The TE Connectivity 828985-1 is a wire seal — a silicone elastomer grommet that fits into the cavity of an AMP MCP Interconnection System connector housing, sealing around the wire insulation after the terminal is crimped and inserted. It is the green variant in the 2.5mm System series, supplied in bag packaging. The silicone elastomer material provides the compression and recovery needed to maintain an IP-rated seal over temperature and vibration cycles typical of underhood automotive harnesses.
Seal Function in the MCP System
The wire seal is the secondary barrier — it seals the wire entry point of the connector cavity after the terminal is locked in place. Silicone elastomer holds its seal compliance across the standard automotive temperature range.