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Head to head

Caterpillar D4K2 vs JCB 6ST-2S5 Swivel

The Caterpillar D4K2 is the bigger machine by 3,328kg.

Last reviewed 13 September 2026

Key differences

Specifications side by side

Caterpillar D4K2JCB 6ST-2S5 Swivel
Operating weight8,168kg (XL) / 8,476kg (LGP)4,840kg
Engine power92hp (68.8kW), Cat C4.4 ACERT-
Blade capacity1.98m3 (XL) / 1.85m3 (LGP)-
Ground pressure38.6kPa (XL) / 29.2kPa (LGP)-
Skip capacity-3,191 litres (heaped)

Sources: Caterpillar D4K2, JCB 6ST-2S5 Swivel. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the D4K2 if...

  • you want one that is the bigger machine by 3,328kg

Cat's smallest crawler dozer, used for grading, site clearance and landscaping where a larger machine would be too heavy or too wide. The LGP undercarriage option suits soft or wet ground.

Listed by

Full D4K2 specifications →

Buy or hire the 6ST-2S5 Swivel if...

Suits groundworkers who need to tip to the side or rear without turning the whole machine, useful in trenches or narrow access where reversing to line up a straight-tip skip is awkward. The 6 tonne capacity sits in the middle of JCB's swivel dumper range.

Listed by

Full 6ST-2S5 Swivel specifications →

Common questions

What is the difference between the Caterpillar D4K2 and the JCB 6ST-2S5 Swivel?

The Caterpillar D4K2 is the bigger machine by 3,328kg. The Caterpillar D4K2 is a small crawler dozer; the JCB 6ST-2S5 Swivel is a 6 tonne swivel-skip site dumper.

GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.