The TYC 11-5185-91-9 Right Tail Light Assembly is engineered to provide reliable illumination and enhance the safety of 2004-2007 GMC Sierra models. This assembly is designed to meet or exceed FMVSS 108 standards, ensuring compliance with DOT/SAE regulations for photometry and safety. Constructed with high-quality plastic materials for both the lens and housing, it offers durability and resistance to environmental factors. The assembly features a red, clear, and amber lens color configuration, providing optimal visibility for rear and side lighting. Designed for fleetside pickups, it includes OE-comparable fasteners and mounting tabs, facilitating precise fitment and straightforward installation. The assembly undergoes rigorous cycling tests to ensure quality and durability, and it is produced in facilities certified to ISO9001:2000 and QS9000 standards, ensuring precision in all aspects of the light assembly. This tail light assembly is compatible with various GMC Sierra models, including the 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic, 3500, and 3500 Classic, covering model years 2004 through 2007. By choosing the TYC 11-5185-91-9 Right Tail Light Assembly, fleet operators can ensure their vehicles maintain optimal visibility and safety standards, contributing to efficient and secure operations.