Environmentally sealed connectors designed specifically for cable to cable applications on the engine or transmission, under the hood, on the chassis, or in the cab.
Thermoplastic housing and silicone seals (both are temperature rated from -55°C to 125°C) are used to allow the connector to withstand conditions of extreme temperature and moisture.
Cavities: 3.
Deutsch DT Series Connector Material Specifications:
Housings for Plugs and Receptacles: thermoplastic.