2015 Kubota KX91

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1900 Hours
In Stock
Bobcat of Duluth, Inc.
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**** Pricing soon, fresh trade that will be going through our shop ****

7800lb Excavator - 4-Post Canopy, Rubber Tracks, Dozer Blade, 24" Mechanical Quick-Tach Bucket, Hyd Thumb


  • Accumulator - The accumulator makes replacing attachments safer and more efficient. Turning the key to the “on” position clears residual pressure in the auxiliary hydraulic hose. If the engine is accidentally shut off while the front attachment is raised, turning the key to the “on” position allows you to safely lower it.
  • Adjustable Maximum Oil Flow Control for Auxiliary Port - This unique function lets you control the oil flow according to your needs or the attachment in use. It eliminates the hassle of using tools to change settings manually, so you don’t have to leave the cabin. When using a tilt bucket, you can slow the flow to get just the right control to gently shape a swale. Alternatively, for a brush cutter, direct the oil flow to one side of the excavator arm. The system will even store your settings for the next time you need it, saving time and quickly regulating the flow requirements. Adjustable oil flow enhances performance and saves fuel.
  • Auto Idling System - Save fuel with Kubota’s Auto Idle. Reduce engine RPM instinctively when high engine speed isn’t needed. When the control levers are in neutral for more than 4 seconds, the engine RPM automatically idles. Move any control lever and the engine RPM immediately returns. This innovative feature reduces noise and exhaust emissions while reducing operating costs.
  • Centralized Swivel Bearing Lubrication - Grease ports for the swivel bearing, gear teeth, and swing cylinder pin are conveniently grouped on the front of the house.
  • Clean-Running Kubota Engine - Powerful and dependable, the KX91-3S2’s diesel engine delivers superior horsepower and performance. It offers low noise and vibration levels, exceptional fuel efficiency, and complies with the EPA’s 2008 interim Tier IV emissions regulations.
  • Convenient Two-Pattern Selection System (TPSS) - Change between ISO and SAE operating patterns with a quick flip of the TPSS switch, without tools or leaving your seat.
  • Digital Panel - A digital panel and the Kubota Intelligent Control System (KICS) help reduce excavator downtime and repair fees by providing accurate and timely diagnostic readings and routine maintenance alerts. The panel not only lets you know when fuel is running low, but warns you during refueling when the tank is nearly full.
  • Easy Maintenance - The KX91-3S2 is a breeze to maintain. The side and rear covers open wide and the main components are centrally located, giving you quick and easy access to all vital areas, including the engine, fuel tank, water separator, radiator, coolant reservoir, air filter, control valve and hydraulic tank.
  • Easy Operation - Up, down, left and right-the angle blade can be moved and positioned with just a single lever.
  • Extraordinary Stability and Lifting Capacity - Innovative counter balancing technology provides superior excavator stability. Long tumbler distance, a lower center of gravity and Double Flanged Lower Track Rollers combine to deliver safe and effective performance when working to the side, with hydraulic attachments, or lifting heavy objects.
  • Float Position - You don’t need to adjust the dozer height to make a clean ground surface after backfilling, just travel backward along the covered ditch with the dozer in the float position. Ground finishing work is now fast and easy!
  • Front Bush Pins - To maximize durability, we’ve introduced bushings on all of the pivot points on the front attachment and connecting points on the swing bracket.
  • Protected Cylinder Hoses - The bucket cylinder hoses are located inside the arm. And the boom cylinder hoses are routed under the boom bottom.
  • Rear Corner Protectors - Two heavy-duty protectors-one on each rear corner-protect the engine hood and side covers from damage when working in tight spaces.
  • ROPS/FOPS Canopy and Cab - The ROPS/FOPS canopy and cab provide complete protection from accidental rollovers and falling objects. Both the ROPS and the FOPS meet the applicable, ISO, SAE, and OSHA standards to ensure an extra level of safety and security on the job.
  • ROPS/OPG (Top Guard, level I) Canopy and Cab - The ROPS/OPG (Top Guard, level I) canopy and cab provide complete protection from accidental rollovers and falling objects. Both the ROPS and the OPG (Top Guard, level I) meet the applicable, ISO, SAE, and OSHA standards to ensure an extra level of safety and security on the job.
  • Safety - Safety is designed into every detail of the KX91-3S2. An Engine Start Lock-out System prevents the engine from starting when the safety levers are lowered. A Safety Lever Lockout System helps prevent unexpected excavator and attachment movement when entering or exiting the machine. An Auto House Parking Brake automatically locks the house in the position it was in when the engine was shut off, eliminating the need for a swing lock pin. It also makes the excavator more compact during transport and more secure when parked on an incline.
