Product media viewer

Product photo, 1 of 2

Picture of Curt Custom Wiring Harness Extension - Blank - 7ft. - Cover - Adds 7-Way
Additional
Curt Manufacturing

Curt Custom Wiring Harness Extension - Blank - 7ft. - Cover - Adds 7-Way

SKU
UPC

Sign in for pricing

Wholesale and contract pricing, warehouse quantities, and ordering are available to dealer accounts.

Availability:
Fargo In Stock
Sioux Falls Check Stock – Call or Chat
Curt Drop Ship Ships in 2-3 Days
Special Order Item
Loading fit options…

Product information

Additional details

Features

  • Extended Length: Provides an additional 7 feet of wiring for enhanced trailer reach and flexibility
  • 7-Way Functionality: Supports all standard trailer towing functions, including brakes, lights, and auxiliary power
  • Rugged Construction: Features high-quality, heavy-gauge wires and a durable, weatherproof jacket to withstand harsh elements
  • Protective Cover Included: Ensures the 7-way socket stays clean and protected when not in use
  • Easy Installation: Designed for a straightforward plug-and-play setup with most existing 7-way connectors
  • Universal Compatibility: "Blank" harness can be custom-wired, ideal for unique or non-standard trailer configuration

Product Description

The Curt 56072 Custom Wiring Harness Extension is expertly engineered to extend your existing 7-way wiring system by an additional 7 feet, providing unparalleled versatility and convenience for towing applications. Built with heavy-duty construction and weather-resistant materials, this harness ensures dependable electrical connections in all conditions. The kit includes a secure cover to protect the 7-way socket from dirt, moisture, and corrosion, guaranteeing long-lasting performance. Its "blank" harness design offers universal compatibility, making it a practical solution for custom trailers, campers, and agricultural equipment.

Key Features:

  • Extended Length: Provides an additional 7 feet of wiring for enhanced trailer reach and flexibility
  • 7-Way Functionality: Supports all standard trailer towing functions, including brakes, lights, and auxiliary power
  • Rugged Construction: Features high-quality, heavy-gauge wires and a durable, weatherproof jacket to withstand harsh elements
  • Protective Cover Included: Ensures the 7-way socket stays clean and protected when not in use
  • Easy Installation: Designed for a straightforward plug-and-play setup with most existing 7-way connectors
  • Universal Compatibility: "Blank" harness can be custom-wired, ideal for unique or non-standard trailer configurations

Ideal For:

  • Towing long trailers, RVs, horse trailers, or campers requiring additional wire length
  • Upgrades or repairs to existing 7-way wiring systems
  • Custom trailer builds or agricultural and utility vehicles with unique wiring needs
  • Owners seeking a reliable and weather-resistant solution for extended trailer connections

Technical Details

Length
9 in
Width
8.25 in
Height
4 in
Weight
2.5 lb
UPC

This part fits

  • Chevrolet Silverado 1500 2019–2026
  • Chevrolet Silverado 1500 LTD 2022
  • Chevrolet Silverado 2500 HD 2020–2026
  • Chevrolet Silverado 3500 HD 2020–2026
  • GMC Sierra 1500 2019–2026
  • GMC Sierra 1500 Limited 2022
  • GMC Sierra 2500 HD 2020–2026
  • GMC Sierra 3500 HD 2020–2026
WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to www.p65warnings.ca.gov