The TYC 18-5033-01 Side Marker Light Assembly is engineered to provide a precise fit for the left upper position on GMC C/K 1500 models from 1994 to 1999. This assembly is designed to meet or exceed OEM standards, ensuring reliable performance and durability. Constructed with high-quality materials, it features a durable plastic housing and a clear lens, offering enhanced visibility and a sleek appearance. The assembly utilizes a screw-in attachment method, facilitating straightforward installation and secure mounting. Please note that the bulb is not included with this assembly, allowing for customization based on specific lighting preferences. By choosing the TYC 18-5033-01 Side Marker Light Assembly, fleet operators can ensure consistent and reliable lighting performance, contributing to vehicle safety and compliance with road regulations.