The TYC 18-3121-91 Parking/Side Marker Light Assembly is engineered to provide reliable illumination for the front left position of 2004-2007 Ford Econoline models, including the E-350 Super Duty Wagon. This assembly is designed to meet or exceed DOT/SAE standards, ensuring compliance with FMVSS 108 regulations for photometry and safety. Constructed with a durable ABS plastic housing and a PMMA plastic lens, it offers enhanced longevity and resistance to environmental factors. The lens features an amber and clear color combination, delivering optimal visibility and a sleek appearance. The assembly includes the lens and housing components; however, bulbs are not included, allowing for customization based on specific lighting preferences. Installation is straightforward, utilizing a screw-in attachment method that facilitates a secure fit. This product undergoes rigorous cycling tests to ensure quality and durability, providing a dependable lighting solution for your vehicle.