Prims took the lead in the 15th minute as pressure from Liam Oliver and Graham O'Reilly caused Stapenhill's Steve Dennahy to slide the ball past Ben Gough in the Stapenhill goal. Half time came with Prims holding the lead.
Prims 1-0 Stapenhill.
Prims took a 65th minute free kick and to their surprise Stapenhill's Jordon Stevens collected the loose ball and with a surging run from just inside the Prims half broke through the defence and beat Jack Anderson in the Prims goal for Stapenhill's equaliser.
Parity only last 2 minutes as Toby Howard restored the lead for Prims in the 67th minute when Ben Gough was called upon to make a great save only to see the ball break to Howard who confidently lifted the ball over Gough and scored what was to be the winning goal for Prims.
Prims 2-1 Stapenhill.
Prims will now face Staffordshire side Hilton Harriers in the next round.