Ensure a seamless connection for your towing setup with the Reese Towpower Wiring Adapter. This adapter, with part number 20136, facilitates a reliable and secure link between your vehicle's wiring system and your trailer's lights and brakes. Designed for durability and ease of use, it's an essential component for any towing scenario.Crafted by Reese Towpower, a trusted name in towing solutions, this adapter is a practical accessory for those who regularly tow trailers, boats, or other heavy-duty items. The adapter converts a 4-flat connector to a 5-flat connector, providing the necessary compatibility for a smooth and worry-free journey.