Kubota KX121-3 Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Kubota ➔
Model: KX121-3 ➔

Kubota KX121-3 is a compact mini excavator designed for digging, trenching, grading, and utility work in confined jobsite conditions. It is part of Kubota's KX series and is commonly used in construction, landscaping, municipal maintenance, and site preparation. The machine features a conventional tail swing design, hydraulic controls, and a compact footprint for improved maneuverability. Typical applications include foundation work, pipe installation, and material handling. The KX121-3 is known for combining digging performance with transportability and access to tight spaces. Specifications may vary by configuration, attachment, and production year.

Boom/Stick 1

Kubota KX121-3 Mini Excavator Boom/Stick 1 specifications
Max Cutting Height	17.79 ft (5.42 m)
Max Digging Depth	11.50 ft (3.51 m)
Max Loading Height	12.77 ft (3.89 m)
Max Reach Along Ground	17.97 ft (5.48 m)
Max Vertical Wall Digging Depth	8.14 ft (2.48 m)
Shipping Height Of Unit	8.19 ft (2.50 m)
Shipping Length Of Unit	16.70 ft (5.09 m)

Dimensions

Kubota KX121-3 Mini Excavator Dimensions specifications
Ground Clearance	1.09 ft (0.33 m)
Height	8.17 ft (2.49 m)
Height To Top Of Cab	8.19 ft (2.50 m)
Length	16.58 ft (5.05 m)
Length Of Track On Ground	16.70 ft (5.09 m)
Tail Swing Radius	4.27 ft (1.30 m)
Weight	9,261.00 lbs (4,200.72 kg)
Width	5.50 ft (1.68 m)
Width To Outside Of Tracks	5.58 ft (1.70 m)

Engine

Kubota KX121-3 Mini Excavator Engine specifications
Displacement	219.70 cu in (3,600.25 cu cm)
Engine Make	2334
Engine Model	V2203-M
Gross Power	40.50 hp (30.20 kw)
Net Power	42.00 hp (31.32 kw)
Power Measured @	2250 rpm

Operational

Kubota KX121-3 Mini Excavator Operational specifications
Fuel Capacity	17.00 gal (64.35 l)
Hydraulic Pump Flow Capacity	15.90 gpm (60.18 lpm)
Hydraulic System Fluid Capacity	17.70 gal (66.99 l)
Operating Weight	9,063.00 lbs (4,110.20 kg)
Traction Force	8,752,351.00 lbs (3,969,320.32 kg)

Swing Mechanism

Kubota KX121-3 Mini Excavator Swing Mechanism specifications
Swing Speed	9.4 rpm

Undercarriage

Kubota KX121-3 Mini Excavator Undercarriage specifications
Ground Pressure	4.41 psi
Max Travel Speed	3.10 mph (4.99 kph)
Shoe Size	13.78 in (35.00 cm)

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