The 114018-ZZ is a thermoplastic sealing plug designed for Size 8 cavities in Deutsch connectors used in industrial and commercial transportation applications. This sealing plug is used to fill open cavities and maintain seal integrity by preventing contaminates from entering the connector when all cavities are not utilized by wires. The plug is installed by applying downward pressure to seat it firmly within the cavity. It is part of the Deutsch common contacts family and is compatible with various Deutsch connector series including HD10, HD30, and HDP20 series. Sealing plugs are essential components for ensuring environmental protection and connector reliability in harsh underhood and industrial environments.