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Fits 1999 to 2021 Chevrolet Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD and 8 more models, and 6 more makes. See every vehicle
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. These CURT extension harnesses are designed to work with 7-way RV blade connectors and come with 10 of wire. Ten harnesses are included in each package. They are compatible with certain models of Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota (see application to verify fitment). 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.
Warranty: One-Year Limited Warranty
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999 - 2004 | Chevrolet | Silverado 1500 | - |
| 2005 | Chevrolet | Silverado 1500 | Base, Hybrid, LS, LT, SS |
| 2006 | Chevrolet | Silverado 1500 | - |
| 2007 | Chevrolet | Silverado 1500 | LT, LTZ, WT |
| 2008 - 2015 | Chevrolet | Silverado 1500 | - |
| 2017 - 2018 | Chevrolet | Silverado 1500 | - |
| 2019 | Chevrolet | Silverado 1500 | Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, WT |
| 2007 | Chevrolet | Silverado 1500 Classic | - |
| 2001 - 2003 | Chevrolet | Silverado 1500 HD | - |
| 2005 - 2006 | Chevrolet | Silverado 1500 HD | - |
| 2007 | Chevrolet | Silverado 1500 HD Classic | - |
| 2019 | Chevrolet | Silverado 1500 LD | - |
| 1999 - 2004 | Chevrolet | Silverado 2500 | - |
| 2001 - 2015 | Chevrolet | Silverado 2500 HD | - |
| 2017 - 2019 | Chevrolet | Silverado 2500 HD | - |
| 2021 | Chevrolet | Silverado 2500 HD | - |
| 2007 | Chevrolet | Silverado 2500 HD Classic | - |
| 2001 - 2006 | Chevrolet | Silverado 3500 | - |
| 2007 | Chevrolet | Silverado 3500 Classic | - |
| 2007 - 2014 | Chevrolet | Silverado 3500 HD | - |
| 2015 | Chevrolet | Silverado 3500 HD | LT, LTZ, WT |
| 2017 - 2019 | Chevrolet | Silverado 3500 HD | - |
| 2021 | Chevrolet | Silverado 3500 HD | High Country, LT, LTZ, WT |
| 2009 - 2010 | Dodge | Ram 1500 | - |
| 2010 | Dodge | Ram 2500 | - |
| 2010 | Dodge | Ram 3500 | - |
| 1997 - 1998 | Ford | F-150 | - |
| 1999 | Ford | F-150 | Base, Lariat, Lightning, XL, XLT |
| 2000 - 2007 | Ford | F-150 | - |
| 2008 | Ford | F-150 | FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Limited, STX, THE 60TH ANNIVERSARY EDITION, XL, XLT, XTR |
| 2009 | Ford | F-150 | - |
| 2010 | Ford | F-150 | FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Platinum, STX, XL, XLT |
| 2011 | Ford | F-150 | FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Lariat Limited, Platinum, STX, XL, XLT |
| 2012 | Ford | F-150 | FX2, FX4, Harley-Davidson Edition, King Ranch, Lariat, Platinum, STX, XL, XLT |
| 2013 - 2014 | Ford | F-150 | FX2, FX4, King Ranch, Lariat, Limited, Platinum, STX, XL, XLT |
| 2004 | Ford | F-150 Heritage | SVT Lightning, XL, XLT |
| 1997 - 1999 | Ford | F-250 | - |
| 1999 - 2016 | Ford | F-250 Super Duty | - |
| 1999 - 2026 | Ford | F-350 Super Duty | - |
| 1999 - 2009 | Ford | F-450 Super Duty | - |
| 2010 | Ford | F-450 Super Duty | Harley-Davidson Edition, King Ranch, Lariat, XL, XLT |
| 2011 - 2016 | Ford | F-450 Super Duty | - |
| 2017 - 2023 | Ford | F-450 Super Duty | XL |
| 2024 - 2025 | Ford | F-450 Super Duty | - |
| 2026 | Ford | F-450 Super Duty | XL |
