12 pin trailer plugs are the top of the line when it comes to trailer connections. Trailer connections serve as an essential conduit between the tow-vehicle and the trailer itβs pulling, and they transmit electrical signals to ensure that the trailerβs brake lights and indicator turn signals turn on and off correctly. 12 pin trailer plugs are ideal for car-to-trailer connections, or caravans or campervans. Most KickAss 12 pin trailer plugs can take up to 6mm of cable, ensuring efficient electrical flow.