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Chamberlain 40KA vs Chamberlain 45KA
Verdict: Chamberlain 40KA vs Chamberlain 45KA
The Chamberlain 40KA and the Chamberlain 45KA are both tractors — here is how they stack up on the figures that matter. Chamberlain 40KA is the lighter machine (3,855 kg vs 4,082 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Chamberlain 40KA holds more fuel (104.5 L vs 81.8 L) for longer stints between fills. Chamberlain 45KA is the newer design (1954 vs 1949). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Chamberlain
62
Fit score
Clear
Chamberlain
79
Fit score
Best match
Clear
Rated power
49 hp
null hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ChamberlainReference
ChamberlainReference
liquid-cooled horizontally-opposedReference
liquid - thermosiphon-cooledReference
Total built
1,484Reference
108Reference
Final drives
bull gearReference
—
Steering
mechanical - recirculating ballReference
mechanical - recirculating ballReference
Variants
40K
wide gear ratioReference
—
40KA
close gear ratioReference
—
Engine
Fuel tank
104.5 LReference
81.8 LReference
Aux. fuel
15.9 LReference
9.1 LReference
Engine
36.2 kWReference
—
Belt (claimed)
29.8 kWReference
—
Displacement
6.0 LReference
6.0 LReference
Bore/Stroke
156 x 159 mmReference
156 x 159 mmReference
Power
36.2 kWReference
—
Cooling system
thermosiphonReference
—
Rated RPM
1200Reference
1200Reference
Starter volts
12Reference
12Reference
Transmission
Transmission
sliding gearReference
sliding gearReference
Gears
9 forward and 3 reverseReference
9 forward and 3 reverseReference
PTO & Hydraulics
Rear PTO Type
540Reference
540Reference
Dimensions
Wheelbase
210 cmReference
210 cmReference
Weight
3855 kgReference
4082 kgReference
Front tire
7.50x18Reference
7.50x18Reference
Rear tire
15.00x30Reference
15.00x30Reference
Ag front
7.50x18Reference
7.50x18Reference
Ag rear
15.00x30Reference
15.00x30Reference
Length
342 cmReference
342 cmReference
Height
228 cmReference
228 cmReference
40KA Serial Numbers
10/1950
404Reference
—
1/1951
471Reference
—
12/1951
1226Reference
—
12/1952
1490Reference
—
12/1953
1834Reference
—
Final
1887Reference
1995Reference
Capacities
Diameter
33 cmReference
—
Width
172 cmReference
172 cmReference
RPM
810Reference
—
Speed
835.15 meters/minReference
—
45KA Serial Numbers
6/1954
—
1888Reference
12/1954
—
1977Reference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.