Introduction
For 2021–2024 Ford Bronco owners planning to tow trailers, selecting the right wiring harness is essential to ensure proper functionality of trailer lights, brakes, and turn signals. Tekonsha offers two plug-and-play wiring harness kits—models 118849 and 118867—specifically designed for the 2021–2024 Ford Bronco. These kits provide a straightforward installation process with no need for splicing or cutting wires. The wiring harnesses are compatible with both 4-flat and 7-pin trailer plugs, making them suitable for a range of trailer types, including utility trailers and larger RVs.
The installation process and included components vary slightly between the two models. Model 118867 includes the wiring harness and installation instructions, while model 118849 adds installation hardware. A user report from the Ford Bronco community highlights dealer assistance and alternative installation methods, including mounting brackets for securing the wiring harness under the bumper.
This article provides an in-depth look at the Tekonsha wiring harness options, installation procedures, and practical considerations for 2021–2024 Ford Bronco owners.
Tekonsha Wiring Harness Models for 2021–2024 Ford Bronco
Tekonsha offers two plug-and-play wiring harness kits for the 2021–2024 Ford Bronco. Each model is designed to meet different installation needs and preferences.
Model 118867
Model 118867 is a wiring harness kit that includes the wiring harness and installation instructions. It is specifically designed for the 2021–2024 Ford Bronco, excluding models equipped with LED taillights. The kit supports a 4-flat trailer plug and is compatible with standard utility and boat trailers. Installation is straightforward, requiring no cutting or splicing of wires. This model is ideal for users who prefer a streamlined installation process and do not require additional mounting hardware.
Key features: - Plug-and-play design with no splicing or cutting required. - Wiring harness and instructions included. - 4-flat trailer plug output type. - 1-year warranty from Tekonsha.
Model 118849
Model 118849 is a more comprehensive wiring harness kit that includes the wiring harness, installation instructions, and installation hardware. Like model 118867, it is compatible with the 2021–2024 Ford Bronco, excluding LED taillight-equipped models, and supports a 4-flat trailer plug. The addition of installation hardware makes this model suitable for users who need extra components to secure the wiring harness in place.
Key features: - Plug-and-play design with no splicing or cutting required. - Wiring harness, instructions, and installation hardware included. - 4-flat trailer plug output type. - 1-year warranty from Tekonsha.
Both models are designed for ease of use and reliability, ensuring that the Bronco can control trailer brake lights, turn signals, and running lights without requiring modifications to the vehicle's electrical system.
Installation Process for Tekonsha Wiring Harnesses
The Tekonsha wiring harness kits for the 2021–2024 Ford Bronco are designed for plug-and-play installation, eliminating the need for cutting or splicing wires. This simplifies the installation process and reduces the risk of damage to the vehicle's electrical system. However, the exact steps may vary slightly depending on the model chosen and the specific vehicle configuration.
General Installation Steps
Prepare the Vehicle and Tools
Ensure the vehicle is turned off and the key is removed. Gather the necessary tools, which typically include a screwdriver or wrench for securing any mounting hardware.Locate the Vehicle’s Wiring Harness Connector
The Bronco's wiring harness connector is usually located near the trailer hitch. Refer to the installation instructions included with the Tekonsha kit for the exact location. In some cases, access may require removing a panel or bumper cover.Connect the Tekonsha Harness
Plug the Tekonsha wiring harness into the vehicle’s wiring harness connector. The plug-and-play design ensures a secure and correct connection without the need for additional tools.Secure the Trailer Plug
Mount the 4-flat trailer plug in a convenient location, typically under the bumper or near the hitch. If the kit includes mounting hardware (model 118849), use it to secure the trailer plug in place.Test the System
Turn on the vehicle and test the trailer lights, including brake lights, turn signals, and running lights. Ensure all functions operate correctly before using the vehicle for towing.Install Additional Components (if applicable)
If the vehicle will be used to tow larger trailers, consider adding a 7-pin trailer plug. Tekonsha offers a 7-pin connector, or users can use adapter part number 85343 to convert a 4-flat plug to a 7-way system. Additional wiring for electric brakes can be obtained using part number 20506.
Notes on Installation Time and Complexity
Installation time can vary depending on the model and the need for additional components. The Tekonsha wiring harness kits are designed for a relatively simple installation, but users who are not experienced with vehicle electrical systems may benefit from professional assistance. A user report from a 2023 Ford Bronco owner indicates that a Ford dealership quoted 3.5 hours for installation, which included removing a bumper cover to access the wiring harness. This suggests that installation time can increase if additional steps are required.
