U55-4 Kubota excavator specs & dimensions (2010 - 2026)

Powerful & Versatile
The Kubota U55-4 combines power for demanding tasks and versatility to work in any condition is ready to take on any challenge. This advanced 5.4-tonne machine has been designed with excellent stability to work efficiently even where space is confined. Versatility is greatly enhanced by two auxiliary circuits as standard and precise oil flow control. With upgraded digging and lifting force and a smoother travel performance, this Kubota truly features everything. For Types L and
Tight Tail Swing
This tight rear swing model proves to be extremely versatile in confined spaces operations.
Enhanced Digging Force
The U55-4 delivers an impressive bucket digging force of 4,315 kgf. Its powerful and well-balanced arm and bucket allow the operator to dig faster and more efficiently, even in the toughest conditions.

Kubota Original Direct Injection Engine
The U55-4 is powered by Kubota's impressive 46 hp direct injection engine. Designed with the power to maximize digging and lifting performance, it also delivers minimized noise and vibration.
Auto-shift
The Auto-Shift system enables automatic travel shift from high to low depending on traction force and terrain. This achieves smoother operations when dozing and turning.

Load Sensing Hydraulic System
Kubota's improved 3-pump load sensing hydraulic system ensures smoother operation, regardless of the load size. It allows flow of the hydraulic oil according to the specific area of lever movement of the operator.
Versatile Control
Two auxiliary circuits (SP1 and SP2) come standard on the U55-4. The maximum oil flow settings of both circuits are conveniently adjustable from the digital panel. No additional tools or complex manual adjustment procedures are required.
Convenient thumb-operated switches allow the operator easy
Proportional flow control of SP1 and SP2. SP2 is standard for types L and,
C. Constant Oil Flow Switch
An on/off forefinger switch allows easy operation of special applications requiring constant oil flow.
Attachment Icons
You can program up to five maximum oil flow settings in memory on the digital panel according to specific attachments. Programmed settings can be accessed quickly for the next task. The system is delivered with eight preinstalled attachment symbols.
Engine/Fuel System Undercarriage Hydraulic System
Side/rear mirrors (left, right and rear), cup holder, double-element air filter, electric fuel pump, auto idling system, water separator with drain cock, 400 mm rubber track, 1 x overhead roller, 5 double-floating track rollers on each track, 2-speed travel switch at dozer lever, two-speed travel with automatic changeover, pressure accumulator, hydraulic pressure check ports, Straight travel circuit, Third Line Hydraulic Return, Load-sensing hydraulic system, Adjustable maximum oil flow to auxiliary circuits (SP1 and SP2) For Types L and, Double additional circuits for accessories, Auxiliary Switch (SP1) on the right hand control lever, Auxiliary Switch (SP2) on left control lever For types L and SP2 On

Optimised Site Cleaning
The dozer blade is up to 410 mm high and the distance between Blade and bucket edge optimized. This allows easier site cleaning and leveling.
Optional Equipment Undercarriage Safety System Others
400 mm steel track (+ 100 kg), 550 mm steel track (+ 300 kg), drain valve unit (arm and dozer), bracket and belt for beacon, special paint on request.

Boom Anti-drop Valve
The U55-4 is equipped with a boom lowering control device (ISO8643) as standard.
Spacious & Comfortable
On the U55-4, your comfort really comes first. The luxurious cab features a deluxe seat and wider entrance allowing easier entry and exit from and to the cabin. The Rollover Protective Structure (ROPS) and Operator Protective Guard (OPG, ISO10262) maximize safety. Operativeness is greatly enhanced by more user-friendly features than ever before.
Air Conditioning
The entire air circulation in the cab has been improved, thanks to a stronger cooling/heating unit and positioning of six vents around the operator for better all-round comfort. A/C is standard for type
Standard Equipment Standard Equipment Safety System Working Equipment
Engine start safety system on the left console, travel engine with disc brake, swing motor with disc brake, overload warning buzzer, Kubota original anti-theft system, dumping valve on boom (ISO8643), auxiliary hydraulic circuits (SP1 and SP2) piping to the arm end For types L and, 2 working lights in the cab and 1 light on outriggers, 1570 mm arm, ROPS (Roll-over Protective Structure, ISO3471), OPG (Operator Protection) Level1, weight adjustable full suspension seat, seat belt, hydraulic pilot control levers with wrist rests, travel levers with foot pedals, air conditioning For type L, cabin heater for defrosting and demisting, emergency exit hammer, front window power assisted with gas damper, 12V power source, 2 speakers and radio antenna, location for radio.