all any seller needs to offer, under Australian consumer law, is 12 months against faulty parts and workmanship. (wear and tear is usually excluded) There is also the clause about the item being "fit for purpose".
this is why most mountainbikes and BMX bikes come with a sticker on the bicycle that specifically refers to the warranty being void if used for "competition, jumping, stunting or off road use".
Many bicycle manufacturers offer longer warranties as it's good business. I suspect that many camper companies do the same as well.
Besides... if you believe in your product, then you have nothing to fear as a manufacturer... right?
But pretty much every consumer item sold in Australia will have the clause (probably hidden deep in the fine print) that the warranty is only valid to the original owner. (TVs, fridges, campers, etc etc)
Worth being aware of.
That's not to say of course, that some companies won't offer to transfer warranties. In bikes, I know that Turner Bikes do, (or used to, I should check if they still do) So some of the more premium camper brands might too.
