A lead introducer includes an insertion-needle assembly configured for receiving an electrical stimulation lead, and a splittable member that defines a lumen configured for receiving a portion of the insertion-needle assembly. The splittable member includes at least two pull-apart tabs disposed on a proximal hub of the splittable member and at least one splittable region extending along at least a portion of a longitudinal length of the splittable member from between the pull-apart tabs. The at least one splittable region is configured for separating when the pull-apart tabs are pulled apart from one another in directions approximately orthogonal to the splittable member. A lead-stabilization feature is configured for receiving, and temporarily retaining, a portion of an electrical stimulation lead extending outward from the splittable member such that the electrical stimulation lead does not move relative to the splittable member when the electrical stimulation lead is received by the lead-stabilization feature.