Holders Dawdon Welfare Park will meet Premier rivals Horden CW Supporters Club in the final of the Tommy Burrell Memorial Cup.
The Green Drive men had to fight hard to knock out First Division visitors Easington Lane WMC, winning through 4-2 after an entertaining game.
Robbie Bird led the way with a brace, backed by efforts from man of the match Liam Hodgson and Les Chapman. Jai Young and Steve Ashman notched for never-say-die Lane, whose star perfortmer was Stephen Francis.
In the other semi-final, Horden CW Supporters were always in control against hosts Murton Colliery, comfortably winning 3-1.
Man of the match Jack Pounder weighed in with a brace, while Michael Robson also notched, with defender John Hutton, the home side’s star man, replying for Colliery.
The semi-finals marked the end of the league’s two-week winter break, with a full programme returning this weekend.