Disclosed is a spinal transconnector device for coupling longitudinal spinal rods on either side of the mid-sagittal plane. The device includes two interconnected rod engagement elements, a first rod engagement elements having a vaulted surface adapted to secure to a first longitudinal spinal rod via an interference fit comprising compression of the first longitudinal spinal rod against the generally vaulted surface and an interference pin that advances into a bore of the first rod engagement element forming an interference fit between the interference pin and the rod engagement element. The interference fit can be associated with elastic deformation of the first rod engagement element occurring as a consequence of the interference pin being advanced through the bore in the engagement element and contacting a surface of the first longitudinal spinal rod.