Kubota Excavator Specs

Factory specs, serial number guides, common failure points, and verified replacement parts — organized by model. Select yours below.

Select Your Model

Parts, specs, and serial number guides for Kubota mini excavators, covering a wide range of KX and U series machines across multiple generations and size classes.

Fits Models At A Glance

KX Series (Compact): KX015-4, KX016-4, KX018-4, KX033-4, KX040-4, KX057-5, KX57, KX061-2, KX071-3, KX080, KX121-3, KX121-3S
U Series (Zero Tail Swing): U25, U35-4, U45-3
K Series (Micro): K008-4

Key Notes

Coverage: Each guide includes model-specific specs, serial number ranges, and compatible parts references
Serial Numbers: Use serial number breakpoints to confirm correct part fitment across machine generations
Size Classes: Guides span micro, compact, and mid-size mini excavator categories from under 1 ton to 8 ton class
Series Variants: Generation suffixes (e.g., -3, -4, -5) indicate updated models with revised part numbers

Why Choose Broken Tractor

✅ Detailed spec guides matched to exact Kubota models
✅ Serial number breakdowns help confirm correct part fitment
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Frequently Asked Questions

What are the Kubota mini excavator models?

Broken Tractor carries parts, specs and serial number guides for Kubota KX, U and K series mini excavators. The KX series includes the KX015-4, KX016-4, KX018-4, KX033-4, KX040-4, KX57, KX057-5, KX061-2, KX071-3, KX080, KX121-3 and KX121-3S. The U series zero tail swing machines include the U25, U35-4 and U45-3, and the K008-4 is a micro model.

How much does a Kubota mini excavator weigh?

Kubota mini excavators range from under 1 ton up to the 8 ton class, covering micro, compact and mid-size machines. The K008-4 sits at the micro end of the lineup. Each of our model guides includes model-specific specs, so check the guide for your exact model and generation.

What is the difference between Kubota KX57 and KX057-5 specs?

The generation suffix, such as -3, -4 or -5, marks an updated model with revised part numbers. That means a KX057-5 and an earlier KX57 can need different parts even though the names look alike. We offer separate spec and serial number guides for the KX57 and the KX057-5 so you can match parts to the correct generation.

Where can I find Kubota U35 mini excavator specs?

Broken Tractor has a parts, specs and serial number guide for the Kubota U35-4 zero tail swing mini excavator. It includes model-specific specs, serial number ranges and compatible parts references. We also carry guides for the U25 and U45-3 if you are comparing U series sizes.

How do I use my serial number to find the right parts for a Kubota mini excavator?

Find your machine's serial number and compare it to the serial number breakpoints in the guide for your model. Kubota revised part numbers between generations, so the serial number confirms which parts fit your machine. If you are unsure, match the part number from your old part or call (800) 909-7060 to confirm with our parts team.