The Genuine GM 7-Way Trailer Wiring Electrical Adapter 19366958 is a high-quality product designed for use with trailers. This adapter ensures compatibility between your vehicle and trailer, allowing for easy and reliable connection. Manufactured by GM, this electrical adapter meets the standards set by the industry, making it a trustworthy choice for your towing needs. With its specific manufacturer part number, 19366958, you can trust that this adapter is the right fit for your vehicle and trailer. Shipping is free on this item. Thank you