Peterbilt 379 389 Original Diamond Billet Door Sills Original Diamond Billet Door Sills Fits The Following Peterbilt Models (Choose Above) 379 (1986-2007) 389 (2008+) Available In Two Colors (Choose Above) Polished Pyramid-Cut Billet Aluminum Black Anodized Finish Pyramid-Cut Billet Aluminum Kit Inc... See More