Provide your semi truck with reliable safety lighting, with the Truck-Lite 1.23" Rectangular 2-Incandescent Marker / Clearance Light that ensures you're Ready for the Road Ahead™. To enhance vehicle safety, this replacement light provides high visibility in all types of conditions. Created with a durable polycarbonate lens for advanced protection against impacts and high temperatures. FleetPride is your First Click in Heavy Duty®.