TE Connectivity / Deutsch Automotive part HD36-18-21SN is a high-quality plug with 21 pins, made from durable aluminum material. It features a locking mechanism for secure connection, and is designed for automotive applications. This part comes with a standard pin count of 21 and is nickel-plated for corrosion resistance. It is rated for up to 20 amps and has a size of S in terms of its dimensions. Trust TE Connectivity / Deutsch Automotive for reliable and long-lasting electrical connections in your automotive projects.