if you plug your chassis number into https://toyota.epc-data.com/regius_ace/ then you should be able to find the part numbers. em/3744 looks wrong (for the Toyota code at least) it's usually of the format 12345-12345
It'll be something like this page - https://toyota.epc-data.com/regius_ace/kzh106g/109437/engine/1107/ but double check the model code from your chassis number.