FOMIUZY Left Rear LED Taillight Assembly for GMC Yukon/Yukon XL 2015–2020 — Direct-Fit Replacement

FOMIUZY left rear taillight assembly is a direct-fit LED replacement for 2015–2020 GMC Yukon and Yukon XL models that restores brake, turn, running and reverse lighting without rewiring.

This high-quality replacement taillight is engineered to meet original equipment fit and function for GMC Yukon and Yukon XL (Denali, SLE, SLT) model years 2015–2020. It arrives as a complete left/driver-side assembly, pre-tested at the factory, and includes the LED circuits needed for brake, turn signal, running light and backup functions. Before ordering, confirm the part number on your vehicle to ensure compatibility.

Will this taillight fit my 2015–2020 GMC Yukon or Yukon XL?

Yes—this unit is built to match the OEM dimensions and mounting points for Yukon and Yukon XL model years listed. It replaces OE part numbers GM2800268, 84536242 and 23380459, but you should verify your existing part number to avoid fitment issues.

• Compatible with 2015–2018 GMC Yukon (Denali, SLE, SLT)
• Compatible with 2019–2020 GMC Yukon and 2015–2020 Yukon XL variants
• Direct replacement: plugs into original harness with no cutting or splicing

How is the build quality and what functions does it include?

The assembly is made from reinforced materials designed to resist corrosion, water intrusion and everyday wear, extending service life compared with worn OEM units. It integrates separate circuits for running light, brake light, turn signal and reverse lamp so each function operates as intended.

• Durable housing with weatherproof seals to prevent moisture entry
• Integrated LEDs for clear brake, signal and reverse visibility
• Factory-tested to meet or exceed OEM performance

Is installation difficult and do I need extra parts?

Installation is straightforward for most DIYers and professional shops because the assembly is a direct-fit replacement that uses the factory mounting points and connector. No additional wiring or adapters are typically required, but check the connector and bulb/LED socket on your vehicle before starting.

• Pre-wired plug-in connection—no splicing required in most cases
• Includes the single left (driver-side) rear taillight assembly in the package
• Basic hand tools and about 20–40 minutes usually suffice for removal and replacement

What warranty and support come with this taillight?

FOMIUZY backs the product with factory testing and a lifetime warranty service for manufacturing defects, providing after-sales support if the product fails or arrives damaged. Customer service aims to respond promptly to help resolve fitment or quality concerns.

• Each unit factory tested to match OEM electrical and fit standards
• Lifetime warranty for replacement on qualifying defects
• Customer support response promise (excludes Sundays and public holidays)

Who is this for: Vehicle owners and mechanics who need an OEM-style left rear taillight for GMC Yukon/Yukon XL 2015–2020 (Denali, SLE, SLT) seeking a reliable, plug-and-play LED replacement that restores full rear lighting functions and comes with warranty-backed support. Ideal for drivers replacing cracked, fogged, or nonworking rear lighting while avoiding dealer pricing.