The centerpiece is Clippers forward Tobias Harris, who scored 34 points for the Clippers Tuesday night, and averages 21 points a game.
The Sixers also get big man Boban Marjanovic and forward Mike Scott.
"We are in the unique position to contend now and we think this trade positions us well for the postseason," 76ers General Manager Elton Brand said. "Tobias is one of the best three-point shooters in the NBA and possesses an innate ability to impact the game on both ends of the floor, while Boban and Mike provide valuable skillsets, size and depth to our team. All three players bring high character to our locker room and we are excited about their fit alongside Joel, Ben, Jimmy and our entire roster."
Rookies Landry Shamet and Wilson Chandler and center Mike Muscala are headed to Los Angeles.
The Sixers also give up four draft picks.
The new Sixers host the Nuggets Friday night.
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