Paul O’Neill and Ronan Doherty came off the bench to record a 2-1 win away to Bangor.
The home side spurned an early chance when Harry Lynch’s fourth minute penalty hit the post.
However, Ben Arthurs nodded them in front for a deserved lead on 20 minutes.
Visiting boss Gary Haveron rung the changes in the second half and Paul O’Neill nodded them level on 68 minutes before fellow sub Ronan Doherty wrapped up the three points 10 minutes later.
The victory lifts Larne into third place, while the Seasiders stay at the foot of the table.
Bangor: Grogan, C McGuinness, Neale (’57 O’Mahony), Francis, Lynch, Harrison (’85 Devlin), Hassin (’85 Cushnie), Mulvenna (’72 Strachan), Arthurs, McCullough, Hughes (’72 McRoberts)
Subs: McMahon, S McGuinness
Larne: Ferguson, Ridley, Donnelly, Randall (’66 McEneff), O’Hara (’66 McKendry), Millar (’66 Graham), Cosgrove, Sloan, Bent, Gibson (HT O’Neill), Simpson (’54 Doherty)
Subs: Carney, Sandiford
Referee: Ben McMaster
