Replacing a worn-out four-wire trailer plug is a quick and easy job. Step 1: Use a pair of diagonal pliers or a wire cutters to remove the existing plug from the trailer. Step 2: Take the old plug end ...

This is the primary cause of trailer-light problems. Symptoms include flickering, fast-blinking, dimness, intermittent operation (often when a trailer ball is used for a ground), and complete failure.

Hitch mounted scene lighting for Investigations and night operations where lighting is hard to come by. This product installs in seconds and plugs into the trailer light plug. Includes Hitch mount, ...

Q:I am having a problem troubleshooting the trailer light plug on a 2002 Chevy Silverado. I get no power there. I've checked all the fuses and they're good. I expect it's a simple grounding problem, ...