Head to head · Sub-Compact

Kubota GB15 vs Kubota JB15X

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KubotaModel A

Kubota GB15

Sub-Compact

power
14.8 hp
displacement
54.8 ci
Cylinders
3
Forward gears
6
Full GB15 specs
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KubotaModel B

Kubota JB15X

Utility

power
14.8 hp
displacement
47.5 ci
Cylinders
3
Forward gears
6
Full JB15X specs
KubotaKubota GB15
vs
KubotaKubota JB15X

How they compare

Headline specs vs. the whole Sub-Compact

n = 584–816

Engine Power

= Effectively tied
GB1514.8 hp
JB15X14.8 hp
Median Sub-Compact Tractor26.9 hp

GB15 is in the 8th percentile; JB15X is in the 8th · 816 models

Engine Displacement

▲ GB15 higher · +7.3 ci (+15%)
GB1554.8 ci
JB15X47.5 ci
Median Sub-Compact Tractor91.4 ci

GB15 is in the 13th percentile; JB15X is in the 8th · 757 models

Cylinders

= Effectively tied
GB153
JB15X3
Median Sub-Compact Tractor3

GB15 is in the 50th percentile; JB15X is in the 50th · 802 models

Forward Gears

= Effectively tied
GB156
JB15X6
Median Sub-Compact Tractor9

GB15 is in the 18th percentile; JB15X is in the 18th · 616 models

GB15 (A)JB15X (B)Median Sub-Compact Tractor

Full comparison

Every spec, side by side

General Information

SpecKubota GB15Kubota JB15XDifference
ManufacturerKubotaKubotaSame
ModelGB15JB15X—
CategorySub-CompactUtility, Sub-Compact—

Engine

SpecKubota GB15Kubota JB15XDifference
ManufacturerKubotaKubotaSame
ModelD905D782—
Power Output14.8hp14.8hpSame
Rated RPM2,500RPM2,600RPM▲ JB15X+100 RPM · +4%
Cylinders33Same
Displacement54.8ci47.5ci▲ GB15+7.3 ci · +15%
Bore2.8in2.6in▲ GB15+0.2 in · +8%
Stroke2.9in2.9inSame

Transmission

SpecKubota GB15Kubota JB15XDifference
TypeGearManual—

Dimensions & Weight

SpecKubota GB15Kubota JB15XDifference
Length80.5in80.5inSame
Width38.2in38.2inSame
Height72.2in72.4in▲ JB15X+0.2 in · <1%
Operating Weight1,257lb1,268lb▲ JB15X+11 lb · <1%

Hydraulics

SpecKubota GB15Kubota JB15XDifference
Steering TypeManualPower—

Tires

SpecKubota GB15Kubota JB15XDifference
Front Tire SizeNot recorded5.00-12—
Rear Tire SizeNot recorded18-Aug—

Hitch & Towing

SpecKubota GB15Kubota JB15XDifference
Hitch Category0Category 3—

Chassis & Drive

SpecKubota GB15Kubota JB15XDifference
Chassis TypeNot recorded4x4 MFWD 4WD—
Drive TypeNot recorded4WD—
Steering TypeManualPower—

Electrical

SpecKubota GB15Kubota JB15XDifference
Battery Voltage12VNot recorded—
Starter TypeElectricElectricSame

Category context

Both models against the field

Engine Power

median 26.9 hp
A · 8th percentile (14.8 hp)B · 8th percentile (14.8 hp)

Engine Displacement

median 91.4 ci
A · 13th percentile (54.8 ci)B · 8th percentile (47.5 ci)

Cylinders

median 3
A · 50th percentile (3)B · 50th percentile (3)

Forward Gears

median 9
A · 18th percentile (6)B · 18th percentile (6)

Operating Weight

median 2,700 lb
A · 9th percentile (1,257 lb)B · 9th percentile (1,268 lb)
A · GB15B · JB15XMedian Sub-Compact Tractor
Full spec pageKubota GB15Full spec pageKubota JB15X