Upgrade your Mack CX CXU GU4's visibility with the Dorman 8885504 Heavy Duty Left Headlight Assembly. Designed to replace part numbers 2M0526AM, 21836340, and 25166303, this headlight comes with three bulbs to ensure you have everything you need for a complete replacement. The polished black housing and clear lens offer a sleek look that complements your vehicle's aesthetic. This halogen headlight assembly boasts a warm white light, providing 1400 lumens to brighten your path. With a 12V wattage and H11 bulb shape, it's a perfect fit for the front left side of your vehicle. It includes all necessary screws for easy mounting and is DOT-certified, guaranteeing both safety and quality. Please note, this product may carry a warning for cancer and reproductive harm (California Prop 65 Warning). Exact item is shown. New open box with original packaging. Has 3 bulb sockets - 2 of 3 bulbs included. Made in Taiwan. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.