INTRODUCTION：This 7-pin trailer wiring harness extension cable uses high-quality copper core and high-strength plastic connector. Can be connected simultaneously to trailer tail lights, reversing lights, brake lights, turn signals, electric trailer brakes and auxiliary equipment power cords COMPATIBLE MODELS：Please refer to the details page below for detailed applicable vehicle models MATERIAL：This trailer extension harness uses high-quality copper core with good electrical conductivity, high-quality rubber-wrapped material, anti-corrosion and anti-oxidation, and connectors made of high-strength engineering plastic for durability INSTALLATION：This 7-pin trailer wiring harness does not require you to perform complicated operations such as cutting and reconnecting the original wiring harness. You simply change the position of the plug to complete the installation, and it's long enough to accommodate your placement preferences.（2-1/8inch Hole Saw Required for Installation） Tips：Please check the model that this accessory is suitable for. If you have any questions during installation, please contact us

COMPATIBLE MODELS:

2010-2021 Toy-ota Tundra

2019-2021 Ram 1500 Classic

2009-2021 Ram 1500

2010-2021 Ram 2500

2010-2021 Ram 3500

2004-2021 Nis-san Titan

2016-2020 Nis-san Titan XD

2019 GMC Sierra 1500 Limited

2001-2019 GMC Sierra 2500 HD

2007-2019 GMC Sierra 3500 HD

1999-2018 GMC Sierra 1500

2007 GMC Sierra 1500 Classic

2007 GMC Sierra 1500 HD Classic

2007 GMC Sierra 2500 HD Classic

2007 GMC Sierra 3500 Classic

2001-2006 GMC Sierra 1500 HD

2001-2006 GMC Sierra 3500

1999-2004 GMC Sierra 2500

1999-2021 Ford F-350 Super Duty Cab & Chassis with 34 In.Frame

1999-2021 Ford F-450 Super Duty Cab & Chassis with 34 In.Frame

1999-2021 Ford F-550 Super Duty

1999-2016 Ford F-250 Super Duty

1999-2016 Ford F-350 Super Duty Excluding Cab & Chassis

2008-2016 Ford F-450 Super Duty Excluding Cab & Chassis

1997-2014 Ford F-150

2004 Ford F-150 Heritage

1997-1999 Ford F-250

1997 Ford F-250 HD

2019 Chevy Silverado 1500 LD

2001-2019 Chevy Silverado 2500 HD

2007-2019 Chevy Silverado 3500 HD

1999-2018 Chevy Silverado 1500

2007 Chevy Silverado 1500 Classic

2007 Chevy Silverado 1500 HD Classic

2007 Chevy Silverado 2500 HD Classic

2007 Chevy Silverado 3500 Classic

2001-2006 Chevy Silverado 1500 HD

2001-2006 Chevy Silverado 3500

1999-2004 Chevy Silverado 2500