Abstract: A cable-coating extruder head having a head body with a central passageway for an advancing cable, a die insert removably seated in a fixed die body at the forward end of the passageway providing a die aperture through which the cable passes, and a guider insert removably mounted in a fixed guider body within the passageway for centering the cable in the die aperture, wherein both the guide insert and the die insert are insertable forwardly and removable rearwardly through the rearward end of the passageway to enable change of guider and die apertures without displacing the forward end of the head body. The guider insert has a rearward extension projecting beyond the head body for manipulation to facilitate guider insert removal and replacement.