776437-2 is an AMPSEAL 16 series 12-way plug connector designed for environmentally sealed electrical connections in industrial and commercial transportation applications. It features a B key coding configuration with a black housing and gray PLR (Positive Lock Retainer), along with a standard diameter seal for reliable environmental protection. The connector utilizes 1.58 mm contact size and includes an integrated wedge/TPA (Terminal Position Assurance) for secure contact retention. This connector is ideal for harsh environment applications requiring robust, sealed connections in automotive, agricultural, and industrial equipment.