Kubota U55-4 is a compact mini excavator designed for construction, landscaping, utility, and site preparation work. It is part of Kubota's U-series and is known for a zero-tail-swing design that improves maneuverability in confined spaces. The U55-4 typically features a 47.6 hp Kubota diesel engine, an operating weight of about 12,000 lb, and a maximum digging depth of around 11 ft. Common equipment includes a hydraulic thumb, auxiliary hydraulics, dozer blade, and enclosed cab options. The model is used for trenching, grading, lifting, and material handling on residential and commercial job sites.
Blades
Kubota U55-4 Mini Excavator Blades specifications
Blade Lift Height
17.40 in (44.20 cm)
Maximum Drop below ground
1.40 ft (0.43 m)
Overall Height
8.40 ft (2.56 m)
Boom
Kubota U55-4 Mini Excavator Boom specifications
Boom swing left
75 degrees
Boom swing right
55 degrees
Boom/Stick Excavator Option 1
Kubota U55-4 Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Digging Depth
11.90 ft (3.63 m)
Max Digging Height
18.40 ft (5.61 m)
Max Reach Along Ground
19.60 ft (5.97 m)
Max Vertical Wall Digging Depth
5.00 ft (1.52 m)
Max.Dumping Height
13.20 ft (4.02 m)
Mximum dig radius
239.40 in (608.08 cm)
Dimensions
Kubota U55-4 Mini Excavator Dimensions specifications
Crawler length
8.30 ft (2.53 m)
Ground Clearance
1.10 ft (0.34 m)
Overall length
18.10 ft (5.52 m)
Overall Width
77.20 in (196.09 cm)
Tail Swing Radius
3.50 ft (1.07 m)
Engine
Kubota U55-4 Mini Excavator Engine specifications
Displacement
9,739.40 cu in (159,600.52 cu cm)
Engine Make
Kubota
Engine Model
V2607-CR-E4
Gross Power
49.50 hp (36.91 kw)
Model Name
U55-4A1
Net Power
45.10 hp (33.63 kw)
Number of Cylinders
4
Power Measured @
2200 rpm
Operating Specifications
Kubota U55-4 Mini Excavator Operating Specifications specifications
Auxiliary fuel tank
9.80 gal (37.09 l)
Auxiliary hydraulic flow
19.90 gpm (75.32 lpm)
Fuel Capacity
18.00 gal (68.13 l)
Hydraulic Pump Flow Capacity
11.90 gpm (45.04 lpm)
Hydraulic System Fluid Capacity
20.90 gal (79.11 l)
Operating Weight
11,915.00 lbs (5,404.56 kg)
Travel speed, high range
3.10 mph (4.99 kph)
Travel speed, low range
2.00 mph (3.22 kph)
Swing Mechanism
Kubota U55-4 Mini Excavator Swing Mechanism specifications
Swing Speed
8.9 rpm
Undercarriage
Kubota U55-4 Mini Excavator Undercarriage specifications
Shoe Size
15.80 in (40.13 cm)
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