Get your semi truck Ready for the Road Ahead™ with reliable safety lighting, with the Truck-Lite 1.23" Rectangular 2-Incandescent Marker / Clearance Light. By providing high visibility in all types of environments, this replacement light enhances overall vehicle safety. Constructed with a durable polycarbonate lens for improved resistance to high temperatures and impacts. FleetPride is your First Click in Heavy Duty®.