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Kubota B3150 vs Kubota KL31Z
Verdict: Kubota B3150 vs Kubota KL31Z
The Kubota B3150 and the Kubota KL31Z are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 31 hp. Kubota KL31Z is the lighter machine (1,644 kg vs 1,863 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota KL31Z holds more fuel (40.1 L vs 26.9 L) for longer stints between fills. Kubota B3150 is the newer design (2014 vs 2013). 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
31 hp
31 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
KubotaReference
KubotaReference
liquid-cooledReference
Hydro-mechanical CVT.Reference
Differential lock
mechanical rearReference
—
Engine
Fuel tank
26.9 LReference
40.1 LReference
Engine (gross)
22.8 kWReference
—
Engine (net)
20.9 kWReference
—
Displacement
1.5 LReference
1.8 LReference
Bore/Stroke
78 x 78 mmReference
86 x 102 mmReference
Rated Power (net)
20.9 kWReference
—
Power (gross)
22.8 kWReference
—
Air cleaner
dry elementReference
—
Rated RPM
2500Reference
2600Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Engine
—
22.8 kWReference
Power
—
22.8 kWReference
Transmission
Type
hydrostaticReference
continuously-varaible transmissionReference
Gears
infinite forward and reverse (3-range)Reference
infinite forward and reverse (3-range)Reference
Transmission
—
Dual DriveReference
Clutch
—
dry discReference
PTO & Hydraulics
PTO (claimed)
17.4 kWReference
—
Pressure
161.8 barReference
—
Total flow
32.9 lpmReference
—
Rear Type
IReference
IReference
Control
position controlReference
—
Rear lift (at ends)
969 kgReference
—
Rear PTO
independentReference
—
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Mid PTO
optionalReference
—
Mid PTO Type
2500 (Kubota 10-tooth #5)Reference
—
Engine RPM
—
-764@2600Reference
Dimensions
Wheelbase
166 cmReference
180 cmReference
Weight
1863 to 2348 poundsReference
1644 kgReference
Front tire
180/85D12Reference
8-16Reference
Rear tire
12.4-16Reference
13.6-24Reference
Standard tires (ag)
Front: 180/85D12. Rear: 12.4-16Reference
Front: 8-16. Rear: 13.6-24Reference
Lawn/turf front
24x8.50-12Reference
—
Lawn/turf rear
13.6-16Reference
—
ROPS Length
293 cmReference
—
Cab Length
300 cmReference
—
Width
136 cmReference
153 cmReference
Height (ROPS)
232 cmReference
—
Height (cab)
214 cmReference
223 cmReference
ROPS Weight
845 kgReference
—
Hydro Weight
1065 kgReference
—
Ground clearance
31 cmReference
36 cmReference
Front tread
93 cmReference
113 cmReference
Rear tread
104 cmReference
120/123 cmReference
Length
—
324 cmReference
Kubota B3150 attachments
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
—
Battery volts
12Reference
12Reference
Attachment overview
Variants
KL31Z
—
wheeledReference
KL31Z-PC
—
half-trackReference
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.