The Peterbilt 330, 335, 337, 348, 379, 365, 367, 384, 386, 388, and 389 Grey ZenEclipse Door Window Cover Set is a practical and efficient solution for your truck. This set includes driver and passenger door window covers, as well as a peeper window cover. Made with 7 quilted layers, including an aluminum radiant heat barrier, 1/4 inch foam, and 3 layers of polyester, these covers provide excellent insulation and protection. Designed to fit most Peterbilt 379 solid door windows from 2005 to 2007, and 330/335/337/348 from 2006 to current, as well as 365/367/384/386/388/389 all years, these covers are easy to install and made in the USA.