Al-Masry entered the game with an away goal advantage as the first leg in Gabon ended with a 1-1 draw.
Al-Masry players hope to reach the competition group stage for the first time in their history, having been eliminated from the play-off round last year.
Egyptian fans have come to know Mounana in recent weeks when the club faced Al-Ahly at CAF Champions League first round.
After signing a new contract with Al-Ahly, defender Ahmed Fathy revealed on Monday that he hopes to achieve the three big competitions with the club.
Al-Ahly succeeded to qualify to the 16th round (group stage) of the CAF Champions League, as they thrashed CF Mounana 3-1 on Saturday in Gabon.
Al-Ahly seeks to complete their first mission when they face Gabonese team CF Mounana in the second leg of the CAF Champions League round of 32 on Saturday.
The Al-Ahly delegation, headed by Al-Ahly board member Tarek Kandil, left Cairo in the early hours of Wednesday with a list of 22 players.
Al-Ahly’s Ahmed Hamoudi was included in the list after the injury that forced him to miss the first game in Cairo.
Al Ahly won a record eight CAF Champions League titles and their players hope for a strong start at their campaign to win the ninth title.
Hamoudi opened the score for Al Ahly at the game against El-Entag El-Harby and he was substituted after 37 minutes for Walid Soliman.