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Towing Equipment → Wiring Adapters → CURT Extension Harness

CURT Extension Harness

Curt Manufacturing
This item requires Vehicle Fitment, please select Vehicle first!
OR if you know the Part Number you need, select from Options below.
CUR-56070
Part #:CUR-56070
Availability:In Stock
Free Shipping
Rating:
ONLY Fits F-350/F-450 Cab & Chassis With 34in. Frame. Fits All Select Models Listed. Requires 2-1/8" hole saw for installation.
Regular Price: $91.62
On Sale For: $87.04
  • Routes a 7-way RV blade socket into truck bed while retaining use of rear socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Allows for easy connection of 5th wheel or gooseneck wiring
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • 7' or 10' extension with right-angle plug for easy installation
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
  • Some applications feature neoprene well nuts isolate steel bolts from aluminum surfaces.
  • Dual-Output Application: Routes a dual-output socket into truck bed while retaining use of rear socket. Provides standard 4-way flat and 7-way RV blade. 4-way flat output connects tail lights, brake lights and turn signals.

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 or trailer hitch. 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 7' or 10' of wire. 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.


California Residents: Prop 65 Warning

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CURT Extension Harness fits the following vehicle(s):

  • 1999 Chevrolet Silverado 1500
  • 2000 Chevrolet Silverado 1500
  • 2001 Chevrolet Silverado 1500
  • 2002 Chevrolet Silverado 1500
  • 2003 Chevrolet Silverado 1500
  • 2004 Chevrolet Silverado 1500
  • 2005 Chevrolet Silverado 1500
  • 2006 Chevrolet Silverado 1500
  • 2007 Chevrolet Silverado 1500
  • 2008 Chevrolet Silverado 1500
  • 2009 Chevrolet Silverado 1500
  • 2010 Chevrolet Silverado 1500
  • 2011 Chevrolet Silverado 1500
  • 2012 Chevrolet Silverado 1500
  • 2013 Chevrolet Silverado 1500
  • 2014 Chevrolet Silverado 1500
  • 2015 Chevrolet Silverado 1500
  • 2016 Chevrolet Silverado 1500
  • 2017 Chevrolet Silverado 1500
  • 2018 Chevrolet Silverado 1500
  • 2007 Chevrolet Silverado 1500 Classic
  • 2001 Chevrolet Silverado 1500 HD
  • 2002 Chevrolet Silverado 1500 HD
  • 2003 Chevrolet Silverado 1500 HD
  • 2005 Chevrolet Silverado 1500 HD
  • 2006 Chevrolet Silverado 1500 HD
  • 2007 Chevrolet Silverado 1500 HD Classic
  • 2019 Chevrolet Silverado 1500 LD
  • 1999 Chevrolet Silverado 2500
  • 2000 Chevrolet Silverado 2500
  • 2001 Chevrolet Silverado 2500
  • 2002 Chevrolet Silverado 2500
  • 2003 Chevrolet Silverado 2500
  • 2004 Chevrolet Silverado 2500
  • 2001 Chevrolet Silverado 2500 HD
  • 2002 Chevrolet Silverado 2500 HD
  • 2003 Chevrolet Silverado 2500 HD
  • 2004 Chevrolet Silverado 2500 HD
  • 2005 Chevrolet Silverado 2500 HD
  • 2006 Chevrolet Silverado 2500 HD
  • 2007 Chevrolet Silverado 2500 HD
  • 2008 Chevrolet Silverado 2500 HD
  • 2009 Chevrolet Silverado 2500 HD
  • 2010 Chevrolet Silverado 2500 HD
  • 2011 Chevrolet Silverado 2500 HD
  • 2012 Chevrolet Silverado 2500 HD
  • 2013 Chevrolet Silverado 2500 HD
  • 2014 Chevrolet Silverado 2500 HD
  • 2015 Chevrolet Silverado 2500 HD
  • 2016 Chevrolet Silverado 2500 HD
  • 2017 Chevrolet Silverado 2500 HD
  • 2018 Chevrolet Silverado 2500 HD
  • 2019 Chevrolet Silverado 2500 HD
  • 2007 Chevrolet Silverado 2500 HD Classic
  • 2001 Chevrolet Silverado 3500
  • 2002 Chevrolet Silverado 3500
  • 2003 Chevrolet Silverado 3500
  • 2004 Chevrolet Silverado 3500
  • 2005 Chevrolet Silverado 3500
  • 2006 Chevrolet Silverado 3500
  • 2007 Chevrolet Silverado 3500 Classic
  • 2008 Chevrolet Silverado 3500 HD
  • 2009 Chevrolet Silverado 3500 HD
  • 2010 Chevrolet Silverado 3500 HD
  • 2011 Chevrolet Silverado 3500 HD
  • 2012 Chevrolet Silverado 3500 HD
  • 2013 Chevrolet Silverado 3500 HD
  • 2014 Chevrolet Silverado 3500 HD
  • 2015 Chevrolet Silverado 3500 HD
  • 2016 Chevrolet Silverado 3500 HD
  • 2017 Chevrolet Silverado 3500 HD
  • 2018 Chevrolet Silverado 3500 HD
  • 2019 Chevrolet Silverado 3500 HD
  • 1995 Dodge Dakota
  • 1996 Dodge Dakota
  • 1997 Dodge Dakota
  • 1998 Dodge Dakota
  • 1999 Dodge Dakota
  • 2000 Dodge Dakota
  • 2001 Dodge Dakota
  • 2002 Dodge Dakota
  • 2003 Dodge Dakota
  • 2004 Dodge Dakota
  • 2005 Dodge Dakota
  • 2006 Dodge Dakota
  • 2007 Dodge Dakota
  • 2008 Dodge Dakota
  • 2009 Dodge Dakota
  • 2010 Dodge Dakota
  • 1995 Dodge Ram 1500
  • 1996 Dodge Ram 1500
  • 1997 Dodge Ram 1500
  • 1998 Dodge Ram 1500
  • 1999 Dodge Ram 1500
  • 2000 Dodge Ram 1500
  • 2001 Dodge Ram 1500
  • 2002 Dodge Ram 1500
  • 2003 Dodge Ram 1500
  • 2004 Dodge Ram 1500
  • 2005 Dodge Ram 1500
  • ...
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