Routes a 7-way RV blade socket into the truck bed for convenient 5th wheel or gooseneck hookup — while retaining the factory 7-way connector at the rear bumper. Plugs into existing factory wiring under the truck — no cutting or splicing. OEM connector fits all current model pickups. 90-degree in-bed 7-way socket. 7-foot lead length.
Most pickup trucks come with a 7-way trailer connector at the rear bumper — which is perfect for bumper-pull trailers but inconvenient for 5th wheel and gooseneck trailers, whose wiring connections point forward toward the cab rather than toward the back of the truck. Reaching that bumper connector with a 5th wheel or gooseneck wiring pigtail requires a long, awkward run of cable through the truck bed that can get tangled in the hitch, damaged by the trailer, or stepped on.
The Valterra A10-7007 solves this by adding a second 7-way socket directly in the truck bed — positioned exactly where you need it for 5th wheel and gooseneck hookups. The harness plugs into the factory wiring underneath the truck at an accessible connection point — no cutting, no splicing, no modifying factory wiring. The existing 7-way at the bumper remains fully functional for bumper-pull trailers. A 90-degree 7-way socket on the in-bed end keeps the connection profile low and makes plugging in the trailer's pigtail easy even in tight quarters. Universal OEM connector fits all current model pickups including Ford, GM, Ram, and others.
Routes a full 7-way RV blade socket into the truck bed — right where 5th wheel and gooseneck trailers need to connect
Plugs into existing factory wiring under the truck — no cutting, splicing, or modifying the factory wiring harness required
The factory 7-way connector at the rear bumper remains fully functional — continue using it for bumper-pull trailers
90-degree angle on the in-bed 7-way socket keeps the profile low and makes connecting the trailer pigtail easy in the truck bed
The A10-7007 is a vehicle-end harness — it connects to the tow vehicle, not the trailer. Here's how the installation works: Vehicle Connection (OEM Connector End): The harness features an OEM-style connector that plugs into the factory trailer wiring pigtail or connection point accessible under the truck — typically near the frame behind the rear axle. This is the same wiring that feeds the bumper 7-way. No cutting or splicing required. In-Bed Socket (90-Degree 7-Way End): The 7-foot lead runs from the underbody connection up into the truck bed, where a 90-degree 7-way RV blade socket mounts in a convenient location — truck bed side wall, tailgate post, or wheel well are common choices. Trailer Connection: When towing a 5th wheel or gooseneck, the trailer's 7-way pigtail connects to the in-bed socket — a short, clean connection without routing a long cable through the entire bed. Bumper 7-Way Retained: The factory bumper 7-way remains fully active — use it anytime for bumper-pull trailers without removing the in-bed harness.
This is a vehicle-end harness only — it installs on the tow vehicle and provides the in-bed 7-way socket. The trailer's pigtail or wiring connector is separate and not included with this harness. Truck compatibility: The OEM connector is described as fitting "all current model pickups." However, wiring harness connector designs do change across model years and some older trucks may require a different connection approach. Confirm your specific truck year, make, and model is compatible before ordering — etrailer.com's fitment guide for the A10-7007 lists confirmed compatible vehicles. 7-foot vs. 10-foot length: The A10-7007 is 7 feet long. For longer beds or mounting the socket farther forward in the bed, the A10-7010 (10-foot version) provides additional reach. Measure the distance from your truck's wiring connection point to your desired socket location before choosing a length. Mounting hardware: The harness itself comes with the connectors and lead wire — mounting hardware for the in-bed socket bracket (screws, brackets) may be needed depending on your chosen mounting location.
Installation Steps (Overview): 1. Locate Factory Wiring Connection Point: Find the factory trailer wiring connector or pigtail accessible beneath the truck — typically near the frame behind the rear axle 2. Connect OEM Plug: Plug the A10-7007's OEM connector into the factory wiring connection point 3. Route Lead into Truck Bed: Route the 7-foot lead up through the truck bed floor (typically through an existing grommet or hole near the bed front) — secure with wire clips along the route 4. Mount the In-Bed Socket: Mount the 90-degree 7-way socket at your preferred location in the truck bed — side wall, tailgate post, or wheel well are common choices 5. Connect Trailer Pigtail: When towing a 5th wheel or gooseneck, connect the trailer's 7-way pigtail to the in-bed socket Confirm your truck's wiring access point location before purchase. Refer to Valterra installation instructions for complete guidance. Contact Valterra at valterra.com with installation questions.
In The Package: • (1) A10-7007 5th Wheel / Gooseneck Wiring Harness • 7-Way 90-Degree In-Bed Socket • OEM Vehicle Connector • 7-Foot Lead Wire NOT Included: • Trailer-side wiring pigtail or connector • Mounting screws or brackets for socket (may be needed depending on location) Need More Length? • A10-7010 — Same harness in 10-foot length
Valterra Products: Website: valterra.com Fitment Verification: etrailer.com/Custom-Fit-Vehicle-Wiring/Mighty-Cord/A10-7007.html Since 1981, Valterra Products has been a leading supplier of RV, plumbing, and pool/spa accessories to the recreation industry.
Both versions are identical in features and connector type. Select based on the distance from your truck's factory wiring connection point to your desired in-bed socket location.
Measure the route from your truck's underbody wiring connection point to your desired in-bed socket location before choosing a length. Add a few extra feet for routing around obstacles.