Hello.
I know the difficulty in identifying parts for these vehicles and I’m not going to answer your question as you've not provided quite enough info. Is it a 3L or has the engine been swapped?
Instead I'll provide a couple of my links. My go to parts catalogue for my van is here:
https://toyota.epc-data.com/regius_ace/lh119v/114894/
Tailor your exact van, based on the frame / VIN plate and use this and the ‘amayama’ catalogue it links through to to search for parts (again you can specify your van. To identify the engine check the number stamped on the block, which is very hard to read or look at the 'V-Belt' reference in the engine part of the above link (once tailored), or post a picture in your 'show us' pages.
For catalogue parts, such as from DENSO or AISIN etc, which are those that lots of manufacturer’s make equivalents for then cross-reference these with Autodoc. Again here you can set up an account and tailor the site to your exact van, well sort of, but all these use the same Toyota parts numbers.
By the way before jumping in and doing the timing belt (once you get the parts) do ensure the timings marks are correctly set. Then, mark the old belt (e.g. felt-pen) and count the number of teeth between the marks.
Mark the new belt in the same way and once it’s fitted, ensure the same tooth count and belt to cog alignment. This is the best way to ensure everything is correct before tensioning and you then hand crank for certainty.
Also, unless you have reason to think the water pump has been changed recently then to this, too. Also consider the auxiliary belts and any other bits and bobs at the front of the engine, such as the fan clutch.
Check the parts via the links and work out your red lines against the known service history. Getting into the front of the engine with enough decent clearance to make the timing job relatively easy is a lot of work in itself. Take your time and protect the radiator with card or whatever you have to hand as space is tight.
If you’ve not got the manuals from https://www.hiacesoutheast.com/hiace-manuals then get them. The electrical manual there is probably the best I’ve seen. There are also lots of repositories for these, but many want you to subscribe or pay. There’s no need. There are also a few on this forum here that have shared around various catalogues. Just search.
Finally, my local Toyota dealership has been very good and I try not to ask them questions I can get answers to elsewhere but sometimes there is no alternative to OEM. I sometimes tag on a related question about the next job when I can’t find answers on the occasional time I’m ordering something from them.
HTH
p.s. I try to avoid eurocar parts and many of the related catalogue-parts providers, but that’s your call.