Abstract: A protective covering system for trailer light connectors which will protect the trailer light connectors from exposure to rain, mud, dirt, road grime, and other adverse environmental conditions. The protective covering system is characterized by a body, a cap, and an optional holder. The body has a lower flexible portion with a slit for easily attaching and detaching the trailer light protective coveting system to the trailer, vehicle, or wiring harness such that the protective covering system can be covered by the cap when not in use. This will keep the inside of the protective covering system from being contaminated and allow it to be readily available for protecting the connectors on the trailer.