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Head to head

JCB 50Z-2 vs Kubota KX71-3

The Kubota KX71-3 is the bigger machine by 1,520kg.

Last reviewed 6 October 2026

JCB 50Z-2
JCB 50Z-2 - image: JCB
Kubota KX71-3
Kubota KX71-3 - image: Penrith Tool Hire

Key differences

Specifications side by side

JCB 50Z-2Kubota KX71-3
Operating weight5030 kgapprox. 6,550lb (2,970kg)
Engine power36 kW-
Dig depth3.65 m-
Dump height4.08 m-
Length-14ft 11in
Width-4ft 11in

Sources: JCB 50Z-2, Kubota KX71-3. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the 50Z-2 if...

A zero tailswing digger for utility trenching, house foundations and road edge work where the rear of the machine has to stay inside the track width. It is used on civils sites and hire fleets that want a 5 tonne class machine.

Full 50Z-2 specifications →

Buy or hire the KX71-3 if...

  • you want one that is the bigger machine by 1,520kg

A sub-3 tonne mini excavator for small groundworks, drainage and garden digging jobs. It is a size class widely hired by landscapers and general builders for work too small to justify a larger machine.

Listed by

Full KX71-3 specifications →

Common questions

What is the difference between the JCB 50Z-2 and the Kubota KX71-3?

The Kubota KX71-3 is the bigger machine by 1,520kg. The JCB 50Z-2 is a 5 tonne zero tailswing mini excavator; the Kubota KX71-3 is a mini excavator.

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