Andre Iguodala scored a season-best 30 points for Philadelphia, Samuel Dalembert had 20 and the Sixers cut Utah's lead to 105-103 in the final minute. But Boozer and Williams executed the famous Jazz pick-and-roll down the stretch and Korver's free throws quelled Philadelphia's rally.
Mehmet Okur scored 20 points and CJ Miles had 10 of his 12 points in the fourth quarter to help the Jazz win for the fourth time in their last five home games.
Williams, who also scored 15 points, topped his previous season high of 15 assists against the 76ers on Nov. 28. In his last four games against Philadelphia, the Jazz guard has averaged more than 16 assists.
Iguodala made a 3-pointer near halfcourt at the third-quarter buzzer to draw the 76ers to 78-71. Then he hit a jumper to begin the fourth quarter on his way to becoming the first Sixers player to score 30 points this season.
The Jazz slowly built their lead through the final period and Williams put them up 101-91 on a steal and assist from Andrei Kirilenko with 4:02 remaining.
But Iguodala made a 3-pointer and threw a nifty alley-oop to Dalembert to spark a furious comeback. Andre Miller's free throws with 1:31 to play closed the gap to 101-99.
The Jazz then called their familiar "C" play - a pick-and-roll at the free throw line extended with Williams and Boozer - on consecutive possessions, and the Utah power forward made open jump shots.
Four days after being traded from Philadelphia to Utah for Gordan Giricek and a conditional first-round draft pick, Korver found himself at the line in crunch time against his former team.
With 26.1 seconds remaining and the Jazz nursing a two-point lead, Korver made one of two free throws. He then made four consecutive foul shots in the final moments to preserve the victory.
