United progressed through to the third round of the Cumberland Cup at Bower Park on Wednesday evening.
Aspatria went ahead in the first half when a Kieran McCluskey shot went into the bottom corner.
Josh O'Brien levelled the scores before the break, before a quickfire Dan Hopper brace put the Blues in control.
Freddie O'Donoghue completed the scoring after following up a Romeo Park shot which hit the post to send the Blues through.
United - Breeze, Maddison (O’Donoghue 46), O’Brien, Fleming, Fitzpatrick, Murray (Hodgson 82), Allan (Hopper 52), Hetherington, Chapman, Swinburn, Park. Not used - Randall, Nicholson.
Goals - O’Brien 43, Hopper 66 & 69, O’Donoghue 80.