Reilauto Tail Light Assembly for 2016–2019 Chevy Silverado & GMC Sierra — Left Rear Red Lens with Bulb & Harness

Reilauto's left-side rear tail light assembly replaces the factory unit on compatible 2016–2019 Chevy Silverado and GMC Sierra trucks, and comes complete with bulb and harness for quick plug-and-play installation.

If your truck has a cracked, fogged, or nonfunctional rear light, this direct-fit replacement restores rear brake, tail, and signal performance without modifying wiring. Built from durable, OEM-grade plastic with a red lens and covered housing, the assembly aims to match the original look and function for models listed below. Note: models equipped with factory LED tail lights are not compatible.

Which trucks and model years will this Reilauto tail light fit?

This assembly is designed for specific Chevrolet and GMC dually and heavy-duty models. It fits selected Silverado 1500/2500HD/3500HD model years and GMC Sierra 3500HD dual rear wheel versions detailed below.

• Compatible: 2014–2019 Chevy Silverado 1500/2500HD/3500HD (including 2019 Silverado 1500 LD) and 2015–2019 GMC Sierra 3500HD with dual rear wheels.
• Replacement part numbers referenced: GM2800261 and 23431875; some model years (2014, 2015, 2019) require reuse of original bulb and wiring harness.
• Not compatible with trucks that have factory LED tail lights.

How durable and weather-resistant is this tail light assembly?

The housing and lens are made from high-transmittance plastic engineered to resist fading, shocks, and water intrusion. Materials meet common OEM performance expectations so the assembly can withstand road conditions and seasonal exposure.

• High-transmittance red lens for clear signaling and visibility.
• Shockproof and fade-resistant construction to retain appearance and function.
• Waterproof sealing to prevent moisture-related failures.

How easy is installation and what comes in the box?

Reilauto designed this kit for straightforward replacement, typically completed in about ten minutes with no special tools. The package includes the tail light assembly and necessary harness and bulb except where original components must be reused per fitment notes.

• Plug-and-play harness and bulb included for most compatible years.
• Direct-fit alignment with inner and outer mounting points—no trimming required.
• Basic installation instructions provided to guide removal and reinstallation.

What warranty and support does Reilauto provide?

Reilauto backs this tail light assembly with a one-year, unlimited-mileage guarantee and offers customer support for fitment or installation concerns. Their support team will help troubleshoot issues and provide guidance to ensure correct performance.

• One-year unlimited-mileage warranty coverage.
• Support for installation questions and fitment clarifications.
• Assistance if parts arrive damaged or mismatched to vehicle specifications.

Who is this for: This replacement is a practical choice for owners of compatible Chevy Silverado and GMC Sierra heavy-duty trucks who need a reliable, OEM-style left rear tail light without dealer lead times. It's best for vehicles that use incandescent-style wiring (not factory LED setups) and for owners who prefer a fast, tool-minimal swap with warranty-backed support.