Nuffield PM-4 tractor specifications

1950 - 1957

1950 - 1957 Utility tractor

Production

Production Manufacturer:Nuffield
Type:Utility tractor
Factory:Birmingham, England

Variants

Variants PM4:gasoline standard
DM4:diesel standard
PM3V:gasoline tricycle
DM3V:diesel tricycle

1950 - 1957

Utility tractor

Production

Production
Manufacturer:	Nuffield
Type:	Utility tractor
Factory:	Birmingham, England

Variants

Variants
PM4:	gasoline standard
DM4:	diesel standard
PM3V:	gasoline tricycle
DM3V:	diesel tricycle

Nuffield PM-4 Power

Nuffield PM-4 Power
Engine:	40.8 hp 30.4 kW
Drawbar (claimed):	34.2 hp 25.5 kW
Belt (claimed):	43.5 hp 32.4 kW
Drawbar (tested):	33.66 hp 25.1 kW
Belt (tested):	38.4 hp 28.6 kW
power test details ...

Nuffield PM-4 Engine

Nuffield PM-4 Engine
Morris Motors 3.8L 4-cyl gasoline
Fuel tank:	16.8 gal 63.6 L
Aux. fuel:	1.8 gal 6.8 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Brakes:	independent mechanical expanding band
Cab:	Open operator station.
Transmission:	5-speed gear
Transmission details ...

Hydraulics

Hydraulics
Type:	open center
Pressure:	1200 psi 82.7 bar
	2000 psi 137.9 bar (1955 onward)

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540 (1.375)
Engine RPM:	528@1400

Dimensions & Tires

Dimensions & Tires
Wheelbase:	78 inches 198 cm
Weight:	5,307 lbs 2407 kg
Front tire:	6.00-16
Rear tire:	11.00-36
Full dimensions and tires ...

Nuffield PM-4 Power

Nuffield PM-4 Power Engine:40.8 hp
30.4 kW
Drawbar (claimed):34.2 hp
25.5 kW
Belt (claimed):43.5 hp
32.4 kW
Drawbar (tested):33.66 hp
25.1 kW
Belt (tested):38.4 hp
28.6 kW
power test details ...

1950 - 1957

Utility tractor

Nebraska Tractor Test 559

Nebraska Tractor Test 559
Gasoline 5-speed 2WD August 29 - September 8, 1955 Link: Nebraska Tractor Test 559 file
Belt power (max):	38.4 hp 28.6 kW
Belt fuel use (max):	3.9 gal/hour 14.8 l/hour
Drawbar performance
Max power:	33.66 hp 25.1 kW
Gear 3 used for power test.
Max pull:	5216 lbs 2365 kg
Gear 1 used for pull test.

Nuffield PM-4 Engine

Nuffield PM-4 Engine Morris Motors 3.8L 4-cyl gasoline Fuel tank:16.8 gal
63.6 L
Aux. fuel:1.8 gal
6.8 L
Engine details ...

1950 - 1957

Utility tractor

Engine Detail

Engine Detail
Morris Motors
gasoline
4-cylinder
liquid-cooled vertical L-head
Displacement:	230 ci 3.8 L
Bore/Stroke:	3.937x4.724 inches 100 x 120 mm
Power:	40.8 hp 30.4 kW
Air cleaner:	oil bath
Compression:	6:1
Rated RPM:	2000
Torque:	226 lb-ft 306.5 Nm
Torque RPM:	950
Starter volts:	12
Coolant capacity:	18 qts 17.0 L

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Brakes:independent mechanical expanding band
Cab:Open operator station.
Transmission:5-speed gear
Transmission details ...

1950 - 1957

Utility tractor

Transmission

Transmission
Type:	gear
Gears:	5 forward and 1 reverse
Clutch:	280mm dry disc

Speeds

Speeds

Hydraulics

Hydraulics Type:open center
Pressure:1200 psi
82.7 bar
2000 psi
137.9 bar (1955 onward)

Power Take-off (PTO)

Power Take-off (PTO) Rear RPM:540 (1.375)
Engine RPM:528@1400

Dimensions & Tires

Dimensions & Tires Wheelbase:78 inches
198 cm
Weight:5,307 lbs
2407 kg
Front tire:6.00-16
Rear tire:11.00-36
Full dimensions and tires ...

1950 - 1957

Utility tractor

Nuffield PM-4 Tires

Nuffield PM-4 Tires
Ag front:	6.00-16
Ag rear:	11.00-36
Ag front:	7.50-18
Ag rear:	13.00-30
	14.00-30
	9.00-36

Dimensions

Dimensions
Wheelbase:	78 inches 198 cm
Length:	121.7 inches 309 cm
Height (hood):	59.5 inches 151 cm
Height (exhaust):	80.7 inches 204 cm
Operating weight:	5,307 lbs 2407 kg
Ballasted weight:	7,765 lbs 3522 kg
Ground clearance:	21 inches 53 cm (at frame)
Clearance (front axle):	17 inches 43 cm
Clearance (drawbar):	21.4 inches 54 cm
Front tread:	52.8 to 70.9 inches 134 to 180 cm
Rear tread:	53.2 to 88.2 inches 135 to 224 cm