The TYC 20-9348-00 Headlight Assembly is engineered for the 2004-2007 Buick Rainier, providing a direct-fit replacement for the left side headlight. This assembly includes the lens, housing, reflector, and bulb socket, all designed to meet or exceed Original Equipment (OE) specifications. The lens features a special coating that prevents hazing and fading, ensuring optimal illumination and safety on the road. The sealed construction protects against moisture intrusion, enhancing durability and performance in various driving conditions. The assembly is DOT/SAE compliant, meeting or exceeding FMVSS 108 standards for photometry and safety compliance. OE-comparable fasteners and mounting tabs facilitate precise fitment and hassle-free installation. Rigorous cycling tests ensure quality and durability, and the assembly is produced in facilities certified to ISO9001:2000 and QS9000 standards, ensuring precision components for all aspects of the light assembly.