COMPATIBILITY: Replacement for 56407, this trailer harness kit is compatible with Jeep Wrangler JL 2018 2019 2020 2021 2022 2023 2024 2025 & Jeep Gladiator 2020 2021 2022 2023 2024 2025, please check the models before buying Excellent Design & Durable Construction: This 4-pin trailer wiring harness is used to connect trailer tail lights, turn signals, and brake lights. The 4-pin connector is compatible with a variety of trailers, adding versatile towing options to your vehicle. The plug and converter are made of high-strength ABS plastic, brass, and tin-plated terminals, which have excellent conductivity and are very durable Easy installation: Standard 4-way trailer plug, simple plug-and-play design, no need to cut, splice, and weld during installation, plug-and-play design makes your installation easier and more efficient. Comes with detailed installation instructions, you can also search for installation videos on YouTube, which is more convenient Excellent Circuit Protection: HD module converter with the upgraded circuit board and smart chip, which can ensure a stable connection, less heat generation, optimal light intensity, and the right amount of power. Note: You will need to run the hot lead up to your car battery, it needs 12v to operate Protective Dust Cover: For long life and weather resistance, this 4-way trailer lighting harness comes with a rubber dust cover. The dust cover can protect the jeep wrangler trailer wiring connector from dust, dirt, and rain to prevent rust and short circuit, extend the service life