TUCSON, ARIZ. ? The house of cards that UCLA has lived in the past month came crashing down Saturday night.

Willie Tuitama, an 18-year-old freshman in his second college start, threw for two early touchdowns, and Arizona rolled for 519 yards in a 52-14 rout of the previously unbeaten and seventh-ranked Bruins.

“It was wild out there,” Tuitama said, “really crazy.”

Arizona, loser of 19 of its last 21 Pac-10 home games, rushed for 320 yards. Mike Bell had 153 yards in 16 attempts, including an eight-yard touchdown run. Gilbert Harris added a career-best 116 yards in 16 attempts, one of them a 17-yarder for a score.

“It was one of those things you dream of,” said Bell, a senior who has experienced so many bad Saturdays of losing football. “It was just a blessing for it to finally happen here.”

Arizona gave second-year coach Mike Stoops by far his biggest victory. It was the highest-ranked team to lose to Arizona (3-6, 2-4) since the Wildcats beat No. 1 Washington, 16-3, on Nov. 7, 1992, in Tucson.

“Obviously, we did not play to our capabilities as an offense, defense, special teams – and we got outcoached as well,” UCLA coach Karl Dorrell said. “It was one of those humble butt-kickings that you’re going to have to take and get yourselves ready to play again next week.”

Hundreds of fans, mostly students, stormed the field at the finish. Some climbed the goalposts in jubilation, but couldn’t bring them down.

The Bruins (8-1, 5-1 Pac-10) had come from behind in the fourth quarter to win in three of their previous four games, including erasing a 21-point deficit last week against Stanford.