An apparatus for releasably mounting an infant carrier to a wagon includes a first member having a lower portion with a substantially U-shaped cross-section and configured to detachably engage a top portion of an end wall of said wagon, and at least one crossbar fixedly attached to an upper portion of the first member. A second member is detachably affixed in a transverse fashion between two side walls of said wagon. A distance between the first member and the second member is adjustable to suit the locking assembly arranged on the infant carrier and/or on the first and second members in order to releasably mount the infant carrier on the wagon.