Baja Designs OnX6 / S8 / XL Upfitter Wiring Harness 

Universal Fit | Part Number: 640094

Simplify your light installation with the Baja Designs OnX6 / S8 / XL Upfitter Wiring Harness. Designed specifically for vehicles equipped with factory upfitter (auxiliary) switches, this harness allows seamless integration of Baja Designs light bars and pods without complex wiring.

This plug-and-play style harness connects directly to your vehicle’s upfitter system, eliminating the need for additional switches while maintaining a clean, OEM-style installation. It is compatible with Baja Designs OnX6, S8, and XL series lights. 

The harness can also be integrated with aftermarket switch panels such as sPOD, making it a versatile solution for a wide range of off-road builds.

Key Features

• Universal fitment (vehicles with upfitter switches)
• Part Number: 640094
• Designed for OnX6, S8, and XL series lights
• Direct integration with factory upfitter/aux switches
• Clean OEM-style installation
• Compatible with aftermarket switch panels (sPOD, etc.)
• Heavy-duty wiring for off-road use
• Plug-and-play design simplifies installation
• High-quality connectors and sheathing
• Limited lifetime warranty

⚠️ Fitment Note (IMPORTANT)

❗ Designed for vehicles equipped with factory upfitter switches
❗ Compatible with Baja Designs OnX6, S8, and XL lights ONLY
❗ If running two lights on a single harness, you will also need:
   • Baja Designs 613608 (3-Pin OnX6/S8/XL 2-Light Splitter)
❗ Verify your wiring setup and light configuration before ordering

Designed for Upfitter Switch Systems

• Connect directly to factory auxiliary switches
• No need for additional toggle switches
• Clean and professional wiring solution

👉 Perfect for Ford Raptor, Bronco, Ranger, and other upfitter-equipped vehicles

Versatile Lighting Integration

• Works with OnX6 light bars
• Compatible with S8 light bars
• Supports XL series light pods

👉 One harness solution for multiple Baja Designs lights

Expandable Setup Capability

• Can power a single light directly
• Add splitter (PN: 613608) for dual light setups
• Flexible for future upgrades

👉 Easily scale your lighting system

Durable Off-Road Construction

• Heavy-duty wiring and connectors
• Built to withstand vibration and harsh conditions
• Reliable performance in extreme environments

Engineered for off-road durability and long-term reliability.

What’s Included

• Baja Designs Upfitter wiring harness
• Pre-installed connectors and wiring leads
• Installation-ready configuration

❗ Splitter NOT included (required for dual light setups)

Specifications

• Compatibility: OnX6 / S8 / XL lights
• Connection Type: Upfitter switch integration
• Voltage: 12V system
• Connector Type: Weather-resistant connectors
• Application: Single light or dual (with splitter)
• Harness Type: Upfitter (aux switch compatible)

Installation

Designed for upfitter-equipped vehicles
Plug-and-play integration with aux switches
No additional switch required
Use splitter (613608) for dual light setups
Professional installation recommended for optimal routing

Why Buy from Iron Ridge Offroad

✔ Fast Shipping
✔ Authorized Premium Brands
✔ Fast Processing
✔ Off-Road Experts You Can Trust

Simplify your lighting install with the Baja Designs OnX6 / S8 / XL Upfitter Wiring Harness (640094) built for clean integration, easy installation, and reliable performance on any off-road build.