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GMC Sierra HD light bar - 40in Slim PRO LED light bar for 2024+ GMC Sierra 2500/3500 HD with AEV bumpers
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2024+ GMC Sierra 2500/3500HD 40in Light Bar PRO

Regular price $604.99
Light Bar Colormain White light with Amber DRL

What's in the Box

  • (1) 40in curved light bar PRO
  • (2) metal brackets
  • All mounting hardware included
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Off-road use only

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Bolt On, No Drilling

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Vehicle Specific Design

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Lifetime Warranty


2024+ GMC Sierra 2500/3500HD 40in Light Bar PRO

$604.99
Fits: 2024–2026 GMC Sierra 2500/3500 HD
Trims: PRO, SLE, SLT, AT4, Denali, and Ultimate

***Please note - WILL NOT fit previous years, only 2024+

  • Also works with AEV bumpers

 

  • Curved LED light bar PRO, stays slim to the grille for a sleek, built-in look
  • Must remove grille
  • No cutting or drilling required. The kit is a complete bolt on
  • WILL NOT interfere with active grille shutters
  • Doesn't interfere with radiator air flow
  • Metal bracket is powder coated black

CHOOSE LIGHT OUTPUT COLOR:

Each PRO bar is dual-color — a main beam plus a soft amber DRL (daytime running light) backglow.

Option 1 — White + Amber DRL
  • White LED — Super bright, crisp white beam with plenty of light for any adventure. Off-road use only — it blinds oncoming traffic and isn't street-legal.
  • Amber DRL — Purely cosmetic amber glow. Street-safe — gives off little light and won't blind oncoming traffic, so you can run it on the road.
Option 2 — Yellow + Amber DRL
  • Yellow LED — Cuts through dust, fog, snow, and rain better than white light. Ideal for poor driving conditions. Off-road use only.
  • Amber DRL — Same cosmetic amber glow. Street-safe — won't blind oncoming traffic.
  • Combo Pattern: combined spot and driving optics offer a balance between distance and width
  • Uses a TIR (Total Internal Reflection) lens, which is different from our regular slim light bar. The TIR lens collects all of the light from the LED and directly leads them to where you need, drastically reducing glare and improving total efficiency.
  • Higher light efficiency: brighter, longer irradiation distance
  • Housing is upgraded to 304 aluminum. The surface is UV polyester powder coated to protect against UV, salt water, corrosion, fading and scratch resistant.
  • Equipped with thermal management system that automatically adjusts the brightness output according to the external temperatures

M&R doesn't provide a wiring harness. The light bar(s) have over 6ft of wire -- enough to reach your vehicle's AUX switch wiring (if equipped). If your vehicle doesn't have AUX wires, you'll need to source a generic harness separately (available on Amazon/eBay) or build your own.

No AUX wires? Easier option — our Wireless Harness. Powers the lights with no AUX switches and no wires run through the firewall. Clean, simple install.

2024+ GMC Sierra 2500/3500HD 40in Light Bar PRO light bar specs

Free ground shipping on all orders within the continental United States.

We process and ship orders within 3–5 business days. If we anticipate any delay, we'll reach out via email.

  • Hawaii, Alaska & Puerto Rico — $20 flat rate for ground shipping.
  • Canada & International — Shipping rates calculated at checkout. Customs fees, duties, and import taxes are the responsibility of the customer.
  • Overnight & 2nd Day Air — Available at checkout. Orders must be placed by 12:00 PM Pacific Time for same-day shipment.

You'll receive a tracking number via email once your order ships. If you have a special request about your order, reach out — we'll do our best to accommodate. For our complete shipping policy, [click here].

Warranty

We have a lifetime warranty on all our light kits. We stand behind every kit we build — our lifetime warranty isn't fine print, it's a promise. For more information about our warranty and disclaimer, [click here].

M&R Automotive is not responsible for misuse or improper installation of the product. Professional installation is recommended.

HOW TO INSTALL?

Install Video
Wiring

M&R doesn't provide a wiring harness. The light bar(s) have over 6ft of wire -- enough to reach your vehicle's AUX switch wiring (if equipped). If your vehicle doesn't have AUX wires, you'll need to source a generic harness separately (available on Amazon/eBay) or build your own.

No AUX wires? Easier option — our Wireless Harness. Powers the lights with no AUX switches and no wires run through the firewall. Clean, simple install.

Light Output