A United XI side continued their good start to their pre-season campaign by coming out 5-1 winners in Scotland.
In front of a crowd of 2,518, the reds went ahead after just 21 seconds when Norwegian striker Joshua King slotted past Chris Smith following a defensive mishap.
The visitors went two up inside 11 minutes when talented attacker Nicky Ajose hit a superb cross-shot from 20 yards out.
It was further bad news for Dunfermline on 16 minutes King grabbed his second, latching on to the end of the through ball of his countryman Magnus Eikrem.
United further proved their superiority just after the half-hour mark when Rodrigo Possebon scored on the counter attack from a Dunfermline corner.
Having made three substitutions, the hosts improved after the break and Andy Kirk pulled them a goal back with a 25-yard free kick.
United were, however, to have the last of the scoring, when William Keane beat sub 'keeper Kyle Allison with a low shot.
The United XI side is next in action at Yeovil next Saturday. Here is a full ticket and travel guide.
United: 1. Conor Devlin, 2. Scott Wootton, 3. Joe Dudgeon, 4. James Chester, 5. Oliver Gill, 6. Rodrigo Possebon, 7. Oliver Norwood, 8. Ravel Morrison, 9. Joshua King, 10. Magnus Eikrem (captian) and 11. Nicky Ajose.
Subs: 12. Ezekiel Fryers, on for 3, 63, 13. Sam Johnstone, unused, 14. Ryan Tunnicliffe, on for 4, 60, 15. Cameron Stewart, on for 7, 46, 16. William Keane, on for 9, 46, 17. Robert Brady, on for 11, 46.