Cxdar LED Third Brake Light for 2014–2018 Chevy Silverado / GMC Sierra — Cargo-Style High-Mount, Waterproof IP67

The Cxdar Third Brake Light is a direct-fit, waterproof LED high-mount stop lamp designed for 2014–2018 Chevy Silverado and compatible GMC Sierra trucks with a factory cargo light opening.

If you need a dependable replacement for the center high-mount stop lamp on select Silverado or Sierra models, this Cxdar assembly offers OE-style fit, bright LED illumination, and weatherproof construction. It replaces worn or damaged OEM units and connects using the truck’s existing mounting points for a mostly plug-and-play experience.

Will this brake light fit my 2014–2018 Silverado or Sierra?

This Cxdar light fits 2014–2018 Chevy Silverado 1500 and 2015–2018 Silverado 2500HD/3500HD and the corresponding GMC Sierra trucks that use the cargo lamp style center brake light. Confirm your truck uses the cargo-lamp mounting configuration because it is not compatible with some 2014 2500HD/3500HD models.

• Compatible: 2014–2018 Silverado 1500 models with cargo light opening.
• Compatible: 2015–2018 Silverado 2500HD and 3500HD with cargo lamp style.
• Not compatible: Certain 2014 Silverado 2500HD/3500HD variants—verify before ordering.
• Tip: Check the shape and bolt pattern of your current high-mount lamp before purchase.

How durable and weatherproof is the Cxdar LED assembly?

The housing uses OE-grade ABS and a tough PC plastic lens engineered to resist acids, alkalis, and impact, while an IP67-rated seal keeps out water and dust. High-density foam mounting further stops moisture and road grime from entering the cavity, so the lamp stays reliable through rain, snow, and washing.

• Lens: Impact- and chemical-resistant polycarbonate for long life.
• Housing: OE-grade ABS to withstand road conditions and UV exposure.
• Sealing: IP67 water/dust protection and foam gasket for a tight fit.
• Electrical: Low-power LEDs reduce current draw and heat.

Is installation difficult and will it require vehicle modifications?

Installation is largely straightforward: the unit uses the existing bolt holes on the cab and mounts into place with the factory hardware. Most trucks will be plug-and-play, but some harness pins may need simple modification to match your truck’s connector—no major cutting or drilling is required.

• Mounting: Uses factory bolt holes—no new drilling typically needed.
• Wiring: Generally plugs into the OEM harness; slight pin changes possible.
• Tools: Basic hand tools are sufficient for most installs.
• Time: Typical installation takes under an hour for experienced DIYers.

What performance can I expect from the LED third brake light?

Bright, even LED illumination improves visibility at the rear center of the truck for braking and cargo-area signaling. The LED array is energy-efficient, draws less power than incandescent lamps, and offers extended service life compared with traditional bulbs.

• Light output: Crisp LED brightness for clear brake indication.
• Efficiency: Low power consumption for minimal electrical load.
• Longevity: LEDs last longer than filament bulbs—fewer replacements.
• Maintenance: Sealed construction reduces moisture-related failures.

Who this is for: Drivers who own a 2014–2018 Chevy Silverado or a compatible 2015–2018 GMC Sierra with the cargo-lamp center brake opening, and who want a reliable, weatherproof LED replacement that installs using factory mounting points. It’s aimed at truck owners replacing a cracked, faded, or nonworking third brake light who prefer OE-style fit and improved LED performance without complex vehicle modifications.