12110845 is a cavity plug designed for use with Aptiv low voltage automotive connector systems. This accessory is used to seal unused terminal cavities in connector housings, maintaining environmental protection and preventing contamination. The cavity plug features a white color and does not include a restraint ring. It is compatible with multiple Aptiv connector series including APEX 150 Sealed, CTS 1.2, and HDK 1.2 series connectors. This component is essential for maintaining IP-rated sealing performance in automotive electrical systems where not all connector cavities are utilized.