The Roadworks Peterbilt 359 Cowl Extensions are a practical and reliable solution for replacing the factory cowl. Made of stainless steel, these extensions are rivet mounted and come with 8 fusion light holes (lights sold separately). With a perfect fit for most Peterbilt 359 makes and models, these cowl extensions are sold as a pair and come with a 1-year warranty from Roadworks. Enhance the functionality and appearance of your truck with these durable and versatile cowl extensions.