What You're Getting
This is the full front bumper assembly for Freightliner Cascadia trucks built 2018 through 2024, steel construction with chrome finish. The -036 and -037 numbers cover the same bumper in slightly different configurations - typically tied to whether the truck has fog lamp cutouts or a different center brow setup.
Cascadia went through some styling tweaks over that model run, so 'fits 2018-2024' doesn't mean every bumper is interchangeable across every year. The mounting points and overall shape stayed close, but details like fog light openings, tow hook cutouts, and the air dam attachment can differ.
Bottom line: pull the number off your old bumper or check your VIN before you order. That's the only way to know for sure which version your truck actually needs.
How the Cross Numbers Line Up
The alternate numbers we list - S28724, A21-29311-010, A21-29370-002 - are Freightliner's own numbers from parts catalogs and supersession updates. Freightliner has revised part numbers over the years as they changed suppliers or made small production tweaks, so you'll see a bumper that's physically the same part carrying two or three different numbers depending on when it left the factory.
What actually matters on a bumper like this: overall width, the bolt pattern for the frame mounts, and whether the cutouts (fog lights, tow hooks, sensor holes if equipped) line up with what's already on your truck. A number can cross over on paper and still be wrong if your truck has a different front-end package than the donor unit did.
Don't just match the headline number and call it done. Compare the physical part or at minimum confirm through your VIN that the mounting configuration matches.
Ordering From Us
We're in Tacoma and keep common Cascadia bumpers in stock for same-day pickup or local delivery. If your rig is down and you need it today, call ahead and we'll have it staged.
Ship nationwide too - bumpers like this go out freight or oversized parcel depending on your location, so figure a day or two extra transit versus small parts.
Steel bumpers like this are heavy and not cheap to send back, so we'd rather get it right the first time. Have your VIN or the old part number ready when you call - it saves everybody a return shipment.
A2128979036 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to A2128979036. 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 | S28724, A21-29311-010, A21-29370-002 |
Frequently asked questions
Does A21-28979-036 fit my 2020 Cascadia?
Probably, but confirm with your VIN or the number stamped/labeled on your current bumper first. The -036 and -037 versions differ in cutout configuration, and Freightliner made changes within the 2018-2024 run, so don't assume by year alone.
Is this the same as the S28724 Freightliner lists?
It's the same bumper under a different catalog number - S28724 shows up as one of Freightliner's own cross-references for this part. Numbers get reassigned over time due to supplier changes, but check your fog light and tow hook cutouts match before you commit.
What's the difference between the -036 and -037 versions?
Typically it comes down to cutouts - fog lamp openings, sensor provisions, or minor trim differences. Match the number off your old bumper if it's still readable, or check the build sheet/VIN to be sure which one your truck left the factory with.
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.