Check out premium Mack Superliner Truck Deck Plates & Air Line Boxes at 4 State Trucks. Our top-quality deck plates and air line boxes, made from stainless steel and aluminum, are built to last. We offer various options, like sectional deck plates and recessed airline boxes, designed to fit your Mack Superliner perfectly. Upgrade your truck with durable and stylish parts today. Shop now at 4 State Trucks.