Considerations for Compatibility and Vehicle Configuration
When selecting a wiring harness for the 2021–2024 Ford Bronco, it is important to consider the vehicle’s configuration and intended use. Tekonsha’s wiring harnesses are compatible with the 2021–2024 Ford Bronco models, but they are explicitly not recommended for vehicles equipped with LED taillights. This limitation is due to the differences in electrical requirements between traditional incandescent bulbs and LED lighting systems. LED systems often require additional resistors or relays to ensure proper operation of the trailer lights.
Users who are unsure of their vehicle’s configuration should consult the owner’s manual or contact the manufacturer for confirmation. It is also advisable to test the wiring harness before relying on it for towing to ensure that all functions are operating correctly.
Mounting and Aesthetic Considerations
The placement of the wiring harness and trailer plug can affect both functionality and aesthetics. Users who prefer a clean, organized appearance may opt for a mounting bracket to secure the wiring harness under the bumper. This approach not only improves the vehicle’s appearance but also helps protect the wiring from damage due to road debris or weather exposure.
A user report from the Ford Bronco community highlights the benefits of using a mounting bracket. The user initially purchased a wiring harness without a bracket, resulting in a loose 4-pin connection. After consulting with a Ford dealership, the user opted for a complete wiring harness setup that included a mounting bracket and a 7-pin connection. This approach provided a more secure and professional installation.
Additional Products and Accessories for Trailer Wiring
Tekonsha offers a range of products to support trailer wiring and brake control systems. These products are designed to work with the company’s wiring harnesses and can be used to expand the functionality of the system for different types of trailers.
T-One Connectors
T-One connectors are a key component of Tekonsha’s wiring harness systems. These connectors are designed for use with boat trailers, utility trailers, and other standard trailer types that use a 4-flat plug. The T-One connector ensures a secure and reliable connection between the vehicle and the trailer.
7-Pin Trailer Plugs
For users who need to tow larger trailers, such as fifth-wheel trailers or recreational vehicles (RVs), a 7-pin trailer plug is recommended. The 7-pin plug provides additional wiring for electric trailer brakes, which are essential for larger trailers. Tekonsha offers a 7-pin trailer connector that is compatible with its wiring harness systems.
Adapters and Additional Wiring
If a 7-pin plug is not available, users can use Tekonsha’s part number 85343 to convert a 4-flat plug into a 7-way system. This adapter allows users to add the necessary wiring for electric trailer brakes without replacing the entire harness. For additional wiring needs, part number 20506 provides the necessary components for electric brake controls.
Warranty and Support
Tekonsha provides a 1-year warranty for its wiring harness kits. This warranty covers defects in materials and workmanship but does not cover damage caused by improper installation or misuse. Users who encounter issues with their wiring harness should contact Tekonsha directly for support.
User Experiences and Dealer Installation Options
User experiences with Tekonsha wiring harnesses for the 2021–2024 Ford Bronco provide valuable insights into the practical aspects of installation and use. One user reported difficulty in securing the wiring harness with a mounting bracket after purchasing a basic wiring harness kit. The user eventually opted for a complete wiring harness setup from a Ford dealership, which included both a 4-pin and 7-pin connection, as well as a mounting bracket. This approach provided a more secure and professional installation.
Another user reported a positive experience with the Tekonsha wiring harness, noting that the plug-and-play design made installation straightforward and efficient. The user also appreciated the 1-year warranty and the availability of additional components, such as T-One connectors and 7-pin plugs, for expanded functionality.
Ford dealerships can also provide installation services for Tekonsha wiring harnesses. According to one user, a Ford dealership quoted $90 for a complete wiring harness setup, including a 4-pin and 7-pin connection and a mounting bracket. The dealership also charged $120 for the installation service, which took approximately 3.5 hours to complete. While this option is more expensive than a do-it-yourself installation, it ensures that the wiring harness is installed correctly and meets all safety standards.
Conclusion
The Tekonsha wiring harness kits for the 2021–2024 Ford Bronco provide a reliable and straightforward solution for trailer lighting and brake control. The plug-and-play design eliminates the need for cutting or splicing wires, making installation accessible to users with varying levels of technical expertise. Both model 118849 and model 118867 offer similar functionality, with model 118849 including additional installation hardware for users who need extra components to secure the wiring harness.
Installation time and complexity can vary depending on the model and the need for additional components such as mounting brackets or 7-pin plugs. Users who are unsure of their vehicle’s configuration or installation needs may benefit from professional assistance, either from a Ford dealership or an authorized installation center.
With a 1-year warranty and a range of additional products and accessories, Tekonsha provides a comprehensive solution for trailer wiring that is well-suited for the 2021–2024 Ford Bronco. Whether users prefer a DIY installation or a professionally installed system, the Tekonsha wiring harness ensures that the vehicle can control trailer lights and brakes effectively and safely.