Harang (5-3) was touched for three runs in the third inning but the Los Angeles offense had two big innings that allowed the Dodgers to sweep a four-game series in Philadelphia for the first time.
Phillies starter Cole Hamels (8-3) saw a string of eight consecutive winning decisions snapped after he gave up six hits and four runs (three earned) in six innings.
Philadelphia staked Hamels to a 3-0 lead off Harang in the third. Hamels started the rally with a single while Mike Fontenot capped it with an RBI single.
Los Angeles clinched the sweep with a four-run ninth that featured a two-run double by Andre Ethier.