The TYC Genera 20-6406-00 Left Headlight Assembly is engineered to provide optimal illumination and safety for 2003-2005 Toyota 4Runner models. This assembly offers a direct replacement for the original equipment, ensuring a seamless fit and reliable performance. Constructed with high-quality materials, it features a durable plastic housing and a clear lens designed to withstand various driving conditions. The assembly includes both high and low beam halogen bulbs, facilitating straightforward installation and immediate functionality. Compliance with SAE/DOT standards guarantees that the headlight meets or exceeds industry requirements for photometry and safety. The lens is treated with a special coating to prevent hazing and fading, maintaining clear visibility over time. By choosing the TYC Genera 20-6406-00, fleet operators can enhance vehicle safety and ensure consistent lighting performance, thereby reducing maintenance costs associated with frequent bulb replacements and lens degradation.