Replace your truck's lighting with the 4 1/8-Inch Fleet Light with 1157 Plug. Built to fit original-equipment-style load light housings behind the cab or sleeper, this round LED fleet light features a sealed polycarbonate lens and housing for a compact, enclosed design. Measuring approximately 4 1/8 inches in diameter and 5/8 inch thick, it includes three mounting holes to support installation without requiring a separate grommet. The integrated 1157 socket supports high- and low-function operation, making it important to select the light color and configuration suited to your application. Available options include different LED and lens color combinations. This universal-fit aftermarket replacement light is sold individually and includes a warranty against defects in workmanship and materials from the date of purchase. It is a special-order item that cannot be canceled or returned, so verify the dimensions, socket compatibility, and intended use before ordering.