Skip to contentNuffield M4 Universal tractor at Baytrees Garden Centre - Flickr - mick - Lumix — Mick from Northamptonshire, England, CC BY 2.0. Resized; converted to WebP. · Mick from Northamptonshire, England · CC BY 2.0 commons.wikimedia.org source ↗ Nuffield M4 Universal tractor at Baytrees Garden Centre - Flickr - mick - Lumix — Mick from Northamptonshire, England, CC BY 2.0. Resized; converted to WebP. · Mick from Northamptonshire, England · CC BY 2.0 commons.wikimedia.org source ↗
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Years in Production / 1948–1961
Nuffield
M4
Explore the specifications, hardware, and original references for the Nuffield M4.
38hp
Source index power
2WD Only
Drive
1948–1961
Production years
Nuffield
Manufacturer
M4 / 01
At a glance
Production
Row-Crop tractor
Built in Birmingham, England
- Manufacturer
- Nuffield
Hydraulics
- Type
- open center
- Pressure
- 1000 psi69.0 bar
Hitch
- Rear Type
- I
- Rear Lift
- 3700 lbs1678 kg
Pto
- Rear Pto
- transmission
- Rear Type
- 540 (1.375)
- Engine Rpm
- 527@1400
Belt Pulley
- Diameter
- 10.25 inches26 cm
- Rpm
- 1039
- Speed
- 2902 ft/min884.53 meters/min
Mechanical
Two-wheel drive
Manual steering
Mechanical drum brakes
Open operator station.
M4 / 02
Under the hood
Engine Detail
Morris
tvo
4-cylinder
liquid-cooled
- Displacement
- 230.1 ci3.8 L
- Bore Stroke
- 3.94x4.72 inches100 x 120 mm
- Power
- 38 hp28.3 kW
- Air Cleaner
- oil bath
- Rated Rpm
- 2000
- Idle Rpm
- 600-2000
- Torque
- 138 lb-ft187.1 Nm
- Torque Rpm
- 1000
- Starter Volts
- 12
- Oil Capacity
- 7.8 qts7.4 L
- Coolant Capacity
- 19.2 qts18.2 L
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
Morris 3.8L 4-cyl tvo
- Fuel Tank
- 19.2 gal72.7 L
- Aux Fuel
- 7.2 gal27.3 L
M4 / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 5 forward and 1 reverse
- Clutch
- 280mm mechanical dry disc
- Oil Capacity
- 50.4 qts47.7 L
M4 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 123 in312 cm
- Width
- 83 in210 cm
- Height
- 60.5 in153 cm
- Wheelbase
- 78 in198 cm
- Front tread
- 48 in121 cm
- Rear tread
- 53 in134 cm
Dimensions And Tires
- Wheelbase
- 78 inches198 cm
- Weight
- 4886 lbs2216 kg
- Front Tire
- 6.00-19
- Rear Tire
- 11.00-36
Tires And Tracks
- Front Ag
- 6.00-19
- Rear Ag
- 11.00-36
- Rear Ag
- 9.00-36
M4 / 05