Sunderland took the lead through Cuba Mitchell on the half-hour mark, but Jayce Fitzgerald struck back for United just 10 minutes later.
Our impressive start to the second half was rewarded with Shea Lacey’s strike five minutes after the restart, before James Nolan converted a penalty just a few moments later.
Second-half substitute Jayden Jones found a route back into the game for the hosts, but Ethan Wheatley was on target to add our fourth of the afternoon soon after.
Trey Ogunsuyi nodded home Sunderland’s third in the early stages of stoppage time, but Travis Binnion’s side saw the game out well for a hard-fought victory.