What This Panel Is
The rear side fairing is the aft aero panel on the passenger side of a Cascadia, running behind the cab and closing out the gap between the sleeper or cab skirt and the frame. It is a molded body panel, not a structural member. Its job is airflow management, and a broken one costs fuel every mile it stays on the truck.
This is the right-hand piece. Left and right are not interchangeable — the contour, the mount hole pattern, and the closeout edges are mirrored. Stand at the rear of the truck looking forward to confirm which side you are ordering, or read the number off the back of the panel you are pulling.
Our catalog references this as item 13 in the Cascadia fairing group. If you are working off a body panel diagram, match the callout position before you match the number, because several Cascadia fairing panels share similar shapes at a glance.
Why 22-74263-011 Crosses Here
22-74263-011 is the Freightliner number for the same right-hand rear side fairing position. 22-74263-001 is the aftermarket direct replacement covering that number. The base sequence 22-74263 is the panel family; the trailing digits separate hand, revision, and finish within that family, which is why the two numbers land on the same physical part.
PartStop is not affiliated with, endorsed by, or authorized by Freightliner or Daimler. The Freightliner number is printed here so you can identify the part you already have. Use it to confirm you are in the right panel group, then verify against the truck.
A cross-reference is a starting point, not a fitment promise. Cascadia body panels changed across model generations and sleeper configurations. Confirm by VIN, or by reading the raised or stamped number on the inside face of the old fairing, before you commit to the order.
Inspect Before You Order
Pull the old panel and look at the mounting hardware and brackets, not just the fairing. Most Cascadia side fairings fail at the fastener bosses first — the panel flexes, the boss elongates, the fastener works loose, and then wind load tears a chunk out of the edge. New panel on old stretched brackets will fail the same way inside a year.
Check the mating panel forward of this one and the closeout seals along the bottom edge. If the forward panel is also cracked, the alignment will fight you during install. Note the fastener count and type while the old panel is off, so you have the hardware staged before the new fairing goes on.
22-74263-001 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 22-74263-001. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Freightliner | 22-74263-011 |
Frequently asked questions
Is 22-74263-001 the same as 22-74263-011?
22-74263-001 is our aftermarket direct replacement covering the Freightliner number 22-74263-011 for the Cascadia right-hand rear side fairing. They occupy the same position on the truck. Confirm by VIN or by the number on the panel you are removing before ordering.
Can I run this on the driver's side?
No. This is the right-hand panel. The left-hand fairing is a mirrored part with a different contour and mount pattern, and it will not line up on the passenger side. Order by hand, and verify which side you are looking at from the rear of the truck facing forward.
How do I find the number on my old fairing?
Look on the inside face of the panel, usually near a mounting boss or along the upper edge. Numbers are often molded or stamped and can be hidden under road grime, so wipe the area down first. If the panel is destroyed and unreadable, use the VIN to verify the correct fairing for your configuration.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.