The 2001 Peterbilt 357, 378, 379, 385 Chrome Plastic Passenger Side Window Deflector is a practical and durable addition to your truck. Made of chrome plastic, this deflector is designed to withstand the elements and provide protection for your passenger side window. Sold individually, this product is easy to install and adds a sleek, polished look to your vehicle. Keep your cab comfortable and stylish with this reliable window deflector.