TE Connectivity Wire to Board Housings Filler 608421 - TE Connectivity 963143-1, TE Connectivitys MCON 1.2 blind plug, listed as part number 963143-1, is a high-quality component designed for sealing unused connectors. This product is typically utilised in automotive applications to protect electrical systems from dust and moisture. Its robust design ensures reliable performance in demanding environments, with no illumination or switch action involved. TE Connectivity 963143-1 MCON 1.2 Blind Plug 1 pc