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Kubota JB18 vs Kubota KB18
Verdict: Kubota JB18 vs Kubota KB18
The Kubota JB18 and the Kubota KB18 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. Kubota JB18 is the lighter machine (590 kg vs 1,532 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota KB18 holds more fuel (26.9 L vs 14.0 L) for longer stints between fills. Kubota JB18 is the newer design (2006 vs 2005). 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
18 hp
18 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
KubotaReference
KubotaReference
Three gears, plus reverse, in two ranges.Reference
Sequential hydraulically-shifted transmission. Twelve forward gears with three ranges. Tractor must be stopped, and clutch used, to shift ranges.Reference
Steering
powerReference
—
Variants
JB18
wheeledReference
—
JB18-PC
half-trackReference
—
Engine
Fuel tank
14.0 LReference
26.9 LReference
Engine
13.6 kWReference
13.2 kWReference
Displacement
1.0 LReference
1.0 LReference
Bore/Stroke
76 x 74 mmReference
76 x 74 mmReference
Power
13.6 kWReference
13.2 kWReference
Rated RPM
2600Reference
2600Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Gears
6 forward and 2 reverseReference
36 forward and 24 reverseReference
Clutch
dry discReference
dry discReference
Gear Weight
—
694 kgReference
Transmission
—
GlideshiftReference
Type
—
power shiftReference
PTO & Hydraulics
Rear Type
0Reference
0Reference
Rear PTO
540 (1.375)Reference
—
Rear PTO Type
967:2600Reference
540 (1.375)Reference
Engine RPM
—
-662@2600Reference
Dimensions
Wheelbase
127 cmReference
135 cmReference
Weight
590 kgReference
1532 to 1587 poundsReference
Front tire
5.00-12Reference
6.00-12Reference
Rear tire
8-18Reference
8.3-22Reference
Standard tires (ag)
Front: 5.00-12. Rear: 8-18Reference
Front: 6.00-12. Rear: 8.3-22Reference
Length
204 cmReference
234 cmReference
Width
97 cmReference
107 cmReference
Height
183 cmReference
—
Ground clearance
28 cmReference
35 cmReference
Front tread
74 cmReference
84 cmReference
Rear tread
72/76 cmReference
81/89 cmReference
Height (ROPS)
—
189 cmReference
Glideshift Weight
—
719 kgReference
JB18 Serial Numbers
Location:
Serial number decal on the right side of the tractor frame, above the front axle.Reference
—
Electrical
Ground
negativeReference
negativeReference
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.