Cab Cabin Sleeper Fairing Extenders Upper & Bottom Lower
- Compatible with Peterbilt 579 2022+
- This fairing extender set fits the right passenger side, including both the upper and bottom lower fairings
- 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.
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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 these Cabin Sleeper Fairing Extenders designed specifically for 2022 and newer models. This passenger side set includes both the upper plastic fairing and the lower aluminum fairing extender, giving you a complete right-side replacement solution in a single purchase. Whether you're dealing with road damage, collision repair, or simply restoring a worn-out exterior, these extenders are engineered to deliver a factory-quality fit without the dealership price tag.
Precision-engineered to match the original cab sleeper fairing profile of the 2022+ Peterbilt 579, these extenders are built from a dual-material construction for good reason. The upper portion is crafted from durable, impact-resistant plastic that flexes with the cab and resists cracking under everyday road stress. The lower extender is formed from sturdy aluminum, offering superior strength and resistance to the kicks, debris, and underbody punishment that lower fairings take on a daily basis. Together, they restore the clean, seamless look and aerodynamic performance your rig deserves.
Installation is straightforward and designed to align with factory mounting points, making the job manageable for experienced owner-operators, fleet maintenance crews, and professional body shops alike. No cutting or major modification is required, helping you get your truck back on the road faster and with minimal downtime. The finish is matched to complement the OEM appearance, so your 579 looks cohesive and road-ready right out of the box.
At Kozak Parts, we stock these fairing extenders in our Seattle warehouse and ship fast to customers across the continental United States, so you're not waiting weeks for a critical replacement part. If you're maintaining a single truck or managing an entire fleet of Peterbilt 579s, trust these cab sleeper fairing extenders to deliver the durability, fit, and finish your operation demands. Order today and get your rig back in peak condition.










