Replacing the Peterbilt Rectangular Dome Light Lens in your truck's overhead lighting assembly is a straightforward way to refresh interior illumination. This rectangular dome light lens is an aftermarket replacement designed to fit a range of Peterbilt models including 379, 386, 388 and 389 from about 2006 and newer, and it snaps into the existing dome light housing with no extensive modification needed. It's sold individually in several color options such as clear, amber, blue, green and purple; so you can pick a style that complements your cab's interior. Made as a high-quality replacement part with a warranty against defects in workmanship and materials from the date of purchase, this lens helps protect the light bulb and diffuser assembly while keeping cabin lighting crisp. Because this is an aftermarket part rather than an OEM component, verifying compatibility with your specific truck and light housing before ordering is recommended.