The Rockies acquired Kouzmanoff and cash considerations from the Oakland A's Tuesday for a player to be named later. He was assigned to Triple-A Colorado Springs.
Kouzmanoff, who attended high school in Evergreen, Colo., hit .221 with four homers and 17 RBIs in 46 games for the A's this season. He is hitting .255 in his career.
The Rockies have a full 40-man roster.