- Vehicle type: unspecified
- Rigid chassis
- WhichTractor size: Standard-size
- No lab test on file
- 1950–1954
- 6,130 built
It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
We looked and the record does not say what this machine is. How we decide what a machine is
Nuffield DM-4 specs: hp, weight, years
PERKINS P-4 four-cylinder diesel. The manufacturer claimed 44.9 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
44.9 hp
33.5 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 4,996 lb
- Hyd. flow
- 7.2 gpm
- Top speed
- 17.4 mph
Nuffield DM-4 specs: key facts
The Nuffield DM-4 was built from 1950 to 1954.
The Nuffield DM-4 has a claimed engine power (gross or net not stated) of 33.5 kW (44.9 hp); it has no measured PTO figure.
The Nuffield DM-4 is two-wheel drive (2WD).
The Nuffield DM-4 has a PERKINS P-4 engine, a 4-cylinder 3.15 L diesel unit.
The Nuffield DM-4 weighs 2,266 kg (4,996 lb) unladen.
The Nuffield DM-4 has a dependent rear PTO running at 540 rpm.
The hydraulic pump of the Nuffield DM-4 delivers 27.3 L/min (7.2 gpm).
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
How does the DM-4 compare with its class?
- Limitation:
Five forward gears is low for its class — 38% below the median of 8 across the 320 machines within 10% of its power that hold this figure.
Derived by WhichTractor from 323 comparable records. How we work this out
How much horsepower does a DM-4 have?
The only figure for the DM-4 is 44.9 hp (33.5 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
What engine is in a DM-4?
A DM-4 has a PERKINS P-4, a 4-cylinder 3.15 L diesel engine.
| Make & model | PERKINS P-4 |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 192.4 ci · 3.15 L |
| Max torque | 130 lb·ft · 176 N·m @ 1,300 rpm |
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
How much will a DM-4 lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the DM-4 are below.
| Pump flow | 7.2 gpm · 27.3 L/min |
|---|---|
| Rear PTO | Dependent, transmission-driven, 540 rpm |
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
What transmission does a DM-4 have?
Transmission specifications for the DM-4 are below.
| Steering | Mechanical recirculating ball steering |
|---|---|
| Top speed | 17.4 mph · 28 km/h |
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
How much does a DM-4 weigh?
A DM-4 weighs 4,996 lb (2,266 kg) unladen.
| Unladen weight | 4,996 lb · 2,266 kg |
|---|---|
| Wheelbase | 78.0 in · 1,981 mm |
| Length | 121.5 in · 3,086 mm |
| Width | 69.0 in · 1,753 mm |
| Height | 80.7 in · 2,051 mm |
| Ground clearance | 17.0 in · 432 mm |
| Front track | 52.8–71.3 in · 1,340–1,810 mm |
| Rear track | 53.0–77.0 in · 1,346–1,956 mm |
Source · Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”
What oil does a DM-4 take, and how much?
A DM-4 engine takes 9.6 qt (9.1 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 9.6 qt · 9.1 LSource: Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)” · single source, not independently verified |
| Transmission | 57.6 qt · 54.5 LSource: Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)” · single source, not independently verified |
| Cooling system | 18.0 qt · 17.0 LSource: Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a DM-4?
Within 10% of its 44.9 hp of claimed engine power, the same type, and first built within 15 years of it.
- International Harvester Farmall 50445.3 hp engine, claimed · 1961–1968Side by side with the DM-4 →
- VALMET 56545.3 hp engine, claimed · 1964–1968Side by side with the DM-4 →
- Massey Ferguson 14545.3 hp engine, claimed · from 1965Side by side with the DM-4 →
- Renault Super 7D45 hp engine, claimed · 1965–1969Side by side with the DM-4 →
- Fiat 45-R44.4 hp engine, claimed · from 1952Side by side with the DM-4 →
- Fordson E 27 N-D44.4 hp engine, claimed · 1948–1952Side by side with the DM-4 →
Common questions about the Nuffield DM-4
Is a DM-4 two-wheel drive or four-wheel drive?
The Nuffield DM-4 is two-wheel drive (2WD).
What PTO does a DM-4 have?
A DM-4 has a dependent 540 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “Nuffield Universal DM 4 / Diesel (1950-1954)”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Nuffield Universal DM 4 / Diesel (1950-1954) — CC BY-SA 4.0, WIKIBOOKS-TL-116024 · revision 993276. Wikibooks contributors (Traktorenlexikon). Original document