  • Spacious Operating Area with Deluxe Suspension Seat - More spacious than standard tail-swing excavators, the KX91-3S2’s comfortable operating area helps reduce operator fatigue. The highback deluxe suspension seat is equipped with wrist rests. Moreover, the height and spring firmness are adjustable, ensuring optimum comfort for every operator.
  • Steel-Planted Panels - The KX91-3S2 features long-lasting rear and side panels that open easily for quick inspection and routine maintenance. These panels are made of steel for enhanced strength and durability.
  • Strong Bucket Breakout Force - Even when heavily loaded, the KX91-3S2 won’t slow down, thanks to its class-leading breakout force. With the pin-on or quick coupler bucket, the bucket breakout force is 8,059 lbs. That’s more than enough for even the tough excavating jobs.
  • Swivel Negative Brake - The swivel negative brake automatically locks the swivel function in its current position. This prevents unexpected machine movement. It’s particularly useful during work on slopes or when towing the excavator between worksites.
  • Third-Line Hydraulic Return - When working with one-way hydraulic attachments, such as a breaker or brush cutter, the standard third-line hydraulic return system allows oil to flow directly back to the tank without running through the control valves. This contributes to less oil contamination, reduced back pressure, and greater oil flow efficiency.
  • Thumb Bracket - The factory-installed thumb bracket and relief valve significantly reduce the time needed to mount the optional hydraulic thumb, which makes short work of a variety of loading and material handling jobs.
  • Tight Spots - The angle blade lets you work efficiently in confined spaces, alongside walls, and near busy roads. No wider than the tracks, it’s also easy to transport between jobs.
  • Travel Negative Brake - The travel negative brake locks the tracks to prevent unwanted movement. This keeps the excavator secure while transporting it on the back of trucks or parking it on slopes.
  • Two-Piece Hose Design - The two-piece hose connections for the dozer and boom cylinder hoses simplify hose replacement and reduce downtime.
  • User-Friendly Operation - 1) Simple forefinger operation: Used for some special applications that require continuous oil flow, such as a brush cutter. The on/off button controlled by the forefinger reduces operator fatigue. 2) Short stroke operating levers: The operating levers require less effort and shorter movements, ensuring improved control, responsiveness and comfort, and reduced operator fatigue. Only a flick of the wrist is needed for smooth excavator operation. 3) Proportional flow auxiliary switch: A convenient bi-directional switch enables easy operation of hydraulic thumbs and other hydraulic attachments such as augers and breakers. 4) 2-speed travel switch: The 2-speed travel switch is mounted on the dozer lever for easy operation and control, and advanced, user-friendly travel speed changes. 5) Wrist rests: Adjust the custom wrist rests to your favorite position, or just move them aside. Either way, they help reduce arm movement and operator fatigue for increased job efficiency.
  • Wide Working Range - The KX91-3S2’s powerful and responsive front working group can handle all your digging, lifting, and loading jobs. With its increased bucket capacity and improved reach and digging depth, the KX91-3S2 meets or exceeds most job requirements on the construction site.
  • Displacement: 100.5 cu.in. (1647 cc)
  • Engine: Kubota D1703-M-E3
  • Fuel: (Reservoir) 13.2 gal (50 L)
  • Power Level: (Output SAE J1995 Gross) 28.2 hp (21.0 kW) / 2250 rpm ; (Output SAE J1349 Net) 26.9 (20.1 kW) / 2250 rpm
  • Track Type: Rubber
  • Blade Height: 1'1.2" (335 mm)
  • Blade Width: 5'1" (1550 mm)
  • Blade: (Max Drop Below Ground) 14.6" (370 mm)
  • Breakout Force: (Max, Bucket) 8059 gpm (3655 kgf) ; (Max, Arm) 3592 lbs (1629 kgf)
  • Ground Clearance: (Min) 11.6" (295 mm)
  • Ground Pressure: 4.457 (0.313) psi (kgf/cm2)
  • Length: (Crawler) 6'6.7" (2000 mm)
  • Operating Weight: (Including operator’s weight 175 lbs.) 7110 (3225) lbs. (kgf)
  • Overall Height: 8'0" (2440 mm)
  • Overall Length: 15'7" (4760 mm)
  • Overall Width: 5'1" (1550 mm)
  • Width: (Shoe) 11.8" (300 mm)
General Information
  • Boom: (Swing Angle, Left/Right) 80° / 50°
  • Drive System: (Tumbler Distance) 5'1.4" (1560 mm)
  • Lift: (Blade, Max Above Ground) 14.6" (370 mm)
  • Oil Reservoir: (Hydraulic) 9.5 gal (36 L)
  • Oiling System: (Hydraulic) 14.5 gal (55 L)
  • Pump: (Capacity) 10.9 gpm (41.4 l/min) variable × 2 / 5.5 gpm (20.9 l/min) Gear × 1
  • ROPS: (Type of ROPS / OPG (Top Guard Level I)*) Canopy * OPG (Top Guard Level I) in accordance with ISO10262 is equivalent in definition to FOPS (Falling Object Protective Structure).
  • Swing Speed: (Unit) 9.4 rpm
  • Traction System: (Max Force, Low Speed) 5600 lbs (2540 kgf)
  • Travel Speed: (Low/High) 1.9 mph (3.1 km/h) / 2.9 mph (4.8 km/h)
  • Flow: (Auxiliary) 10.9 gpm (41.4 l/min)



Engine Type
Kubota D1703-M-E3


(Crawler) 6'6.7" (2000 mm)
(Shoe) 11.8" (300 mm)
8'0" (2440 mm)
(Including operator’s weight 175 lbs.) 7110 (3225) lbs. (kgf)
Boom Swing
(Swing Angle, Left/Right) 80° / 50°