Introduction
Nuffield DM-4 Utility Tractor
The Nuffield DM-4 is a two-wheel drive utility tractor produced between 1950 and 1961. Designed for general agricultural tasks, this model is recognized for its mechanical simplicity and robust construction, characteristic of the post-war era of mechanization.
Engine and Performance
The tractor is powered by a Perkins P4TA four-cylinder diesel engine with a displacement of 192.2 cubic inches (3.2 liters). The engine features liquid cooling and an oil bath air cleaner to ensure operational longevity. It operates at a rated speed of 2000 RPM, delivering a claimed drawbar power of 40.5 hp (30.2 kW) and a belt power of 45 hp (33.6 kW).
Transmission and Drivetrain
The drivetrain consists of a gear-type transmission providing 5 forward speeds and 1 reverse gear. The power is delivered to the rear wheels via spur gear final drives. The machine is equipped with independent mechanical contracting band brakes, allowing for precise control and maneuverability in field conditions.
Chassis and Dimensions
The DM-4 features an open operator station with a standard Type I rear hitch for implement attachment. The tractor has an operating weight of 2061 kg (4545 lbs) and is fitted with a flange rear axle. The standard tire configuration consists of 6.00x16 agricultural tires on the front and 11.00x36 agricultural tires on the rear, providing the necessary traction for standard utility work.
Conclusion
The Nuffield DM-4 serves as a practical utility tractor, suited for small to medium-scale agricultural operations requiring consistent, manageable power. Its straightforward mechanical design and reliance on the proven Perkins P4TA power unit make it a common choice for collectors and small-scale farmers prioritizing ease of maintenance.
Production Information of Nuffield, DM-4
- Utility tractor
| Manufacturer | Nuffield |
|---|
Dimension and Tires Information of Nuffield, DM-4
- Flange rear axle
| Operating weight | 4545 lbs [2061 kg] |
|---|
| Ag front | 6.00x16 |
|---|---|
| Ag rear | 11.00x36 |
Engine Specifications of Nuffield, DM-4
- Perkins P4TA
- Liquid-cooled
- Diesel
- 4-cylinder
| Air cleaner | Oil bath |
|---|---|
| Displacement | 192.2 ci [3.2 L] |
| Compression | 22:1 |
| Bore/Stroke | 3.50x5.00 inches [89 x 127 mm] |
| Starter volts | 12 |
| Rated RPM | 2000 |
Transmission Information of Nuffield, DM-4
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
Mechanical Specs of Nuffield, DM-4
- Two-wheel drive
- Open operator station.
- Independent mechanical contracting band brakes
| Final drives | Spur gear |
|---|
Power Information of Nuffield, DM-4
| Drawbar (claimed) | 40.5 hp [30.2 kW] |
|---|---|
| Belt (claimed) | 45 hp [33.6 kW] |
Three-Point Hitch of Nuffield, DM-4
| Rear Type | I |
|---|
Where it sits
With 50 hp[B] HP, the Nuffield DM-4 sits between 3/45 (45 HP) and 4/60 (60 HP) in Nuffield's range. Its power puts it in the 74th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Nuffield DM-4 have?
The Nuffield DM-4 delivers 50 hp[B] HP.
What years was the Nuffield DM-4 produced?
The Nuffield DM-4 was produced in 1950-1961.
What engine does the Nuffield DM-4 have?
The Nuffield DM-4 is powered by a Diesel, 4-cylinder engine.
What transmission does the Nuffield DM-4 use?
The Nuffield DM-4 uses a Gear transmission.
How much does the Nuffield DM-4 weigh?
The Nuffield DM-4 weighs 4545 lbs [2061 kg].
Is the Nuffield DM-4 4WD?
The Nuffield DM-4 is available in 2WD.