Tekonsha T-One Trailer Wiring Harness with 4-Way Flat Output
Professional-grade, plug-and-play trailer wiring solution designed for seamless integration with your vehicle's factory electrical system.
Overview
The Tekonsha T-One is a custom-fit vehicle wiring harness that adds a standard 4-way flat trailer connector to your vehicle. By utilizing factory-compatible plugs, this system connects directly into your vehicle’s existing wiring without the need for cutting, drilling, or splicing, ensuring a clean and reliable electrical connection for your towing needs.
R&P Service Insight
Trailer wiring is often the most vulnerable part of a tow setup. This T-One harness removes the "human error" of manual splicing.
- OEM Integrity: Maintains factory warranty by avoiding wire modification.
- ModuLite Tech: Protects your vehicle's sensitive computer systems from trailer surges.
- Weatherproof: Includes a dedicated dust cap to prevent terminal corrosion.
R&P Knowledge Hub
Compatibility: Designed specifically for vehicles equipped with factory tow plugs. It uses T-connectors to "T" into the lighting circuit for seamless signal transfer.
Vehicle / System Fit: Primarily engineered for 2014–2015 Kia Sorento models (EX and LX trims). Always verify the presence of the matching factory port before purchase.
Installation Notes: While the signal connection is plug-and-play, this unit requires a direct 12V lead to the vehicle's battery to power the ModuLite module.
Performance Insight: Features the ModuLite HD module, which draws power directly from the battery rather than the taillight circuits to ensure full brightness and prevent system overload.
R&P Repair Insight
When troubleshooting trailer lighting issues, start with the basics to ensure a long-lasting installation.
- Battery Lead: Ensure the power wire is fused and securely routed away from heat or moving parts.
- Ground Connection: A solid ground to the vehicle frame is essential for the ModuLite module to function correctly.
- Plug Maintenance: Periodically apply dielectric grease to the 4-way terminals to prevent oxidation.
Features
Custom Fit
Plug-and-play design connects directly to factory ports for a fast, tool-free interface with vehicle wiring.
Circuit Protection
Integrated ModuLite HD module prevents electrical damage by isolating the trailer from the vehicle's electronics.
Weather Resistant
Heavy-duty 16-gauge bonded wire and a protective dust cap keep the connector safe in harsh environments.
Reliable Power
Direct battery draw ensures consistent voltage to trailer lights without dimming or flickering.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 118583 |
| Connector Type | 4-Way Flat |
| Voltage | 12 Volt DC |
| Amperage | 7.5 Amp (Stop/Turn) |
| Wire Gauge | 18–16 Gauge |
| Warranty | 1 Year Limited |
| UPC | 16118122473 |
| Material | Impact Resistant Plastic |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Kia Sorento (LX / EX) |
| Primary Fit | 2014 Kia Sorento |
| Secondary Fit | 2015 Kia Sorento |
| Notes | Requires 12V battery connection for operation. |
Included Components
| Quantity | Item |
|---|---|
| 1 | T-One Harness with ModuLite Module |
| 1 | Power Wire (Battery Lead) |
| 1 | In-line Fuse Holder & Fuse Assembly |
| 1 | Hardware Bag (Zip ties, connectors, ground screw) |
| 1 | Protective Dust Cap |
