Mansour, 21, made his NRL debut in the loss to Melbourne Storm in round nine.
The winger’s performances have not gone unnoticed, picking up the player’s player award in his three matches since then.
“Playing NRL has been my dream ever since I was a kid and started playing footy,” Mansour said.
“I’m just glad that Penrith gave me an opportunity to prove myself.
“I want to stay here as long as I can. They gave me my chance and I want to repay that faith.
“It is a great club and hopefully we can get more wins under our belt and move up the table.”