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Kubota B40 vs Kubota GB145
Verdict: Kubota B40 vs Kubota GB145
The Kubota B40 and the Kubota GB145 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 14 hp. Kubota GB145 is the lighter machine (539 kg vs 550 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota B40 holds more fuel (17.0 L vs 12.9 L) for longer stints between fills. Kubota GB145 is the newer design (2004 vs 1988). 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
Kubota
71
Fit score
Best match
Clear
Kubota
71
Fit score
Best match
Clear
Rated power
14 hp
14 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
KubotaReference
KubotaReference
liquid-cooledReference
Three gears, plus reverse, in two ranges.Reference
Engine
Fuel tank
17.0 LReference
12.9 LReference
Engine
10.4 kWReference
10.3 kWReference
Displacement
0.9 LReference
0.7 LReference
Bore/Stroke
72 x 70 mmReference
67 x 68 mmReference
Power
10.4 kWReference
10.3 kWReference
Rated RPM
2600Reference
2800Reference
Starter
electricReference
negativeReference
Starter volts
12Reference
12Reference
Transmission
Type
gearReference
gearReference
Gears
6 forward and 2 reverseReference
6 forward and 2 reverseReference
PTO & Hydraulics
Rear Type
JIS0Reference
0Reference
Rear PTO Type
540 (1.375)Reference
540/1000 (1.375)Reference
Engine RPM
1228@2600Reference
—
Control
—
position controlReference
Dimensions
Wheelbase
124 cmReference
127 cmReference
Weight
550 kgReference
539 kgReference
Front tire
5.00-12Reference
5-12Reference
Rear tire
8-16Reference
8-16Reference
Standard tires (ag)
Front: 5.00-12. Rear: 8-16Reference
Front: 5-12. Rear: 8-16Reference
Length
215 cmReference
201 cmReference
Width
105 cmReference
105 cmReference
Height
124 cmReference
—
Ground clearance
23 cmReference
27 cmReference
Front tread
76 cmReference
74 cmReference
Rear tread
81/89 cmReference
72 to 87 cmReference
Height (ROPS)
—
181 cmReference
Electrical
Ground
negativeReference
electricReference
Battery volts
12Reference
12Reference
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.