Aubameyang was part of the Dortmund side that succumbed to a 4-3 defeat at Anfield in the Europa League earlier this month as the Reds launched a memorable comeback to reach the semi-finals of the competition.
The 26-year-old admitted that he is still struggling to come to terms with the loss, but backed the Reds to now go all the way and lift the trophy.
"Even now I can't believe it. It's unbelievable. But we knew Liverpool could do this. For sure I think Jurgen Klopp was a factor. When we played in Dortmund, everyone was speaking about him and he knows us," Aubameyang told the Meet A Star foundation.
"After 3-1 I don't think we thought 'okay, now we can keep calm', but I think we were a little bit too deep in our own half. Normally we'd have done more pressing and it would have been good.
"Liverpool have something special. Klopp has brought this energy. They can win every time, and even when they're losing they can come back. They have something special I think, and they can win the Europa League for sure."
Liverpool will face Villarreal in the semi-finals of the competition.