Businesses around the world import truck parts and plant machinery from the UK for their fleets. They would not be doing this if the parts were not compatible with their vehicles. The reason many business owners choose to import from the UK as opposed to buying parts in their own country is for a few reasons: 1) Truck parts are hard to source, 2) Truck parts are too expensive, and 3) Some truck parts are available from UK-spec trucks only.
However, the great thing about modern vehicles is that they are mass produced and even across various markets where there are slight alterations in design, mechanical components largely remain the same across models. So they are cross compatible. An engine from a Scania made for the UK for example will fit directly into a Scania made for Asia. The same goes for practically all of the mechanical components you can think of. And sometimes, overseas business owners can upgrade their fleet with parts only found on UK-spec models. Examples include larger fuel tanks, xenon headlights, lumbar support seats and cabin storage.
So to answer the original question – yes, UK truck parts can be used in non-UK trucks!
There are some limitations, of course. Some truck models differ wildly from region to region. They might have different transmissions and different gearboxes for example that can’t be directly fitted. There’s also the issue of age – used truck parts can’t typically be used in newer model trucks and vice versa. In this instance, the only option may be to buy new truck parts which may mean going through the truck manufacturer.
Many markets such as those in Asia however have come with ingenious ways to make the oddest parts work in trucks. We’ve seen Mercedes truck parts used in Scania trucks for example that wouldn’t work here in the UK but work just fine overseas. So there’s another side to this – you are only limited by your imagination with truck parts.