CURT MANUFACTURING, LLC. part description

There is nothing like the luxury and power that go along with heavy-duty towing. 5th wheel RVs offer a deluxe, home-away-from-home experience unlike any other, while gooseneck trailers possess a strength that far surpasses most other trailer options. As with any trailer, however, 5th wheels and goosenecks must be equipped with the proper lighting and electrical systems, and tend to require even more complex connectors than a standard receiver-type trailer setup. Make things simple with a CURT 5th wheel / gooseneck extension harness. These wiring harnesses are designed to put an extra connector socket in the bed of your pickup truck while still retaining power to the rear connector socket mounted on your bumper. This is done by plugging into the back of the existing original equipment (OEM) harness and routing through the body of the truck to a hole in the truck bed, providing a connector that is ready to accommodate your 5th wheel or gooseneck trailer. This CURT extension harness is designed to work with 7-way RV blade connectors and comes in a length of 10'. It is compatible with certain years of the Ford F150 (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). When you need a towing electrical solution that allows you to switch back and forth between your receiver hitch and specialized trailer hitch, CURT gets you plugged in.


  • Adapts a 7-way round vehicle socket to fit 4-way flat trailer plugs
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals

7-WAY EXTENSION HARNES, 10' PACKAGED

Product Description

10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed, Packaged)

Application Summary

CURT 57010 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Select Ford F-150, F-250, F-350 Super Duty

Spring-loaded dust cover keeps connector clean when not in use

kit plug w cable prong 7way adapter 7pin round pole accessories female parts camper exterior b male light angle function accessory replacement outlet 7blade hokins extender adapters commercial 7prong quick custom 7wire 8ft led circuit plugin

Product Attributes

Box Height In Inches - Xa 0
Box Length In Inches - Xa 0
Box Width In Inches - Xa 0
Electrical Package Type Packaged
Finish - Xa N/A
Item Class - Xa CME
Item Height - Xa 0.000
Item Length - Xa 0.000
Item Width - Xa 0.000
Parcel Allowed - Xa Yes
Product Weight - Xa 0.000
Rate Class - Xa 70.0
Retail Height - Xa 4.000
Retail Length - Xa 9.000
Retail Width - Xa 9.000
Shipping Weight - Xa 3.300
Tariff 301 - Xa No
Warranty One-Year Limited Warranty

Additional Information

Country of Origin (Primary) MX
Harmonized Tariff Code (Schedule B) 8544300000
Harmonized Tariff Code (HTS) 8544300000
NAFTA Preference Criterion Code B
Refurbished Part N
Remanufactured Part N
Warranty Special One-Year Limited Warranty
Warranty Special UOM TX
UPC 00612314570102

Curt®, a Lippert brand, is a leading manufacturer and supplier of a full line of towing products, including heavy-duty equipment. It also offers fifth wheel, gooseneck, weight distribution hitches, ball mounts, trailer balls, electrical components, bike racks, cargo carriers, and other towing accessories. Headquartered in Eau Claire, Wisconsin, Curt Manufacturing, LLC. has come a long way since it was founded as a trailer ball distribution business in 1993. Two years after its founding, it began manufacturing its own first custom-fit receiver hitch, which was soon followed by countless more. Today, Curt remains the FIRST Name in Towing Products® with over a thousand trailer hitch designs for everything, from vans and passenger cars to SUVs and full-size pickups.

Don't know your part number?

Take a photo and we'll identify it!

Recommended Products

More from CURT MANUFACTURING, LLC. (Browse all)