2015-2016 GMC Sierra 2500HD 3500HD Smoke Fog Lights with Switch
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-3972-GMC-006-LGHT
- Manufacturer part number
- K2-3972-GMC-006-LGHT
- UPC
- FL-ZTL-187-SM
- Category
- Lighting
- Shipping weight
- 2.0 lb
Smoke Fog Lights with Switch — 2015–2016 GMC Sierra HD
Pair of smoke-tinted fog lights engineered for your Sierra with integrated switch control. Hard panel construction resists impact and UV fade. Pre-wired harness and switch included for straightforward installation.
Key Features
- Smoke lens - Reduces glare and matches modern truck aesthetics without compromising visibility.
- Integrated switch - Dashboard-mounted control; no additional relay wiring required.
- Direct fit design - Mounts at factory fog light locations with no drilling or cutting.
Specs
- Configuration: Pair (driver + passenger side)
- Finish: Smoke-tinted lens
- Condition: New
- Includes: Fog lights, switch, harness
What's Included
- Left and right fog light assemblies
- Dashboard-mounted switch with integrated wiring harness
Frequently Asked Questions
Do these mount at the factory locations or require new holes?
They mount directly at your truck's factory fog light points — no drilling, cutting, or relocating necessary.
Is the switch plug-and-play or does it need to splice into the dash harness?
The switch comes pre-wired with a complete harness. Connection method depends on your truck's electrical setup — check your service manual or consult an installer if you're unsure about dashboard integration.
Will the smoke tint reduce how bright these lights are?
Smoke tint reduces raw output slightly but maintains functional illumination for fog conditions. If maximum brightness is your priority, compare spec sheets with clear-lens alternatives.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
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Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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