It was the Dodgers' second consecutive 2-0 win, having edged San Francisco a night earlier.
The Mets lost their fourth in a row and fell to 1-7 on their 11-game road trip, with three shutout losses. They are scoreless in their last 17 innings after going 24 straight innings without a run last weekend in San Francisco.
Kuroda outpitched countryman Hisanori Takahashi in the sixth major league meeting of starters born in Japan.
Kuroda (8-8) allowed five hits, struck out four and walked one. The right-hander ended a personal three-game skid with his first win since June 26 against the New York Yankees. He is the top Japan-born starting pitcher in major league history, with a 3.67 ERA in 71 games.
Hong-Chih Kuo, who is Taiwanese, pitched the ninth for his third save. The left-hander hasn't given up a run in 16 1-3 innings at home.
Takahashi (7-5) gave up two runs and three hits in seven innings, struck out five and walked two. The left-hander retired 10 in a row during one stretch.
Kuroda intentionally walked Luis Castillo to load the bases in the fifth, then retired Takahashi on a groundout to end the inning.
Kemp provided the Dodgers with an insurance run leading off the seventh, hitting his 17th home run into the left-field pavilion on a 1-0 pitch from Takahashi.
Kemp's two-out double in the first bounced off the right-field wall, allowing Jamey Carroll extra time to score from first after he walked.
NOTES: Mets GM Omar Minaya said manager Jerry Manuel's job is safe despite the team's current slump. Manuel's two-year contract expires at season's end. ... Takahashi and Kuroda faced each other six times in Japan, with Kuroda going 4-0 in those matchups. ... Dodgers manager Joe Torre said RHP Carlos Monasterios (3-2) will start Saturday. Torre said the only other option was RHP James McDonald, but that he's needed more in the bullpen. ... Dodgers bench coach Bob Schaefer served his one-game suspension in connection with Tuesday's loss to the Giants. ... The Dodgers set a record with their 857th consecutive game at home without a rainout. The last washout was on April 17, 2000.