What You're Actually Buying
This is the desiccant cartridge that threads into the Bendix AD-9 or AD-9si air dryer housing - it's the filter element doing the actual work of pulling moisture and oil out of the compressed air before it hits your brake system and valves. When trucks start blowing wet air out the purge port every cycle, or the desiccant's turned to mud, this is the part you're replacing, not the whole housing.
On the Freightliner Cascadia this cross-references clean because Freightliner ran Bendix air systems as standard equipment through most of the Cascadia's run, 2000 up through current builds. Volvo trucks with Bendix-brand air dryers (not the Volvo/Wabco setups) use the same cartridge. Universal fit claims on this part mean it's not truck-specific - it's dryer-housing specific.
Bore size and thread pitch on the housing neck are what actually matter here, not the make of truck. If the old cartridge threaded in and sealed, this one will too - assuming it's the same generation AD-9 housing.
Reading the Cross-Reference Numbers
109493 and 109493X are the same base Bendix part - the X suffix Bendix added at some point in their numbering, doesn't change the cartridge internally. 65624 and 065624 are Bendix's older superseded numbers for this same cartridge before they renumbered their air dryer line; 065624BXW is a version with the BXW bracket-mount packaging, same cartridge inside.
H109493X and 109493X-BW show up on some supplier catalogs as private-labeled or repackaged versions - manufacturers slap their own prefix or suffix on a part they're reselling, but the cartridge underneath crosses back to Bendix's design. R955109493X is the aftermarket equivalent, made to the same fit spec.
None of these numbers guarantee your housing takes this cartridge blind. AD-9 and AD-9si dryers can have different cartridge depths and thread engagement across production years - always pull the number stamped on your old cartridge or check your Bendix housing tag before ordering.
Ordering From PartStop
We're in Tacoma and keep this one in stock for the local fleets running Cascadias and Volvos through here daily - if you're close, same-day pickup or install before end of shift. Ship it anywhere in the country if you're not local, and it goes out fast because dryer cartridges don't wait for a slow shipping day when your truck's derated for low air pressure.
This is a 6+ month warranty part. If it doesn't seat right or fails early, bring it back with your invoice and we'll sort it - but confirm your VIN or the old cartridge's stamped number with us before you buy so we're not guessing on a housing generation.
109493X Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 109493X. 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 |
|---|---|
| Cross-Reference | 109493, 65624, 065624, 065624BXW, 109493X-BW, H109493X |
| Aftermarket | R955109493X |
Frequently asked questions
Does 109493X fit my 2015 Cascadia?
Most likely, if your truck runs the Bendix AD-9 or AD-9si air dryer stock - which Cascadias in that year range typically did. Pull the old cartridge and check the number stamped on it, or give us the VIN and we'll verify against the Bendix housing spec before you order.
Is 109493X the same as 65624?
Yes - 65624 is Bendix's older part number for this exact cartridge before they updated their numbering system to 109493X. Same cartridge, same fit, just an older catalog number that still shows up on some trucks' old paperwork.
My truck has a Wabco air dryer, will this work?
No - this is a Bendix-specific cartridge for AD-9/AD-9si housings. Wabco systems use a different cartridge design and thread pattern entirely. Check your housing tag or bring the old part in so we can match it correctly.
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.