The Peterbilt 389 Glider Deck Plates & Air Line Boxes product line offers high-quality, customizable parts to enhance your truck's functionality and appearance. Featuring durable stainless steel and aluminum deck plates, as well as versatile air line boxes with multiple hookups, this product line provides practical and aesthetic upgrades. Key features include various sizes, cutouts, recessed or on-top air line boxes, and diamond tread finishes. Ideal for fleet managers and custom enthusiasts, these parts optimize your truck's setup while adding style and durability.