Cab Cabin Sleeper Fairing Extenders Upper & Bottom Lower

• Compatible with Peterbilt 579 2013-2021
• Includes both upper and lower sleeper fairing extenders for the left (driver) and right (passenger) side
• Precision-engineered to match the original cab sleeper fairing specifications for a seamless and secure fit with easy installation.
• Heavy-Duty Build for Long-Term Use – Manufactured from aluminum and plastic, to withstand harsh road conditions and provide long-lasting protection and aerodynamic performance.
• Comes with Logo, 2x 22" Windshield Wipers, and Reflective Vest
  

Please note in order to process the shipping promptly Buyer must provide a VALID phone number where they can be reached and contacted by the delivery carrier. Failure to do so may result in delayed shipment. Seller is not liable for any expense associated with failure to provide contact information on Buyers behalf. Seller reserves the right to hold the shipment until the contact with Buyer has been established to cleat all shipping details. Please make sure to provide your full and detailed shipping address information! Contact us if you want to pick up the item or if you want to know more about delivery options in Washington.

Keep your Peterbilt 579 looking sharp and aerodynamically efficient with this complete Cabin Sleeper Fairing Extenders Upper & Lower Full Set, designed specifically for 2013-2021 Peterbilt 579 models. Whether you're a long-haul owner-operator, a fleet manager maintaining a professional appearance across your trucks, or a body shop handling a collision repair, this full set gives you everything you need to restore the sleeper fairing to factory-correct form and function in a single purchase.

This kit includes both the upper and lower sleeper fairing extenders for the driver's side (left) and passenger's side (right), giving you a complete four-piece set that covers the full fairing extension assembly. Each piece is precision-engineered to match the original Peterbilt 579 fairing profile, ensuring a clean, flush fitment with no gaps or misalignment. Constructed from high-quality, impact-resistant thermoplastic, these extenders are built to handle highway vibration, weather exposure, and the everyday demands of commercial trucking. The smooth paintable finish allows body shops and truck owners to easily prime and paint to match any factory or custom color scheme.

Installation is straightforward and designed to align with existing mounting points on the 2013-2021 Peterbilt 579 cab sleeper, minimizing downtime and keeping your truck or fleet back on the road as quickly as possible. No drilling or major modifications are required, making this a practical solution for professional installers and experienced DIYers alike. These aftermarket sleeper fairing extenders deliver the fit and finish you expect at a price that makes sense for both single-truck owners and fleet operations.

At Kozak Parts, we stock this full set right here in our Seattle warehouse, so you can count on fast shipping straight to your door or shop. Don't let damaged or missing sleeper fairings hurt your truck's aerodynamics, fuel efficiency, or professional image. Order today and get your Peterbilt 579 back to looking and performing its best.