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Nuffield DM-4

Nuffield DM-4 tractor
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The Nuffield DM-4 is a utility tractor produced from 1950 to 1961 by Nuffield. It features a Perkins 3.2L 4-cylinder liquid-cooled diesel engine with a 5-speed gear transmission. The tractor delivers 40.5 hp at the drawbar and 45 hp at the belt. It has a two-wheel drive with spur gear final drives and independent mechanical contracting band brakes. The operating weight is 4545 lbs with front tires sized 6.00x16 and rear tires 11.00x36. The tractor has an open operator station and a rear type I hitch.
Nuffield DM-4Nuffield tractorutility tractorPerkins diesel engine5-speed transmissiontractor specifications
Power50 hp[B]
Founded1950 - 1961
ModelDM-4

Technical Specifications

Detailed specifications and technical data for Nuffield DM-4

Power

Belt (claimed):45 hp (33.6 kW)
Drawbar (claimed):40.5 hp (30.2 kW)

Engine

Type:diesel
Model:Perkins P4TA
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:2000
Air cleaner:oil bath
Bore/Stroke:3.50x5.00 inches (89 x 127 mm)
Compression:22:1
Displacement:192.2 ci (3.2 L)
Starter volts:12

Dimensions

Rear tire:11.00x36
Front tire:6.00x16
Operating weight:4545 lbs (2061 kg)

Mechanical

Drive:Two-wheel drive
Brakes:Independent mechanical contracting band brakes
Final drives:spur gear
Operator station:Open operator station

Production

Type:Utility tractor
Manufacturer:Nuffield
Years produced:1950 - 1961

Transmission

Type:gear
Gears:5 forward and 1 reverse

Tractor hitch

Rear Type:I