Part, affectionately dubbed Darth Maple in darts circles, advanced with a 4-2 win over England's Kevin Painter. Part will next face Englishman James Wade, who swept compatriot Steve Farmer 4-0 in a match that lasted just 45 minutes.
Part is a three-time world champion, last winning in 2008.
The total purse for the tournament is one million pounds (C$1.52 million) with the winner earning 200,000 pounds (C$314,459).
Part dropped the first set before taking a 2-1 lead. Painter came back to make it 2-2 but that's as close as he would get as Part went on to close out the match.
"We were both working really hard out there and it was a tough game to play," Part said. "Kevin and I have a lot of history in the world championship and we have a great deal of respect for each other.
"I have beaten him in two semifinals and that was a good feeling going into this match.''
Wade will certainly pose a formidable challenge for Part. Not only is Wade ranked third in the world but he's registered consecutive 4-0 victories.