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Kubota KL3950 vs Kubota KL40Z
Verdict: Kubota KL3950 vs Kubota KL40Z
The Kubota KL3950 and the Kubota KL40Z are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 39 hp. Kubota KL40Z is the lighter machine (1,814 kg vs 3,362 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota KL3950 holds more fuel (40.1 L vs 39.0 L) for longer stints between fills. Kubota KL40Z is the newer design (2012 vs 2010). 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
39 hp
39 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
KubotaReference
KubotaReference
Three range transmission. Twelve forward, eight reverse, in creeper and medium range. Six forward, four reverse, in high-speed range.Reference
Three range transmission. Twelve forward, eight reverse, in creeper and medium range. Six forward, four reverse, in high-speed range.Reference
Engine
Fuel tank
40.1 LReference
39.0 LReference
Engine
28.7 kWReference
29.4 kWReference
Displacement
2.2 LReference
2.2 LReference
Bore/Stroke
87 x 92 mmReference
87 x 92 mmReference
Power
28.7 kWReference
29.4 kWReference
Rated RPM
2600Reference
2600Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Fuel Type
dieselReference
dieselReference
No of Cylinders
4 cylinderReference
4 cylinderReference
Rated engine speed
2,600 RPMReference
2,600 rpmReference
Bore and stroke
3.43x3.64 inchesReference
3.43x3.64 inchesReference
Cooling system
liquid-cooledReference
liquid-cooledReference
Transmission
Transmission
GlideshiftReference
Dual DriveReference
Type
power shiftReference
continuously-varaible transmissionReference
Gears
30 forward and 20 reverseReference
30 forward and 20 reverseReference
Clutch
dry discReference
dry discReference
Transmission Type
PowershiftReference
CVTReference
forward and reverse options
Glideshift : Powershift : 24 F and 16 R | 30 F and 20 RReference
—
Wheel Drive
4WDReference
4WDReference
PTO & Hydraulics
Rear Type
IReference
IReference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Engine RPM
-944@2600Reference
-770@2600Reference
Dimensions
Wheelbase
188 cmReference
188 cmReference
Weight
3362 to 3781 poundsReference
1814 kgReference
Front tire
8-18Reference
8-18Reference
Rear tire
12.4-28Reference
12.4-28Reference
Standard tires (ag)
Front: 8-18. Rear: 12.4-28Reference
Front: 8-18. Rear: 12.4-28Reference
Length
344 cmReference
338 cmReference
Width
149 cmReference
152 cmReference
Height (ROPS)
231 cmReference
231 cmReference
Height (cab)
219 cmReference
228 cmReference
ROPS Weight
1525 kgReference
—
Cab Weight
1715 kgReference
—
Ground clearance
40 cmReference
40 cmReference
Front tread
119 cmReference
119 cmReference
Rear tread
114 to 143 cmReference
120 to 143 cmReference
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
General
Make & Model
KubotaReference
—
Rollover protective structure
Two-post ROPSReference
Two-post ROPSReference
Capacities
Capacity
134.1 ciReference
134.1 ciReference
Power
Max Power
38.5 hpReference
39.4 hpReference
PTO
Rear PTO Power
AvailableReference
AvailableReference
Rear PTO RPM
540 RPMReference
540 RPMReference
Engine Speed on Rear PTO speed
1,258@2,600 RPMReference
1,298@2,600 rpmReference
Steering & brakes
Brakes
mechanical wet discReference
mechanical wet discReference
Steering type
powerReference
powerReference
Hydraulics
Rear Hitch category (SAE designation)
Category IReference
Category IReference
Dimensions & weight
Height Over Cab
220 cmReference
228.1 cmReference
Height Over ROPS
231.9 cmReference
231.9 cmReference
Overall Length
344.4 cmReference
338.6 cmReference
Overall Width
149.6 cmReference
152.4 cmReference
Overall weight
1,525 kgReference
1,814.8 kgReference
Wheels & tyres
Rear Wheel Type
12.4-28Reference
12.4-28Reference
Rear wheel tread range
44.9 to 56.3 inchesReference
47.6 to 56.3 inchesReference
Front Wheel Type
45,522Reference
45,522Reference
Front Wheel tread range
119.9 cmReference
119.9 cmReference
Operator station
Cab Availability
AvailableReference
AvailableReference
Variants
KL40Z
—
wheeledReference
KL40Z-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.