Prepare your semi to be Ready for the Road Ahead™, with the Grote Turtleback® 12-LED Rectangular Marker / Clearance Light that provides bright and clear lighting. To enhance the visibility of a vehicle to other motorists, this replacement light emits a vivid beam which can be seen in dark or harsh weather conditions. Engineered with a turtleback lens design for maximum durability. FleetPride is your First Click in Heavy Duty®.