To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
This Hopkins Plug-In Simple Wiring Harness connects straight to the factory tow package with a 4-pole flat trailer connector. There’s no need for extra converters or wire cutting—the plug-and-lead design gives you everything you need for basic trailer lighting right out of the box.
Instead of tracing wires or opening up panels, this harness plugs right into the vehicle’s existing tow package port. It’s a quick, straightforward job that keeps the factory wiring intact and gives you a dependable connection every time you hook up your trailer.
With its standard 4-flat design, the harness powers your trailer’s running lights, turn signals, and brake lights. That means you get all the essentials for safe towing without any extra adapters or complicated wiring setups.
The durable connectors are built to handle repeated use and weather exposure. The pre-wired leads stay protected and help ensure your lighting stays consistent trip after trip, whether you’re towing a small utility trailer or heading out with weekend gear.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the Hopkins plug in simple wiring harness. This product fits a 2006-2010 Ford Explorer and Mercury Mountaineer. To ensure double check that this is a fit for your vehicle you can always use the vehicle fit guide at etrailer.com. This is going to provide a four way flat trailer connector at the back of your vehicle to power your trailer's signal lights. This is designed for use with a factory tow package. It is compatible with five pole, six pole, and seven pole adapters.
Adapters are sold separately. And it comes with a dust cap for the four way flat connector. That way you can cover up your connection points whenever your plug isn't being used. The unit's going to feature protective connection terminals, that are designed to resist corrosion and it's going to connect quickly and easily. No cutting or splicing required. All you need to do is locate the connection point behind the rear bumper.
That's going to be near the spare tire on the driver side. Plug in your connector. This is custom fit for the vehicle. The plug's going to match up perfectly with the port on the vehicle. It's going to snap lock together for a nice, tight secure fit.
Really that's all there is to it. Once you have that connected, all you need to do is secure any excess or slack in your wiring with the included cable ties. Once your installs complete, the four way connector's going to be stowed beneath the vehicle near the trailer hitch. You can loop it around a safety chain loop on the hitch or you could a mounting bracket to keep the connector secure and easily accessible. Mounting brackets are sold separately and available at etrailer.com if you're interested. It's also recommended that you use a small amount of the included terminal grease on all your electrical connections like the plugs on the vehicle and the four pole connector itself.
That grease is specifically designed to help prevent corrosion to the connection points. That's going to do it for today's look at the Hopkins plug in simple vehicle wiring harness.
Ratings & Reviews
Our factory wire harness was showing its age. This one fit perfectly. I have now put in wiring and trailer hitches in 5 vehicles using trailer.com. They have never let me down and I will continue to be a satisfied customer when needing parts for my trailers or tow vehicles!
Just what I needed will be replacing my old one this weekend
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