference
Max pull2436 kgReference
Gear 1 used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.