The TYC 20-9978-00 Headlight Assembly is engineered to provide superior illumination and durability for the 2017-2021 Mazda CX-5. This left-side headlight assembly features advanced LED technology, ensuring optimal visibility and safety for drivers. Designed to meet or exceed FMVSS 108 standards, it guarantees compliance with DOT/SAE regulations, offering reliable performance on the road. The assembly includes LED low and high beam bulbs, along with halogen front signal and side marker bulbs, all pre-installed for convenience. Constructed with high-quality plastic housing and a clear, amber lens, it ensures longevity and resistance to environmental factors. The lens is treated with a special coating to prevent hazing and fading, maintaining clear visibility over time. OE-comparable fasteners and mounting tabs facilitate precise fitment and hassle-free installation, reducing downtime during replacement. Rigorous cycling tests validate the assembly's quality and durability, ensuring it withstands the demands of daily driving. Certified ISO9001:2000 and QS9000 facilities produce precision components for all aspects of the light assembly, reflecting TYC's commitment to quality. This headlight assembly is compatible with Mazda CX-5 models from 2017 to 2021, excluding those equipped with Adaptive Front Lighting System (AFS). By choosing the TYC 20-9978-00 Headlight Assembly, fleet operators can enhance vehicle safety and ensure compliance with industry standards, contributing to efficient and reliable fleet operations.