Cascadia LH Middle Chassis Fairing - 2018-2025 Driver Side DEF Cutout - A22-76266-035

Keep your truck running clean and looking sharp with this premium Cascadia LH Middle Chassis Fairing by FleetPro Parts & Tires. Designed specifically for the Freightliner Cascadia P4 (model years 2018–2025), this driver-side (LH) middle section features a precision-cut opening for the Diesel Exhaust Fluid (DEF) tank, ensuring easy refills without the need to remove body components. By smoothing out the side profile of the chassis, this fairing reduces aerodynamic drag, helping you maintain maximum fuel efficiency while protecting lower chassis components from road spray and debris. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets across the Midwest and nationwide.

Aerodynamic Efficiency: The Cascadia LH Middle Chassis Fairing Advantage

This Cascadia LH Middle Chassis Fairing is built from industrial-grade, impact-resistant composite material to withstand the constant vibration and environmental stress of long-haul trucking. It restores the truck's streamlined side profile, minimizing wind resistance and turbulence around the fuel tanks—a critical factor for fuel economy on Midwest interstates. Note: This panel arrives in a professional finish ready for installation or a custom paint match to your fleet's specific branding. It is a direct replacement for OEM A22-76266-035 and 564.46635, ensuring all mounting points align precisely with the Cascadia frame.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize aerodynamic components that save you money at the pump. This Cascadia LH Middle Chassis Fairing is specifically engineered for trucks configured with a single panel opening on the driver side for DEF access. Don't let a cracked or missing panel ruin your aerodynamics—restore your rig's efficiency with a replacement built for the long haul.

Vehicle Fitment & Compatibility

This chassis fairing panel is precision-engineered for the following applications:

• Make: Freightliner
• Model: Cascadia (P4 Generation)
• Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
• Position: Driver Side (Left Hand - LH) Middle Section
• Configuration: Models requiring a DEF Tank Cutout

Direct Replacement & Cross-Reference Numbers:

This side skirt panel serves as a direct exact-fit replacement for the following part numbers:

• Freightliner OEM: A22-76266-035, A2276266035
• Automann: 564.46635

Technical Specifications

• Position: Driver Side (Left) / Middle Skirt Panel
• Feature: Integrated DEF Tank Access Cutout
• Material: Heavy-Duty, Impact-Resistant Composite
• Finish: Ready to Install or Paint-to-Match
• Installation: Factory Bolt-On (Hardware not included)
• Brand: FleetPro Parts & Tires