| 1999 - 2016 | Ford | F-550 Super Duty | - |
| 2017 - 2023 | Ford | F-550 Super Duty | XL |
| 2024 - 2026 | Ford | F-550 Super Duty | - |
| 1999 - 2006 | GMC | Sierra 1500 | - |
| 2007 | GMC | Sierra 1500 | Denali, SLE, SLT, WT |
| 2008 - 2015 | GMC | Sierra 1500 | - |
| 2017 - 2018 | GMC | Sierra 1500 | - |
| 2019 | GMC | Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT |
| 2007 | GMC | Sierra 1500 Classic | - |
| 2001 - 2003 | GMC | Sierra 1500 HD | - |
| 2005 - 2006 | GMC | Sierra 1500 HD | - |
| 2007 | GMC | Sierra 1500 HD Classic | - |
| 2019 | GMC | Sierra 1500 Limited | - |
| 1999 - 2004 | GMC | Sierra 2500 | - |
| 2001 - 2015 | GMC | Sierra 2500 HD | - |
| 2017 - 2021 | GMC | Sierra 2500 HD | - |
| 2007 | GMC | Sierra 2500 HD Classic | - |
| 2001 - 2006 | GMC | Sierra 3500 | - |
| 2007 | GMC | Sierra 3500 Classic | - |
| 2007 - 2015 | GMC | Sierra 3500 HD | - |
| 2017 - 2019 | GMC | Sierra 3500 HD | - |
| 2021 | GMC | Sierra 3500 HD | - |
| 2004 - 2010 | Nissan | TITAN | - |
| 2017 - 2024 | Nissan | TITAN | - |
| 2017 - 2020 | Nissan | TITAN XD | - |
| 2022 - 2024 | Nissan | TITAN XD | - |
| 2011 | Ram | 1500 | Laramie, Laramie Longhorn, SLT, ST, Sport |
| 2017 | Ram | 1500 | Big Horn, Express, HFE, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, Outdoorsman, Rebel, SLT, ST, SXT, Special Service, Sport, Tradesman |
| 2018 | Ram | 1500 | Big Horn, Express, Laramie, Laramie Longhorn, Limited, Lone Star, Rebel, SLT, Special Service, Sport, Tradesman |
| 2019 | Ram | 1500 | Big Horn, Laramie, Laramie Longhorn, Limited, Lone Star, Rebel, Tradesman |
| 2020 | Ram | 1500 | - |
| 2021 | Ram | 1500 | Big Horn, HFE, Laramie, Laramie Longhorn, Limited, Limited Longhorn, Lone Star, Longhorn, Rebel, Special Service, Sport, TRX, TRX Launch Edition, Tradesman |
| 2022 | Ram | 1500 | Big Horn, HFE, Laramie, Limited, Limited Longhorn, Lone Star, Rebel, Sport, TRX, Tradesman |
| 2023 - 2025 | Ram | 1500 | - |
| 2026 | Ram | 1500 | Big Horn, Express, Laramie, Limited, Limited Longhorn, Lone Star, RHO, Rebel, Special Service, Tradesman, Tungsten, Warlock |
| 2019 | Ram | 1500 Classic | Big Horn, Express, Lone Star, SXT Plus, Special Service, Warlock |
| 2020 - 2024 | Ram | 1500 Classic | - |
| 2011 | Ram | 2500 | Laramie, Laramie Longhorn, Power Wagon, SLT, ST |
| 2017 | Ram | 2500 | - |
| 2018 | Ram | 2500 | Laramie, Laramie Longhorn, Limited, Power Wagon, SLT, Tradesman |
| 2019 | Ram | 2500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, Power Wagon, Tradesman |
| 2020 - 2026 | Ram | 2500 | - |
| 2011 | Ram | 3500 | Laramie, Laramie Longhorn, SLT, ST |
| 2017 | Ram | 3500 | - |
| 2018 | Ram | 3500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, SLT, ST, Tradesman |
| 2019 | Ram | 3500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, SLT, Tradesman |
| 2020 | Ram | 3500 | - |
| 2021 | Ram | 3500 | Big Horn, Laramie, Limited, Limited Longhorn, Lone Star, Tradesman |
| 2022 - 2026 | Ram | 3500 | - |
| 2010 | Toyota | Tundra | - |
| 2011 | Toyota | Tundra | Base, Limited, SR5 |
| 2012 | Toyota | Tundra | Base, Limited |
| 2013 - 2018 | Toyota | Tundra | - |
| 2019 | Toyota | Tundra | 1794 Edition, Limited, Platinum, SR, SR5 |
| 2020 - 2026 | Toyota | Tundra | - |