CURT 56072 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension & Cover, Select Chevrolet, GMC
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. 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 with a cover for a seamless installation in the truck bed. It is compatible with a certain models of Chevrolet and GMC trucks (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.
Application Summary:
| Year | Make/Model |
|---|---|
| 2019-2021 | Chevrolet Silverado 1500 |
| 2020-2021 | Chevrolet Silverado 2500 HD |
| 2020-2021 | Chevrolet Silverado 3500 HD |
| 2019-2021 | GMC Sierra 1500 |
| 2020-2021 | GMC Sierra 2500 HD |
| 2020-2021 | GMC Sierra 3500 HD |
| Attributes | |
| Box Height in Inches - XA | 4 |
| Box Length in Inches - XA | 11 |
| Box Width in Inches - XA | 9 |
| California Proposition 65 | Yes |
| Country of Origin (Primary) | CN |
| Electrical Package Type | Packaged |
| Emission Code | Legal US |
| Finish - XA | Blank |
| GTIN | 00612314049943 |
| Harmonized Tariff Code (Schedule B) | 8536698000 |
| Hazardous Material Code | N |
| Item Class - XA | OBS |
| Item Height - XA | 0.000 |
| Item Length - XA | 0.000 |
| Item Width - XA | 0.000 |
| Life Cycle Status Code | Available to Order |
| NAFTA Preference Criterion Code | B |
| Parcel Allowed - XA | Yes |
| Product Weight - XA | 0.000 |
| Rate Class - XA | 70.0 |
| Retail Height - XA | 4.000 |
| Retail Length - XA | 9.000 |
| Retail Width - XA | 8.250 |
| SDR Required Flag | N |
| Shipping Weight - XA | 2.500 |
| Tariff 301 - XA | Yes |
| Warranty | One-Year Limited Warranty |
CURT 56072 7' GM Wiring Extension Harness & Cover (Adds 7-Way RV Blade to Truck Bed)
Product Information
- Brand: CURT
- Product Number: 56072
- Availability: 19 in stock

















