Maximize your exterior with the stainless steel 4-piece upper door under window trim kit designed for select Peterbilt 387 and 587 models. Built from durable 430 or 304 stainless steel, depending on selection, this aftermarket trim set is designed to enhance the area above the door and below the window with a bright, mirror-like accent. The kit includes center and end pieces in a four-piece layout, offering a precise fit for compatible applications. Sold individually, it is intended as a direct replacement-style upgrade and is backed by a manufacturer warranty against defects in materials and workmanship from the date of purchase. Made in the USA, this stainless steel trim kit is a practical choice for drivers looking to refresh exterior styling while maintaining a factory-aligned appearance on heavy-duty trucks.