The TYC 20-6578-00 Headlight Assembly is engineered to provide a precise fit for the left side of 2005-2011 Toyota Tacoma models without the Sport Package. This assembly is designed to meet or exceed FMVSS 108 standards, ensuring compliance with DOT/SAE regulations for photometry and safety. Manufactured with OE-comparable fasteners and mounting tabs, it facilitates straightforward installation without the need for modifications. The assembly undergoes rigorous cycling tests to verify its durability and performance under various conditions. Produced in facilities certified to ISO9001:2000 and QS9000 standards, it reflects TYC's commitment to quality and precision. A special coating on the lens prevents hazing and fading, maintaining optimal illumination and enhancing driver safety. This headlight assembly is compatible with the right side assembly, part number 20-6577-00, providing a comprehensive solution for both sides of the vehicle. By choosing the TYC 20-6578-00 Headlight Assembly, fleet operators can ensure reliable lighting performance, reduce maintenance downtime, and uphold safety standards across their vehicle fleet.