The Pirates put the tie beyond doubt in the first leg with a 9-1 road win – Stuart Miller (3) and Marc Crute (2) topped their scoring.
The second leg was an equally one-sided affair as Ian Turley’s team romped to an 8-1 success on home ice – Chris Wilson led the way with a hat-trick.
Dundee Comets are also through to the last four after recording an 11-5 overall success against Moray Typhoons.
The Comets won 7-2 on home ice and followed up with a 4-3 victory in the reverse fixture.
Kirkcaldy Kestrels and Edinburgh Capitals are all-square after the first leg of their quarter-final tie.
Graeme Allan’s late goal sealed a 5-5 draw for the Kestrels to leave the return game finely poised.
Dundee Comets 7-2 Moray Typhoons
Moray Typhoons 3-4 Dundee Comets (agg 11-5)
North Ayrshire Wild 1-9 Paisley Pirates
Paisley Pirates 8-1 North Ayrshire Wild (agg 17-2)
Kirkcaldy Kestrels 5-5 Edinburgh Capitals SNL
(Image permission: Al Goold Photo)