by Nick Drew | Tue 15 Sep 2026
Milestone Tally for D10 Seat Time
Long term followers of this blog will recall Englishman heavy plant operator and enthusiast Michael Bullock’s big move Down Under to Australia, which we documented a lot about in the early days.
I was absolutely delighted to receive an email from Michael recently telling me about the number of Caterpillar D10 variants he has operated since he moved down there to pursue his career on the big kit.
Michael who is now officially an Australian citizen says that he has operated every series of the legendary D10 dozer. Michael had a rough count up and he reckons that he’s somewhere in the region of 29 x D10 examples, with the D10T Series being the most popular model, he has even provided us with the photographic evidence.
I’m not sure if he had run them in sequence, but let’s start with the original D10 with the (84W serial number prefix)

Next up would be the D10N with the (2YD serial number prefix)

This was followed by the D10R with the (3KR serial number prefix)

Next up we have the most popular model Down Under, the D10T sporting the (RJG serial number)

The upgraded D10T2 was next on Michael’s list with the (RAB serial number)

And finally, the D10 Next Gen model (MGY serial number) completes the set.

Talking about this achievement Michael said, “It’s been pretty awesome to tick off every variant. The D10 is such a common sized dozer here in Western Australia. From housing bulk earthworks to heavy civil and mining work, they are an extremely popular dozer.
The iron ore mine where I work, they are pretty standardised on D10’s, we currently have a fleet of 18 x units, they have proven to be ore nimble than the larger D11’s and of course, far cheaper on running costs”.
Checkout this video from Cat first published 8 years ago, which talks about how the D10 came to fruition.