The Peterbilt 359 Wide Cowl Extensions by Roadworks are a practical and reliable solution for replacing the factory cowl. Sold as a pair, these extensions come with a 1-year warranty, ensuring their durability and longevity. Designed to fit seamlessly onto your Peterbilt 359, these cowl extensions offer an enhanced aesthetic appeal while maintaining the functionality of your truck. With Roadworks' commitment to quality, you can trust that these cowl extensions will provide a seamless and long-lasting upgrade to your vehicle.