Wikitractor

Nuffield M4

Production ended · 2WD

Engine power

38 hp

Weight
4,886 lb
Engines
1 tvo
Built
no record
Price new
no record

Power

Engine38 hp unspecified
PTOno record
Drawbar25.4 hp claimed
Belt pulley32.5 hp claimed
Listed power38 hp engine basis

Engines

Morris 3.8L 4-cyl tvotvo · 4 cyl230 ci
Engine details
Morris 3.8L 4-cyl tvo
Bore × stroke
3.94 in × 4.72 in
Rated speed
2,000 rpm
Rated power
38 hp
Torque
138 lb·ft at 1,000 rpm
Cooling
liquid-cooled
Notes
tvo

Transmissions

5-speed geargear5F / 1R

Weight

Weight4,886 lb operating

Dimensions

Wheelbase78 in
Length123 in
Width83 in
Front axle clearance18 in
Rear axle clearance23 in
Front tread, narrowest48 in
Front tread, widest76 in
Rear tread, narrowest53 in
Rear tread, widest88 in

Capacities

Fuel tank19.2 gal
Auxiliary fuel7.2 gal

Hydraulics

Systemopen center
Pump flowno record
Pressure1,000 psi

Hitch

Rear hitch categoryI
Rear lift capacity3,700 lb

PTO

Rear PTOtransmission
Rear PTO speeds540 (1.375)
Engine rpm at PTO speed527@1400

Chassis

Drive2WD
SteeringManual steering
BrakesMechanical drum brakes
CabOpen operator station

Tires

Front6.00-19
Rear11.00-36

Production

FactoriesBirmingham, England
Built byNuffield

Variants

  • M3 tricycle front
  • M4 wide front

Literature

  • The Nuffield Universal Tractor 1949