Fitment Information

• GMC Sierra 2500HD/3500HD (2020, 2021, 2022, 2023)

Specs & Features

• Dual S1 Setup Per Side – (4) total lights delivering 2,320 lumens each
  
• Direct OEM Fog Pocket Fitment – Designed for GMC Sierra 2500/3500 factory mounting points
  
• Smart Dual-Function Lighting – Lower pair runs on fog switch, upper pair activates with high beams
  
• Beam Combination Setup:
  
  • S1 Spot (Clear) – Focused forward projection for distance
    
  • S1 Wide Cornering (Clear or Amber) – Broad spread for Zones 1 & 2 visibility
    
• Lens Options:
  
  • Clear – Crisp 5000K daylight output for natural visibility
    
  • Baja Amber – Reduces glare in dust, rain, snow, and fog
    
• Plug-and-Play Integration – Works with factory switches, sPOD, or Switch Pros systems
  
• High Output Efficiency – 2,320 lumens per light at 19.6W / 1.42A
  
• ClearView Technology – Light placed exactly where it’s needed
  
• CopperDrive LED System – Consistent, full-power performance
  
• MoistureBlock Protection – Waterproof, rainproof, and trail-ready durability
  
• uServiceable Design – Replaceable lenses and optics for long-term use
  
• Complete Kit Included – Lights, brackets, wiring harnesses, and hardware
  
• 30-Day Satisfaction Guarantee + Limited Lifetime Warranty

Product Description

This isn’t your typical fog light upgrade—it’s a full lighting system built into your factory location. You get a smart combo of spot and wide cornering beams, which means you’re not just lighting up what’s directly ahead, but also everything around it. Tight trails, dark highways, bad weather—this setup fills in the gaps that standard fog lights leave behind.

What really sets this apart is how it works with your truck. The lower pair runs like your normal fog lights, perfect for daily driving and poor weather. Hit your high beams, and the upper pair kicks in to extend your visibility further down the road or trail. It’s seamless, intuitive, and actually useful—no extra switches or complicated setups unless you want to integrate it with an aftermarket controller.

At the end of the day, this is about having the right light at the right time. More coverage, better depth, and a setup that adapts to how you drive. Baja Designs built the S1 Dual kit for drivers who demand more than basic lighting—and once you experience it, going back isn’t even a question.

Kit Includes: 

• (2x) S1 Spot(Clear)
• (2X) S1 Wide Cornering(Clear or Amber)
• (2x) Mounting Brackets
• (1x) Wiring Harness 640117
• (1x) Trigger Switch Harness 640180
• (2x) Splitter Harness
• All necessary mounting hardware