Goals win game and four majors, split by the half time break, made all the difference for Mullaghbawn.
They led by four at the half time interval, 2-3 to 0-5 before pushing on in the second half to stretch that margin.
Jason Murphy was responsible for two goals while Cathal Feeley and Piece Quinn also rattled the net for the winners.
They await the winners of Clann Eireann and Killeavy, who meet next weekend. Crossmaglen take on Madden in the other semi-final.
Culloville battled past Dromintee to book their place in the last eight of the Division Two under 19 championship.
They had to do it the hard way, as they trailed at the half time break by four-points, 2-5 to 1-6 in favour of the hosts.
An early goal at the start of the second half fired the Blues ahead and they didn’t trail for the rest of the game.
Dromintee did get back on level terms on the 40-minute mark, but another Culloville goal put them ahead again.
Culloville eventually ran out five-point winners, 3-10 to 2-8, with senior star Dara Quinn leading from the front.
Quinn top scored with 2-7 while Fergal Kieran also raised a green flag. Charlie Garvey, James King and Ciaran Connolly all chipped in with a point apiece.
Culloville will now meet St Patrick’s in the last eight stage next weekend and will have home advantage.
Tullysaran also made it through to the next weekend’s quarter-finals when they saw off Sarsfields on Sunday.
Goals from Mark McKenna and Conor Mallon were key as the O’Connell’s club won 2-9 to 1-5 in the end.
They will host Carrickcruppen next weekend in the quarter final while Pearse Og, who defeated Wolfe Tones yesterday, meet Setanta.