Front Step Trim For 2013+ Peterbilt 579 models. Add to wishlist Part # : MD615 Categories: 579, 579 Accessories - 117" BBC, 579 Accessories - 123" BBC, Other Accessories, Other Accessories, Peterbilt Truck Parts & Accessories, Trim Accents, Trim Accents Tags: bbc, chrome truck accessories, class 8, deiters, Dieter's, Peterbilt 579, transport truck chrome ❮ ❯ Product Information Product Information Front step trim for 2013+ Peterbilt 579 models. Attaches using supplied hardware and 3M two-sided tape. Sold in pairs. For ordering or pricing information, please visit your local Peterbilt dealership.