Aptiv Weather Pack Connection Systems is a series of environmentally sealed electrical connectors designed to withstand exposure to extreme temperatures and moisture. The Aptiv Weather Pack Connection Systems feature tin-plated terminals with special core wings that allow crimp-only connections, eliminating the need for solder. The connector and cavity seals are triple-ribbed and made of self-lubricating silicone. Cavity plugs are available to fill unused cavities. Weather Pack terminals utilize a flex-pin and lap-lock design to alleviate the problem of stress relaxation. They also have dual-locking tangs that lock into the connector cavity and help prevent backing out.