The United Arab Emirates Dirham is pegged to the US Dollar of approx 3.67 AED to 1 USD but it could be Yen to AED fluctuations.
Edited to add, I had to check...fluctuations between AED/USD and the Yen is minimal over the last week.
And that assuming that PARTSOUQ are getting their parts exclusively from DXB warehouses.
The GCC is large area with lots of countries selling and trading Toyota spare parts.
This isn’t merely a “I see it on PARTSOUQ” kind of thing.