The Chamberlain 40K is a tractor with a rated power of 49 hp, which positions it at the lighter end of its class. Built in 1950, it features a 2-cylinder liquid-cooled engine paired with two-wheel drive and a 9-speed gearbox. The tractor's operating weight is 3855 kg, and it is suitable for use on areas of up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
49 hp
Weight
3855 kg
Catalogue coverage
Variants represented
2
Richest spec table
42 rows
Recorded power
49 hp
Recorded weight
3855 kg
Transmissions
9-speed
Production years
1950-1950
Verified variants
0
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Overview
ManufacturerChamberlainReference
Standard-tread tractorReference
Built in Welshpool, AustraliaReference
Two-wheel driveReference
Final drivesbull gearReference
Steeringmechanical - recirculating ballReference
Open operator station.Reference
Engine
Chamberlain 6.0L 2-cyl keroseneReference
Fuel tank104.5 LReference
Aux. fuel15.9 LReference
Engine36.2 kWReference
Belt (claimed)29.8 kWReference
ChamberlainReference
keroseneReference
2-cylinderReference
liquid-cooled horizontally-opposedReference
Displacement6.0 LReference
Bore/Stroke156 x 159 mmReference
Power36.2 kWReference
Cooling systemthermosiphonReference
Rated RPM1200Reference
Starter volts12Reference
Transmission
9-speedReference
Transmissionsliding gearReference
Gears9 forward and 3 reverseReference
PTO & Hydraulics
Rear PTO Type540Reference
Dimensions
Wheelbase210 cmReference
Weight3855 kgReference
Front tire7.50x18Reference
Rear tire15.00x30Reference
Ag front7.50x18Reference
Ag rear15.00x30Reference
Length342 cmReference
Width172 cmReference
Height228 cmReference
40K Serial Numbers
19501Reference
Final403Reference
FAQ: How to read a serial number table.Reference
Capacities
Diameter33 cmReference
Width17 cmReference
RPM810Reference
Speed835.15 meters/minReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
