Does this part have the two pegs on its reverse side that sit into the retaining holes on the blades on a R13 AWD? Also what are the correct replacement blades?

I can confirm the part does have 2 pegs on the opposite side. The correct blade should be the following; https://www.lsengineers.co.uk/blade-genuine-husqvarna-part-579-65-25-10.html