Tyreke Evans led the Kings with 21 points and Carl Landry contributed 20 points and 10 rebounds. Dalembert hauled down 15 boards for Sacramento, which won despite the absence of second-leading scorer DeMarcus Cousins.
Cousins didn't make the trip to Phoenix after a locker-room altercation with teammate Donte Greene following Saturday's loss to Oklahoma City.
With the Kings trailing 81-78 entering the final frame, Dalembert began the quarter with four straight points, triggering a 15-2 Sacramento run capped by a 3-pointer and a jumper by Greene.
Steve Nash scored 22 points and distributed 18 assists for Phoenix. Marcin Gortat added 20 points and 12 boards for the Suns, who lost to the Kings at home for the first time in 11 meetings.