Shea Lacey’s hat-trick put United in cruise control, before an own goal from goalkeeper Brian Okonkwo was followed by Louie Bradbury’s late strike.
Soleyman Mandey had put the home side ahead inside the opening 10 minutes, but our young Reds proved to be too much of a threat in a convincing display in the Midlands.
Jayce Fitzgerald was also sent off during the final stages of the game, after picking up two late cautions at Damson Park.
FIRST HALF
The contest didn’t take long to come alive, as the hosts took the lead through Mandey's calm finish from close-range after only three minutes, beating Reds goalkeeper Dermot Mee.