An electrical stimulation system includes a lead having lead conductors, electrodes, a lead extension having conductors, and terminals. The system includes a connector having a first and second connection elements that each have sealing members and contacts at least partially disposed within the sealing members. The lead and lead extension are coupled to one of the connection elements, respectively, and the contacts are electrically coupled to lead or lead extension conductors. The connection elements electrically couple the lead conductors with the lead extension conductors. Lastly, the connector includes a coupler engageable with the connection elements to urge the respective sealing members together to resist bodily fluid interaction with the conductors and contacts.
