The Optronics Connect-to-Protect Trailer Harness Plug Protectors enable users to shield the male end of a trailer's harness plug when it's not in use. This product comes in two configurations that accomodate 95 percent of all light and medium duty harness connectors, including 4-way flat, 5-way flat, and 7-way round terminal styles. These connectors install on the trailer's hitch coupler arm. Surface mounting the product is simple and fast, since fasteners are included. The only tools needed are a drill and a screwdriver. Flat versions mount with a single screw, and the round version uses four. Each screw requires a 0.125" pilot hole.
