Tekonsha 118658 T-One Trailer Wiring Harness with ModuLite HD Module

The Tekonsha 118658 T-One Connector Assembly provides a complete plug-and-play trailer wiring solution with enhanced circuit protection. This vehicle-specific wiring harness requires no cutting or splicing—simply unplug your vehicle's existing connector and insert the T-One harness for a secure, factory-style connection.

Key Features:

• Upgraded circuit protected ModuLite HD module powers trailer lights directly from the vehicle battery
• Plug-and-play installation with no wire splicing or special tools required
• Vehicle-specific design ensures proper fit and function
• Built-in circuit protection safeguards against shorts and electrical overload
• Includes 4-way flat connector compatible with 5, 6, and 7-pole adapters
• Reduces strain on vehicle's factory electrical system
• Ensures compatibility between tow vehicle and trailer lighting systems

The powered ModuLite HD module is the key advantage of this system, drawing power directly from the battery via a simple positive terminal connection or through the vehicle's trailer wiring port (depending on application). This design prevents overloading your vehicle's existing circuits while providing reliable power to trailer lighting. The included 4-way flat connector works with optional adapters to accommodate virtually any trailer connector configuration.

Tekonsha has been a trusted name in towing safety since 1964, known for manufacturing reliable brake controllers, electrical wiring, and trailer components used by professional towers and recreational enthusiasts alike.