The teams were level after 30 minutes, 1-4 to 0-7, with the Thurles goal arriving in the 27th minute from Darren Flood from a penalty after Jack Lanigan had been fouled.
Conleith Ryan posted six of the St Colman’s points in that opening half.
They were deadlocked a number of times in the second-half with Thurles banging home a second goal in the 35th minute from Lanigan after being set up by Kieran Moloney.
However, the Fermoy team responded very quickly with a goal from David Morrisson a few minutes later.
It was 2-11 to 1-14 after the hour with Thurles securing some good scores from Darragh Tynan, Flood, Lanigan and Jack Morrissey.
James Kearney, Ryan, Eoin Carey and Conor Barry did likewise for Fermoy but there was still no resolution after the hour.
Sub Eoin Purcell delivered a third goal for Thurles in extra-time but points from Brian Roche, Carey and Barry again for St Colman’s ensured that the sides must do it all over again in the replay. In the final analysis it was the right outcome between two very committed sides.
C Ryan 0-10 (0-8f), D Morrisson 1-1, J Kearney, C Barry 0-2 each, E Carey 0-2f, B Roche 0-1, J Molloy 0-1 each.
D Flood 1-7 (0-5f), J Lanigan 1-1, E Purcell 1-0, D Tynan 0-2, J Morrissey 0-2, K Moloney 0-1.
B Hogan (Bride Rovers), L Aherne (Fermoy), J Scannell (Fermoy), J Mannix (Bride Rovers), D O’Leary (Watergrasshill), E Roche (Bride Rovers, E Buckley (Ballyhooly), E Carey (Kilworth), B Roche (Bride), P O’Flynn (Bride), C Ryan (Bride), J Molloy (Fermoy), D Morrisson (Castlelyons), P O’Leary Watergrasshill), J Kearney (Castlelyons).
J Kenny (Castlelyons and C Barry Bride Rovers for Buckley and Molloy, D Collins (Ballyhooly for O’Flynn, M Quinn (Bride Rovers) for Kearney, D O’Connor (Castletownroche) for O’Leary, D O’Neill (Castletownroche for D Morrisson.
K Bracken (Durlas Og), J Hickey (Emeralds), P Melbourne (Moycarkey), J Synott (Roscrea), K Hayes (Moycarkey), Z Johnson (Moycarkey), K Tuohy Moyne-Templetuohy), K Moloney (Durlas Og), J Morrissey (Moycarkey), K Ryan (Upperchurch-Drombane), D Flood (Moycarkey), D Tynan (Roscrea), P Doyle (Galmoy) J Lanigan (Durlas Og), M Hackett (Moycarkey).
E Purcell (Durlas Og) for Doyle, E Morris (Holycross) for Lanigan, J Kirwan (Moycarkey-Borris) Moloney, D Ryan (Kickhams) for K Ryan.
D Fox (Clare).