YzusGomumu 4-Way Trailer Wiring Harness Compatible with 2019–2024 Hyundai & Kia — OEM-Fit Plug-and-Play, Durable

The YzusGomumu 4-way trailer wiring harness provides a direct-fit, plug-and-play electrical connection for compatible 2019–2024 Hyundai and Kia models, delivering reliable trailer lighting and signal control without modification.

If you tow a small trailer, cargo carrier, or bike rack with a compatible Hyundai or Kia, a factory-style wiring harness keeps brake lights, turn signals, and running lamps synchronized between vehicle and trailer. This YzusGomumu kit is built from durable ABS plastic and precision metal terminals and is designed to match original equipment fit and function so installation is fast and dependable.

Which vehicles will this wiring harness fit?

This harness is tailored to specific Hyundai and Kia model years and matches the OEM connector pattern and OE number 56420. Confirm your vehicle’s year and factory connector before ordering to ensure compatibility.

• 2019–2023 Hyundai Santa Fe
• 2020–2022 Hyundai Palisade
• 2022–2024 Hyundai Santa Cruz and Tucson
• 2022–2024 Kia Carnival, 2023 Kia Sorento, 2020–2022 Kia Telluride

How difficult is installation and what tools are required?

Installation is designed to be straightforward: the harness uses a plug-and-play layout that avoids cutting or splicing when matched to a compatible vehicle. Most owners can fit the harness with basic tools and minimal mechanical experience.

• Plug-and-play connectors align with factory sockets—no soldering required
• Basic tools: trim removal, socket set or screwdriver for access panels
• Follow the supplied instruction sheet for routing and securing the harness

What durability and safety features does the harness offer?

The harness employs robust materials to withstand road conditions and seasonal weather, reducing the chance of corrosion or intermittent electrical faults. Regular visual inspection of connectors and terminals helps maintain a stable trailer connection.

• ABS plastic housing resists impact and moisture
• High-precision metal terminals for consistent electrical contact
• OEM-grade fit minimizes movement and wear at connector joints

How does this harness compare to modifying your own wiring?

Choosing a direct-fit harness preserves factory wiring integrity and avoids cutting into the vehicle’s harnesses. A purpose-built kit reduces installation time and helps maintain resale value by keeping original electrical systems intact.

• No permanent alterations to factory wiring when vehicle-compatible
• Quicker installation than custom splice jobs
• OE-number match simplifies parts lookup and replacement

Who is this for: This YzusGomumu 4-way trailer wiring harness is ideal for Hyundai and Kia owners who need a reliable, factory-like connection for towing small trailers, lights, or accessories and who prefer a plug-and-play replacement to save installation time and avoid modifying factory wiring. It’s also a practical choice for fleet managers and DIY mechanics who prioritize OEM compatibility and durable materials.