Equip your semi truck to be Ready for the Road Ahead™, with the Truck-Lite 1.23" 19 Series Rectangular 4-LED Marker / Clearance Light, a crucial component for reliable safety lighting. Thanks to its strong output, this replacement light enhances vehicle safety in all types of conditions by providing high visibility. Fashioned with a durable polycarbonate lens for increased heat and impact resistance. FleetPride is your First Click in Heavy Duty®.