A system and device for threading fishing line through guides mounted on a fishing rod is disclosed, along with a method for using the system or device. A shaft is supported between paired gates. The shaft has a back end to attach to a fishing line. A carrier assembly is configured to hold the paired gates, and to permit mounted guides to pass between open paired gates while being threaded with the fishing line by the shaft, as the shaft is being fixedly retained between other paired gates. A funneling channel of an end cap module is attached to the carrier assembly near the front end of the shaft. While passing the carrier assembly over each of the mounted guides, the funneling channel funnels each of the mounted guides to encircle the front end of the shaft, thereby threading the mounted guides with fishing line.
