Upgrade your Peterbilt 388 or 389 with Roadworks' Grill Inserts featuring 17 Louver-Style Bars. Made of durable stainless steel, these inserts are sold by kit and fit most Peterbilt 388 and 389 makes and models. Not only do they add a sleek and stylish look to your truck, but they also provide practical benefits such as protecting your radiator from debris and improving airflow. Trust Roadworks for quality and functionality in your truck accessories.