Used Fiat Doblo Wheel Arch Liner

This is the key generation boundary to watch: the Doblo moved from the first generation (Mk1, roughly 2001–2010) to the second generation (Mk2, 2010 onwards), so a liner from a 2010 car could be from either generation depending on the exact build date. Liners from the Mk1 will not fit the Mk2, as the bodyshell changed completely. If both cars are confirmed Mk2, fitment is more plausible, but confirm with the breaker against both registrations before buying.

Yes, the Doblo Cargo was offered in short wheelbase (SWB) and long wheelbase (LWB) variants, and the rear wheel arch liner in particular can differ between them due to the extended body on the LWB. Always tell the breaker whether your van is SWB or LWB when requesting a rear arch liner. Front arch liners are less likely to be affected by wheelbase, but it's still worth confirming.

No, trim level does not affect wheel arch liner fitment on the Doblo — Active, Dynamic, and higher specifications all share the same body pressings for a given generation. What matters is the generation (Mk1 or Mk2), the body style (panel van, combi, or people carrier), and whether it is SWB or LWB. You do not need to match trim level when sourcing a liner from a breaker.

For the front arch liners, the rear door configuration makes no difference at all. For rear liners, the difference is unlikely to be significant as the arch itself sits well forward of the door aperture, but it is worth mentioning your door type to the breaker when ordering a rear liner just to be certain.

Both years fall within the Mk2 generation (2010 onwards), so the body platform is shared and fitment is plausible. However, there were running production changes within the Mk2 lifespan and you should confirm with the breaker against your exact registration, as minor pressing differences can sometimes occur mid-generation without a formal facelift announcement.

These are different body styles built on the same platform, and the arch liner profiles can differ, particularly at the rear where the bodywork varies between the panel van and the windowed people carrier body. Front liners may be more likely to interchange, but this is not guaranteed. Give the breaker both the donor and recipient body styles so they can check before supplying the part.