The TYC 20-6818-00-9 Headlight Assembly is engineered to provide optimal illumination and safety for 2007-2014 Chevrolet Silverado 1500, 2500, 3500, and 3500 HD models. This left-side headlight assembly is designed to meet or exceed FMVSS 108 standards, ensuring compliance with DOT/SAE regulations for photometry and safety. Manufactured with high-grade materials, it features a durable plastic housing and lens, equipped with halogen bulbs for both low and high beams, as well as front signal lights. The lens is treated with a special coating to prevent hazing and fading, maintaining clear visibility over time. The assembly includes OE-comparable fasteners and mounting tabs, facilitating precise fitment and hassle-free installation. Rigorous cycling tests have been conducted to ensure long-term durability and reliable performance. This headlight assembly is compatible with the right-side counterpart, part number 20-6817-00-9, allowing for a complete replacement when needed.