After surrendering their provincial crown in 1965, Kilkenny bounced back the following year by reaching the National league decider. An aggregate 10–15 to 2–15 defeat of New York gave Keher his second National League medal. He later won a third Leinster medal following a 1–15 to 2–6 defeat of Wexford. The subsequent All-Ireland final on 4 September 1966 pitted Kilkenny against Cork for the first time in nineteen years. Kilkenny were the favourites, however, two goals by Colm Sheehan and a third from John O'Halloran gave Cork a merited 3–9 to 1–10 victory. Keher later won a third Cú Chulainn award.