Nuffield Universal M4

Production: 1948 - 1961  

Production
Manufacturer:	Nuffield
Type:	Row-Crop tractor
Factory:	Birmingham, England

Variants

tricycle front

wide front

Nuffield M4 Power
Engine:	38 hp 28.3 kW
Drawbar (claimed):	25.4 hp 18.9 kW
Belt (claimed):	32.5 hp 24.2 kW

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

Hydraulics
Type:	open center
Pressure:	1000 psi 69.0 bar

Tractor hitch
Rear Type:	I
Rear lift:	3700 lbs 1678 kg

Power Take-off (PTO)
Rear PTO:	transmission
Rear RPM:	540 (1.375)
Engine RPM:	527@1400

Engine Detail
Morris
tvo
4-cylinder
liquid-cooled
Displacement:	230.1 ci 3.8 L
Bore/Stroke:	3.94x4.72 inches 100 x 120 mm
Power:	38 hp 28.3 kW
Air cleaner:	oil bath
Rated RPM:	2000
Idle RPM:	600-2000
Torque:	138 lb-ft 187.1 Nm
Torque RPM:	1000
Starter volts:	12
Oil capacity:	7.8 qts 7.4 L
Coolant capacity:	19.2 qts 18.2 L

Transmission
Type:	gear
Gears:	5 forward and 1 reverse
Clutch:	280mm mechanical dry disc
Oil capacity:	50.4 qts 47.7 L

Dimensions
Wheelbase:	78 inches 198 cm
Length:	123 inches 312 cm
Width:	83 inches 210 cm *Width at rear axles.
Height (hood):	60.5 inches 153 cm
Height (exhaust):	82 inches 208 cm
Operating weight:	4886 lbs 2216 kg
Clearance (front axle):	18 inches 45 cm
Clearance (rear axle):	23 inches 58 cm
Front tread:	48 to 76 inches 121 to 193 cm
Rear tread:	53 to 88 inches 134 to 223 cm