Baja Designs Upfitter Switch Wiring Harness for 6th-Gen 4Runner (2025–Present)

The Baja Designs Upfitter Switch Wiring Harness simplifies accessory control by utilizing the factory auxiliary switch system already integrated into the 6th-Gen Toyota 4Runner. This approach preserves a clean interior appearance while delivering dependable electrical performance for demanding off-road applications. The result is a refined, organized solution that enhances usability without compromising vehicle integrity.

Engineered for direct compatibility with the factory auxiliary switch system, the harness provides a true plug-and-play interface. Installation maintains original wiring pathways and eliminates the need for additional interior switches or custom electrical work.

Designed to manage multiple lighting systems, the harness supports up to four Baja Designs lighting kits. This allows drivers to control ditch lights, grille lights, reverse lights, or light bars independently through factory switches.

The structured harness layout promotes clean routing and organized cable management. Preconfigured connections reduce installation time while ensuring consistent, reliable operation under vibration and trail conditions.

Ideal for off-road and overland builds that prioritize professional appearance and functional control, the upfitter harness delivers a factory-level solution for managing auxiliary power. It is well-suited for drivers who demand reliability, simplicity, and long-term durability from their electrical upgrades.