Outfit your semi truck to be Ready for the Road Ahead™ with reliable safety lighting, with the Truck-Lite 1.63" 18 Series Rectangular 3-LED Marker / Clearance Light Kit. Thanks to its strong output, this replacement light enhances vehicle safety in all types of conditions by providing high visibility. Crafted with a durable polycarbonate lens for advanced heat and impact resistance. FleetPride is your First Click in Heavy Duty®.