Seven-Way Electrical Extension by CURT™ - Associated Accessories

Seven-Way Electrical Extension by CURT™ - Associated Accessories

GM Part #19352640

MSRP$79.00*

Easily provide power to your trailer with a GMC Accessories Electrical Extension.

  • Connects electrical power between tow vehicle and trailer
  • Allows trailer to use brake and signal functions
  • Allows you to tow RVs and trailers that meet the towing capacity for your vehicle

About this product

Easily provide power to your trailer with a GMC Accessories Electrical Extension. It contains 7-way connections for optimal convenience.

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  • Connects electrical power between tow vehicle and trailer
  • Allows trailer to use brake and signal functions
  • Allows you to tow RVs and trailers that meet the towing capacity for your vehicle
  • Vehicle-specific style that blends seamlessly with your vehicle’s body and mechanical design
  • Enhances the functionality of your vehicle

Connector Quantity3
Wire Quantity7
Universal Or Specific FitSpecific
Wire ColorsGreen, Yellow, Brown, White, Red, Blue, Black
Length84.00in
End 1 ShapeRound
End 2 ShapeRound
End 2 GenderFemale
End 1 GenderFemale
End 2 Terminal Quantity7
End 1 Terminal Quantity7

Non-GM warranty. Limited warranty by CURT™, 3 years. For more information, contact your dealer

ModelBody StyleTrimYear(s)
Sierra 2500 HDCrew Cab Pickup2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 2500 HDExtended Cab Pickup2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 2500 HDStandard Cab Pickup2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 3500 HDCrew Cab Pickup2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 3500 HDExtended Cab Pickup2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026

Frequently Asked Questions

Yes, the brake controller is compatible with cruise control and adjusts pressure to the terrain/elevation of the trailer and tow vehicle.

Yes. Weight Carrying is where all of the tongue weight of the trailer is carried directly on the rear of the tow vehicle and on the hitch. Weight Distribution is determined by using a weight distributing hitch, and some or all of the tongue weight is evenly distributed throughout from the rear to the front of the tow vehicle.

No. Be sure to find the specific adapter to fit your trailering specifications.