He added nine rebounds and Hassan Adams had 14 points for the Wildcats, who improved to 6-2.
The Utes trailing by three, ran off eight straight points to take an lead early in the first half. Marc Jackson hit a three-pointer to tie the game and Richard Chaney, who had 14 points, scored to give the Utes an 11-9 lead.
Andrew Bogut led Utah (5-3) with 20 points and 10 rebounds.
Utah led by 32-29 at halftime.
Arizona's Salim Stoudamire, who entered the game averaging 16 points per contest, was held scoreless.