Tony Mowbray’s side took an early lead when Ellis Simms headed them ahead in the 19th minute, yet Latics striker Will Keane equalised three minutes before half-time.
Ross Stewart then came off the bench to restore the visitors’ lead, converting a penalty after Patrick Roberts was fouled in the box.
Roberts then scored his third goal of the season to secure the victory, before a stunning strike from Amad made it four.
Here’s how Phil Smith rated each Sunderland player at the DW Stadium:
13. Alex Pritchard (sub) - N
A real blow for Sunderland, he limped off within minutes of his return from a calf injury. N/A Photo: Frank Reid
14. Ross Stewart (sub) - 7
Showed some good touches and got on the scoresheet again, though Jones was very close to saving his penalty. 7 Photo: PA
15. Jay Matete (sub) - 6
Got about the pitch well - brought energy when his side needed it late on. 6 Photo: FRANK REID PHOTOGRAPHER 2022
16. Leon Dajaku (sub) - 6
A more than decent cameo at wing back late on, got forward when he could and looked lively. 6 Photo: Frank Reid