The HDP24-24-31ST is a 31-position receptacle connector from the HDP20 series, featuring a 24 shell size designed for sealed, reliable connections in industrial and commercial transportation environments. This connector accommodates 31 contact positions and is available with standard diameter seals (N designation) or reduced diameter seals (E designation for extra thin wall wire seals with blue ring). The receptacle housing is engineered for crimp-style terminations without solder, utilizing solid or stamped & formed contacts that displace wire strands to create superior bonds. The connector supports multiple keying options and housing colors to prevent incorrect mating and ensure proper circuit configuration. Common applications include power distribution, signal transmission, and control systems in tractors, construction equipment, trucks, boats, and other heavy-duty vehicles where environmental sealing and robust electrical connections are critical.