Venerable Pemasiri said that the Moha is not one of the 52 mental factors (cetasika).
However, I can find delusion as one of the fourteen unwholesome mental factors.
Perhaps his argument is that you can do wholesome deeds with delusion too.
Also, note that Moha is found in Citta as well.
https://www.accesstoinsight.org/lib/aut ... el322.htmlThe unwholesome mental factors. There are fourteen unwholesome mental factors. The first four listed below are present in all unwholesome states of consciousness. The others are variable.
Delusion (moha) is synonymous with ignorance regarding the Four Noble Truths.