Accessories that fit a Holden Colorado

The RC and the RG are two different vehicles

This is the trap on the Colorado, and it costs people money because the badge never changed.

The RC, sold from 2008 to 2012, is an Isuzu D-MAX with Holden badges. Same platform, same underpinnings, largely the same parts. If a bar, a bash plate or a set of flares is listed for a D-MAX of those years, it will usually suit an RC.

The RG that replaced it in 2012 is not that vehicle. It was developed by GM and shares its bones with the Chevrolet Colorado, not with anything Isuzu makes. The badge on the tailgate is the only thing carried over. D-MAX parts stop fitting at that line, and a listing that says "suits Colorado" without saying which one is not telling you enough.

If you take one thing from this page: ask which generation the part is for, not just which model.

The RG changed again in 2016

Holden facelifted the RG for the 2017 model year, and it was more than a grille. The front end, the bonnet line and some mounting points moved. Anything that bolts to the front of the vehicle — bull bars, nudge bars, driving light brackets, underbody protection at the front — needs to be right for the pre- or post-facelift car.

Retailers often write this as "RG" for both, or "MY17 on" for the later one. Neither is wrong, and neither is precise enough on its own.

It was discontinued in 2020, and that helps

Holden closed in 2020 and the Colorado stopped with it. Nothing about the vehicle will change again, so the aftermarket is settled: what exists is known, and fitment for it is well documented rather than provisional.

The trade is availability. Fit is the easy part on a discontinued vehicle; getting a second one of something in two years is the harder part.

Its predecessor is part of the same story

The Holden Rodeo that came before the Colorado was also Isuzu-based, and the RA Rodeo became the RC Colorado with very little changed. Listings for older utes sometimes cover both. That lineage is real, and it ends the moment the RG arrives — the RG has no Rodeo ancestry at all.

What to give the retailer

The series code — RC or RG — and the build date off the compliance plate. On an RG, say whether it's before or after the 2016 facelift. And if the part is described as fitting a D-MAX, say the word Colorado explicitly and ask them to confirm, because for two thirds of this model's life that assumption is wrong.