- Rigid chassis
- WhichTractor size: Standard-size
- Not independently tested
- 1948–1957
- 15,245 built
It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
Nuffield M-4 Full specifications
MORRIS-COMMERCIAL 38 T/V/T four-cylinder. The manufacturer claimed 38.0 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
38.0 hp
28.3 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”, claimed
- Weight
- 4,546 lb
- Hyd. flow
- 7.2 gpm
- Top speed
- 17.4 mph
Nuffield M-4 specs: key facts
The Nuffield M-4 was built from 1948 to 1957.
The Nuffield M-4 has a claimed engine power (gross or net not stated) of 28.3 kW (38.0 hp); it has no measured PTO figure.
The Nuffield M-4 is two-wheel drive (2WD).
The Nuffield M-4 has a MORRIS-COMMERCIAL 38 T/V/T engine, a 4-cylinder 3.77 L unit.
The Nuffield M-4 weighs 2,062 kg (4,546 lb) unladen.
The Nuffield M-4 has a dependent rear PTO running at 540 rpm.
The hydraulic pump of the Nuffield M-4 delivers 27.3 L/min (7.2 gpm).
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”

How much horsepower does a M-4 have?
The only figure for the M-4 is 38.0 hp (28.3 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”
What engine is in a M-4?
A M-4 has a MORRIS-COMMERCIAL 38 T/V/T, a 4-cylinder 3.77 L engine.
| Make & model | MORRIS-COMMERCIAL 38 T/V/T |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 230.1 ci · 3.77 L |
| Max torque | 138 lb·ft · 187 N·m @ 1,000 rpm |
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”
How much will a M-4 lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the M-4 are below.
| Pump flow | 7.2 gpm · 27.3 L/min |
|---|---|
| Hitch category | Category 1 |
| Rear PTO | Dependent, transmission-driven, 540 rpm @ 1,400 engine rpm |
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”
What transmission does a M-4 have?
Transmission specifications for the M-4 are below.
| Steering | Mechanical recirculating ball steering |
|---|---|
| Top speed | 17.4 mph · 28 km/h |
Source · Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”
How much does a M-4 weigh?
A M-4 weighs 4,546 lb (2,062 kg) unladen.
| Unladen weight | 4,546 lb · 2,062 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 M 4 / TVO (1948-1954”
Which tractors compare with a M-4?
Within 10% of its 38.0 hp of claimed engine power, the same type, and first built within 15 years of it.
- Nuffield M-338.0 hp engine, claimed · 1948–1954Side by side with the M-4 →
- Renault Super 7 (R 7055)38 hp engine, claimed · 1962–1965Side by side with the M-4 →
- BOLINDER-MUNKTELL BM-3238.5 hp engine, claimed · 1950–1957Side by side with the M-4 →
- Volvo T-3238.5 hp engine, claimed · 1950–1957Side by side with the M-4 →
- International Harvester D-43938.5 hp engine, claimed · 1962–1966Side by side with the M-4 →
- SAME DA 38 (DT)37.4 hp engine, claimed · 1952–1957Side by side with the M-4 →
Everything else people ask
Is a M-4 two-wheel drive or four-wheel drive?
The Nuffield M-4 is two-wheel drive (2WD).
What PTO does a M-4 have?
A M-4 has a dependent 540 rpm rear PTO.
Where this page comes from
Compiled from Traktorenlexikon, “Nuffield Universal M 4 / TVO (1948-1954”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Nuffield Universal M 4 / TVO (1948-1954 — CC BY-SA 4.0, WIKIBOOKS-TL-116022 · revision 993275. Wikibooks contributors (Traktorenlexikon). Original document