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Running wiring over the tailgate or through the cab is a hassle, especially when towing a 5th wheel or gooseneck trailer. This Pollak harness adds a 7-way RV-style connector right in the truck bed for a clean, professional look. It connects directly to your existing factory 7-way so there’s no cutting or splicing—everything plugs in and stays weather-tight.
Standard harnesses can struggle in aluminum truck beds, but this one is designed specifically for them. The connectors and wiring are built to prevent galvanic corrosion and provide a reliable ground, even when mounted through aluminum. That keeps your trailer lights, brakes, and charging circuit working dependably season after season.
The 7-1/2 foot lead gives you room to route the wiring exactly where you want it inside the bed. It’s long enough to mount near your hitch so there’s no need to stretch cords or run cables over the tailgate. This makes hookup easy and keeps everything out of the way while towing.
Installing this harness is straightforward—just plug one end in at the factory 7-way at the bumper and mount the new 7-way in the bed wall using the included bracket location. No frame drilling, no chasing wires. You’ll have a seamless connection that looks factory and works every time you back under your trailer.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Jenny N.
6/27/2023
This harness does require you to pin out the connector that connects to the 7 way that is installed in the truck bed. It is why it typically is the most economically priced. I recommend part # 50-97-410-010 instead. It tees into the US Carr connector behind the seven way at the rear and then plugs into behind the 7 way plug that is installed in the truck bed. I have a video to show the install on a 2021 Ford 250.
Helpful Links
v-install-bargman-truck-bed-trailer-wiring-2021-ford-f-250-super-duty-50-97-410-010.aspx
Jenny N.
6/27/2023
This harness does require you to pin out the connector that connects to the 7 way that is installed in the truck bed. It is why it typically is the most economically priced. I recommend part # 50-97-410-010 instead. It tees into the US Carr connector behind the seven way at the rear and then plugs into behind the 7 way plug that is installed in the truck bed. I have a video to show the install on a 2021 Ford 250.
John
7/25/2024
Love it
John
6/26/2024
Its been flawless for a year.
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Cliff
2/25/2020
Still working great. As with any electrical product, be sure to check the connections turn signals, brakes, lights to ensure youve got good contact when plugging in.