The Kubota KX121-3α GL is a mini excavator listed for 2005-2017. Key specifications include a listed machine weight of about 8,598 lb, approximately 39.4 hp and a listed digging depth of about 11.52 ft.
Key specifications
2005-2017Model years
8,598 lbMachine weight
39.4 hpEngine power
4.2 ft³Bucket
5.58 ftTransport width
11.52 ftDigging depth
18.37 ftDigging reach
Kubota KX121-3α GL size and digging visual
This diagram is generated from the listed transport dimensions for this specific mini excavator.
Top-view transport footprint
Length 16.6 ft • Width 5.58 ft
Side-view transport envelope
Length 16.6 ft • Height 8.17 ft
Listed digging envelopedigging depth 11.52 ft • digging reach 18.37 ft
These are the published specification values for this model and are not a jobsite clearance or excavation safety calculation.
How the Kubota KX121-3α GL compares
These figures compare this machine with other Kubota mini excavators in this specifications database. They are descriptive database comparisons, not performance ratings.
Machine weight8,598 lb
Low 1,866 lbAverage 6,189 lbHigh 12,356 lb
About 39% heavier than the Kubota mini excavators database average. Around the 80th percentile within this Kubota mini excavators dataset.
Engine power39.4 hp
Low 9.9 hpAverage 24.8 hpHigh 48.4 hp
About 59% higher than the Kubota mini excavators database average. Around the 86th percentile within this Kubota mini excavators dataset.
Bucket capacity4.2 ft³
Low 0.8 ft³Average 2.7 ft³High 6.4 ft³
About 56% higher than the Kubota mini excavators database average. Around the 87th percentile within this Kubota mini excavators dataset.
Transport width5.58 ft
Low 2.58 ftAverage 4.63 ftHigh 6.56 ft
About 20% wider than the Kubota mini excavators database average. Around the 84th percentile within this Kubota mini excavators dataset.
Max. digging depth11.52 ft
Low 5.5 ftAverage 9.32 ftHigh 12.73 ft
About 24% higher than the Kubota mini excavators database average. Around the 87th percentile within this Kubota mini excavators dataset.
This model Kubota mini excavators average
Useful conversions and calculated specifications
Machine weight
8,598 lb (3,900 kg)
Engine power
39.4 hp (29.4 kW)
Bucket capacity
4.2 ft³ (0.12 m³)
Transport length
16.6 ft (5.06 m)
Transport width
5.58 ft (1.7 m)
Transport height
8.17 ft (2.49 m)
Max. digging depth
11.52 ft (3.51 m)
Max. digging reach
18.37 ft (5.6 m)
Engine displacement
134.3 cu in (2.2 L)
Power-to-weight
4.6 hp/1,000 lb (10.1 hp/tonne)
Kubota KX121-3α GL FAQ
What years is the Kubota KX121-3α GL listed for?
The available source specifications list the Kubota KX121-3α GL for 2005-2017.
How much does a Kubota KX121-3α GL weigh?
The listed machine weight is about 8,598 lb (3,900 kg).
How much horsepower does the Kubota KX121-3α GL have?
The engine is listed at approximately 39.4 hp (29.4 kW).
How deep can the Kubota KX121-3α GL dig?
The listed maximum digging depth is about 11.52 ft (3.51 m).
What is the digging reach of the Kubota KX121-3α GL?
The listed digging reach is about 18.37 ft (5.6 m).
How wide is the Kubota KX121-3α GL?
The listed transport width is about 5.58 ft (1.7 m). Bucket width can differ by attachment.
Model information
Listed years
2005-2017
Machine type
Mini Excavator
Capacity and performance
Weight
8,598 lb (3,900 kg)
Bucket capacity
4.2 ft³ (0.12 m³)
Bucket width
23.6 in (0.6 m)
Tear-out force
32.5 kN
Digging dimensions
Dredging depth
11.52 ft (3.51 m)
Max. reach horizontal
18.37 ft (5.6 m)
Dimensions and undercarriage
Transport length
16.6 ft (5.06 m)
Transport width
5.58 ft (1.7 m)
Transport height
8.17 ft (2.49 m)
Track width
13.8 in (350 mm)
Engine specifications
Engine type
V2203M
Engine power
39.4 hp (29.4 kW)
Displacement
134.3 cu in (2.2 L)
RPM at max torque
2250 rpm
Equipment
Model series
KX
Rubber track
Yes
Blade
Yes
Air conditioning
No
Disclaimer: Specifications can vary by market, production date, configuration, tracks, boom/stick, bucket and optional equipment. Historical and scraped data can also contain errors. Comparison figures on this page are calculated only from Kubota mini excavators in this dataset. The size and digging diagram visualizes listed specifications and is not a transport-clearance, excavation-safety or operating-limit certification. For purchase, transport, service or safety decisions, verify critical specifications with the machine’s official Kubota documentation. Visit the official Kubota excavator website.
