Durant grabbed nine rebounds in just three quarters of playing time while Daequan Cook added 19 points and five rebounds for Oklahoma City, which will enter the playoffs with second seed in the Western Conference.
Russell Westbrook added 13 points and six assists as the Thunder won despite the absence of guard/forward James Harden, who missed the game with a concussion after being elbowed in the head by the Lakers' Metta World Peace in Sunday's contest.
The NBA Tuesday suspended World Peace for seven games for the flagrant foul.
DeMarcus Cousins led Sacramento with 32 points and seven rebounds.
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