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Kubota KX91-3GLS2 specifications

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Short answer

Kubota KX91-3GLS2: excavator.

Selected configuration figures
ConfigurationDocumented field and quantity
KX91-3GLS2
Gross Power
29.6 hp
Operating Weight
7,518 lb
KX91-3GLS2 specification matrix — Boom/Stick Option (Hex) 1
SpecificationKX91-3GLS2
Max Vertical Wall Digging Depth6.27 ft
Max Digging Depth10.45 ft
Max.Dumping Height11.6 ft
Mximum Dig Radius201.97 in
Max Digging Height11.62 ft
Dimensions and weight
SpecificationKX91-3GLS2
Ground Clearance0.97 ft
Tail Swing Radius4.3 ft
Overall Height8.01 ft
Overall Length15.62 ft
Undercarriage
SpecificationKX91-3GLS2
Shoe Size9.06 in
Ground Pressure4.6 psi
Drawbar Pull4,865 lb
Engine
SpecificationKX91-3GLS2
Number Of Cylinders3
Engine MakeKubota
Engine ModelD902-E3
Gross Power29.6 hp
Net Power28.3 hp
Power Measured @2,300 rpm
Displacement3,344 cu in
Model NameKX91-3GLS2
Operational
SpecificationKX91-3GLS2
Auxiliary Hydraulic Flow16.5 gpm
Travel Speed, Low Range2 mph
Travel Speed, High Range3 mph
Operating Weight Cabin7,330 lb
Operating Weight7,518 lb
Fuel Capacity5.1 gal
Hydraulic System Fluid Capacity6.1 gal
Hydraulic Pump Flow Capacity3.5 gpm
Swing Mechanism
SpecificationKX91-3GLS2
Swing Speed9.1 rpm
Blade
SpecificationKX91-3GLS2
Maximum Drop Below Ground0.7 ft
Blade Lift Height11.1 in
Blade width5.1 ft
Boom
SpecificationKX91-3GLS2
Boom Swing Left65 degrees
Boom Swing Right58 degrees
Ratios
FigureKX91-3GLS2
Engine horsepower per 1,000 lb of weight3.8
Fuel tank per engine horsepower0.18 gal

Kubota KX91-3GLS2: excavator

Where the KX91-3GLS2 ranks in Kubota's list — Scope of the captured comparison
BrandEquipment groupCompared entrySort order
KubotaexcavatorKX91-3GLS2Descending quantity; 1 is largest
FigureKX91-3GLS2RankLowest in lineHighest in line
Engine power28.3 hp7 of 227.5 hp47.6 hp
Listed weight7,518 lb5 of 172,200 lb11,532 lb
Fuel capacity5.1 gal17 (tied) of 213.2 gal19.3 gal
Horsepower per 1,000 lb3.8 hp11 of 173.0 hp4.6 hp
Ground pressure4.6 psi1 of 133.4 psi4.6 psi
Maximum digging depth10.5 ft6 of 145.6 ft12.6 ft

The KX91-3GLS2 beside its neighbours

Base versionKX030-4KX91-3GLS2
Engine power23.3 hp28.3 hp
Weight6,272 / 6,426 (2,845 / 2,915) lb7,518 lb
Pump flowKX030-4: 8.3 gpm (31.5) Piston x 2 gpm / 4.7 gpm (18) Gear x 1 gpm
Standard hydraulic flowKX030-4: 13 gpm
Fuel capacity12.7 gal5.1 gal
Ground pressureKX91-3GLS2: 4.6 psi
Maximum digging depthKX91-3GLS2: 10.45 ft

KX91-3GLS2: owner reports

Sources: 3 forum discussions about the Kubota KX91-3 mini excavators; heavyequipmentforums.com.
KX91-3GLS2: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment ForumsexcavatorKubota and the KX91 line that the KX91-3GLS2 belongs to (no title names the exact model)33
Topics named by those titles
Title topicTitles
hydraulics4
Topic in the titleThreadsShare of matching threads
hydraulics412%
KX91-3GLS2: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)excavatorKX91-3GLS2No matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionKubota; KX91-3GLS2No matching recall in the stated search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Forum threads
Forum threads
Federal agency data

Kubota KX91-3GLS2: Configuration records

KX91-3GLS2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Max Vertical Wall Digging Depth6.27 ft
Max Digging Depth10.45 ft
Max Digging Height11.62 ft
Max.Dumping Height11.6 ft
Mximum Dig Radius201.97 in
Dimensions and weight
Ground Clearance0.97 ft
Tail Swing Radius4.3 ft
Overall Height8.01 ft
Overall Length15.62 ft
Undercarriage
Ground Pressure4.6 psi
Drawbar Pull4,865 lb
Shoe Size9.06 in
Engine
Engine MakeKubota
Gross Power29.6 hp
Net Power28.3 hp
Power Measured @2,300 rpm
Model NameKX91-3GLS2
Number Of Cylinders3
Operational
Operating Weight7,518 lb
Fuel Capacity5.1 gal
Hydraulic System Fluid Capacity6.1 gal
Auxiliary Hydraulic Flow16.5 gpm
Travel Speed, Low Range2 mph
Travel Speed, High Range3 mph
Operating Weight Cabin7,330 lb
Swing Mechanism
Swing Speed9.1 rpm
Blade
Maximum Drop Below Ground0.7 ft
Blade width5.1 ft
Blade Lift Height11.1 in
Boom
Boom Swing Left65 degrees
Boom Swing Right58 degrees
Additional specifications
Engine ModelD902-E3

Source

More in Kubota: KX040-4A–KX040-4TA, KX91-3/U35: track choices/auxiliary control/specs, KX040-4/KX040-5.