He was still underage in 1994 and played a key role as Kerry win a first Munster title since 1990, when they overcame Clare in the final.
In the semi-final Kerry had a big win over Limerick, a game where Dwyer would score 3 points, on a 4-17 to 2-05 scoreline.
Another big win was the result, with Dwyer chipping in with 2 points this time, on a 1-21 to 2-05 scoreline.
In the replay Kerry made no mistake, and with 2 points from Dwyer, they ran out winners on a 3-10 to 1-12 scoreline and win a first title at the grade since 1990.
He picked up a Munster championship medal after an extra time win over Cork in the final.
Kerry stated the defense of their Munster title with a repeat of the 95 final where they overcame Waterford on a 2-16 to 1-05 scoreline, with Dwyer at midfield.
Kerry started off their Munster campaign with a big win over Limerickk on a 4-16 to 0-05 scoreline, with 1-01 from midfield from Dwyer.
The replay was to be another close game with Kerry just shading it on a 0-12 to 1-07 scoreline, giving Dwyer this third Munster championship medal.
He would make his championship debut later that summer in the Munster semi final win over Waterford when he appeared off the bunch.
Kerry were back in Croke Park for the semi-final where they took on surprise Ulster champions Cavan, a side who Dwyer had faced the previous year at Under 21 level.
Despite not scoring during the game Dwyer played a key role in a 0-13 to 1-07 victory that seen Kerry win their first in 11 years.
In what was his first full year at senior level Dwyer played in all but one of Kerrys games in both league and championship, scoring 1-02 in 4 championship games, and picking up National League, Munster and All Ireland titles.
1998 seen O Dwyer miss part of the league but he still managed to play in 5 of Kerrys games.
He was back in time for the championship and played in the half forward line as Kerry over came Cork in the Munster semi final on a 1-14 to 1-11 scoreline.
In what was to be a close game Kerry ran out winners by 4 points, 0-17 to 1-10, giving O Dwyer his second Munster title.
Kerry were expected to win and make a second All Ireland final in a row however things didn't work out to plan and Kildare ran out surprise winners on a 0-13 to 1-09 scoreline.
Again coming off the bunch he helped his side to a 3-15 to 0-08 rout and win a third Munster championship medal.
In the semi-final Kerry faced Ulster champions Armagh, O Dwyer once again coming on as a sub in an exciting game that would end in a draw 2-11 each.