The ROADWORKS Peterbilt 379 Cowl Extensions are a practical and reliable solution for enhancing your truck's performance. Designed specifically for Peterbilt 379 models, these cowl extensions come with Super 21 Lights and Guards, providing added visibility and protection. Sold as a pair, these extensions are compatible with various truck models and OEM replacement numbers. With a 1-year warranty from Roadworks, you can trust in the quality and durability of these cowl extensions. Upgrade your truck today with this reliable and functional product.