Cxdar Third Brake Light LED for 2014–2018 Chevy Silverado / GMC Sierra (cargo-light) — IP67 waterproof, plug-and-play

If you need a reliable replacement high-mount brake lamp that matches the factory mounting pattern and resists weather, this Cxdar assembly offers an economical, plug-and-play option. Made from OE-grade ABS and a durable PC lens, the unit is IP67-rated to keep out dust and water while using low-power LEDs for long life. Before ordering, confirm your truck year and whether it includes the cargo light configuration—this part fits most 2014–2018 Silverado 1500 and 2015–2018 Silverado/Sierra 2500HD and 3500HD with cargo-light models.

Will this brake light fit my Chevy Silverado or GMC Sierra?

This assembly is designed to match the factory mounting and wiring layout for specified model years and trims that used a cargo light. It fits 2014–2018 Silverado 1500 and 2015–2018 Silverado/GMC Sierra 2500HD and 3500HD with cargo light provisions. Note that it is not compatible with 2014 Silverado 2500HD/3500HD models.

• Compatible: 2014–2018 Silverado 1500 (cargo light models)
• Compatible: 2015–2018 Silverado/Sierra 2500HD & 3500HD (cargo light models)
• Not compatible: 2014 Silverado 2500HD/3500HD
• Confirm truck year and cargo-light option before purchasing

How durable and weatherproof is this high-mount brake lamp?

Cxdar builds the housing from OE-grade ABS and uses a polycarbonate lens that resists acids, alkalis, impacts, and UV exposure. The assembly includes a high-density foam mounting gasket and meets IP67-level water and dust protection, helping it withstand rain, snow, mud, and regular road debris.

• OE-grade ABS housing for strength and UV resistance
• PC lens: chemical and impact resistant
• High-density foam gasket for a secure, water-tight seal
• IP67 rating: protected against dust and temporary immersion

Is installation difficult and will I need any special tools?

Installation is intended to be straightforward: the lamp uses the truck's existing bolt holes and mounts in place with basic hand tools. It’s a plug-and-play solution in most cases, though some vehicles may require a simple harness pin modification to match the truck’s connector.

• Uses factory bolt locations—no drilling required
• Typical tools: screwdriver, socket set, trim removal tool
• May need minor harness pin change on some model years
• Includes one-year warranty and customer support for fit or installation questions

What performance can I expect from the LEDs and power draw?

The LED array delivers bright, consistent illumination while consuming less power than incandescent bulbs, improving durability and reducing vehicle electrical load. LEDs also heat less and last longer, so the assembly is designed for extended service life under normal driving conditions.

• Low power consumption compared with traditional bulbs
• Bright, quick-responding LED illumination for clear signaling
• Reduced heat output extends component lifespan
• Built for long-term use in regular driving environments

Who is this for: The Cxdar third brake light assembly is aimed at Chevy Silverado and GMC Sierra owners (2014–2018 model years as specified) who need an affordable, factory-style replacement that resists weather and installs without major modification. It suits DIY installers, fleet managers, and anyone seeking an OEM-style center high-mount brake lamp with waterproof construction and a one-year warranty. Always verify your truck’s model year and whether it was equipped with the cargo light option before ordering.