Product Details: The TYC 20-9512-00 Left Driver Side Headlight Assembly is engineered to provide a reliable and cost-effective replacement for the original equipment on 2014-2020 Toyota 4Runner models. This headlight assembly is designed to meet or exceed DOT/SAE standards, ensuring compliance with FMVSS 108 regulations for photometry and safety. Constructed with high-quality plastic housing and lens materials, it offers durability and resistance to the rigors of daily driving. The assembly includes halogen bulbs for low beam, high beam, front signal light, and front side marker light, facilitating a straightforward installation process without the need for additional components. The lens features a special coating that prevents hazing and fading, maintaining optimal illumination and enhancing the vehicle's aesthetic appeal. Designed for precise fitment, the assembly utilizes OE-comparable fasteners and mounting tabs, ensuring a hassle-free installation process. Rigorous cycling tests have been conducted to verify the assembly's durability and performance, providing confidence in its longevity and reliability. This headlight assembly serves as a direct replacement for the original part, restoring the vehicle's lighting system to its intended functionality and appearance.