Tresound Tail Light Assembly for Chevy & GMC Fleetside (1988–2000) — DOT-certified LED replacement with integrated 3rd brake/cargo

Engineered as a direct-fit aftermarket replacement, this all-in-one assembly combines LED running, brake, and turn signal functions with a separate cargo/third brake lamp to restore rear lighting performance and appearance on classic Chevy and GMC fleetside models. Built with a rugged ABS housing and designed to meet DOT standards, it’s intended for older-body trucks and Blazers, not the stepside bed or newer body-style models introduced after 1999–2000.

What lighting functions are included in this single assembly?

This unit consolidates multiple rear lighting roles into one housing to simplify installation and improve reliability. It uses LEDs for running, braking, and signaling while the reverse lamp requires reuse of your original bulb.

• LED running light for constant rear illumination
• LED brake light for stop signaling
• LED turn signal integrated into the assembly
• Cargo/third brake lamp included in the upper section
• Backup/reverse light uses the existing bulb from your vehicle

Which Chevy and GMC models does this fit?

The fitment targets specific classic models with the old-body (fleetside) rear end. It is not compatible with stepside beds or the updated body design introduced around 1999–2000.

• Chevy & GMC C1500 / K1500: 1988–1999
• Chevy & GMC C2500 / C3500 / K2500 / K3500: 1988–2000
• Chevy Blazer: 1992–1994
• Chevy Silverado: 1994–1998
• Not for stepside bed models or 1999–2000 new body models

How durable and reliable is the Tresound assembly?

Tresound designs these lights using heavy-duty materials and multiple quality checks during production to deliver long-term reliability. The housing resists weather and physical impacts common to truck use, and the DOT certification confirms regulatory compliance for road use.

• Housing made from impact- and weather-resistant ABS plastic
• Manufactured under strict quality-control checkpoints
• DOT-certified for legal road use in applicable regions
• LED modules for longer life than standard incandescent bulbs

How easy is installation and what will I need?

Installation is designed to be straightforward for owners or mechanics familiar with late-’80s to ’90s Chevy/GMC rear assemblies. The part connects to existing wiring harnesses, and you will reuse your original reverse bulb.

• Direct-fit replacement—no major vehicle modifications required
• Plugs into existing rear light wiring harness
• Requires reusing the original backup/reverse bulb
• Installation tools typical for tail light replacement recommended

Who is this for: This Tresound tail light and third brake/cargo lamp is intended for owners, restorers, and fleet managers of classic Chevy and GMC fleetside trucks and selected Blazer/Silverado models who want a DOT-compliant, durable, all-in-one rear lighting solution that preserves original fit and function without the need for extensive wiring changes.