Milton Bradley added an RBI single in the four-run 11th to complete Los Angeles' second rally against the Diamondbacks in as many nights.
After pitching a scoreless 10th inning, Michael Gosling (0-1) gave up the four runs in the 11th on three hits and two walks.
Cesar Izturis led off the 11th with a triple. After Hee Seop Choi walked, J.D. Drew reached first base safely when Arizona shortstop Royce Clayton fielded his grounder and went to third to try to get Izturis. Kent followed with his double and scored on Bradley's single.
Giovanni Carrara worked a shaky 11th for the Dodgers, allowing run-scoring doubles to Chris Snyder, who had his first four-hit game, and Royce Clayton, while getting one out. Rookie Steve Schmoll then got the last two outs for his first career save.
Schmoll got the win Friday night, when the Dodgers scored four runs in the ninth to win 8-7.
After Los Angeles rallied from a 7-3 deficit for the second straight night to take a one-run lead, the Diamondbacks tied it in the bottom of the ninth.
Tony Clark tripled off the center-field wall with one out, and scored on Chad Tracy's hard grounder off Dodgers reliever Yhency Brazoban's glove. Brazoban (1-0), who had his first major league save the night before, got his first blown save as he threw out Tracy first while Clark crossed the plate.
In the 10th, Brazoban struck out Troy Glaus and Shawn Green after loading the bases with one out.
The Dodgers scored twice in the eighth on RBI singles by Izturis and Choi to take an 8-7 lead.
Arizona reliever Randy Choate walked Jose Valentin to start the inning, and Ricky Ledee forced him with a grounder. Ledee took second on a grounder by Jason Phillips, and Brian Bruney relieved Choate.
Bruney walked pinch-hitter Olmedo Saenz, then gave up the run-scoring singles.
Green and Tony Clark had two-run shots for the Diamondbacks, while Glaus and Chris Snyder hit solo shots.
Arizona starter Javier Vazquez allowed six runs on five hits, including a two-run homer by Kent, and three walks. He also struck out seven.
Vazquez, who came in with a 37.80 ERA after giving up seven runs in 1 2/3 innings against the Chicago Cubs on opening day, had another shaky start -- the Dodgers scored three runs among their first four outs.
Kent hit his homer in the first, and Izturis drew a bases-loaded walk in the second to give the Dodgers a 3-0 lead.
Arizona tied it in the bottom of the second on the homers by Clark and Snyder, and took at 5-3 lead in the third on Green's shot. The Diamondbacks stretched it to 7-3 in the fifth on Glaus' homer and Alex Cintron's sacrifice fly.
The Dodgers got three runs in the sixth on Ledee's two-run double and pinch-hitter Jason Grabowski's sacrifice fly.
Los Angeles starter Scott Erickson gave up six earned runs and seven hits -- including the four homers -- in 4 1/3 innings.
RHP Oscar Villarreal was activated for the game after being recalled from Triple-A Tucson after RHP Greg Aquino went on the DL. ... The Dodgers have beaten the Diamondbacks 19 of the last 22 games. ... Dodgers RF J.D. Drew went 0-for-5, extending his 0-for-22 start with his new team.