The win marks another remarkable step in the Wanderers history as they join Adelaide United as the only two Australian teams to reach the ACL showpiece.
The Wanderers knocked out the ACL champions Guangzhou Evergrande in the quarter-finals and now they have now also sent last year's runners-up FC Seoul packing in the second leg of their semi-final clash to set up a final showdown with Saudi Arabian club Al Hilal.
The Wanderers' victory came courtesy of a goal in each half from Mateo Poljak and Shannon Cole, also breaks one of the longest streaks in Asian football with a Korean side having featured in the last five ACL finals.
The Wanderers needed nothing less than a win on Wednesday to progress in the competition and they came out with attacking intent and had the best possible start in front of a near capacity crowd of around 19,000.
The Wanderers will host the first leg of the final against Al Hilal on October 25 before the return leg in Saudi Arabia on November 1.