2020 Ram 3500 Air & Cabin Filters
The 2020 Ram 3500 uses OEM cabin air filter 68535623AA and engine air filter 53034051AB.
Key takeaways
- Cabin air filter: 68535623AA. Engine air filter: 53034051AB.
- FRAM, Bosch, and K&N list cross-references that fit the same.
- Replace the engine filter about every 30,000 miles and the cabin filter every 18,000.
- A cabin filter is a $10-45 part - shops charge $35-100 for a job that is often ten minutes.
Genuine OEM part numbers. Aftermarket brands cross-reference to these and fit the same.
Filters for the 2020 Ram 3500
Both filters are quick DIY swaps. Match the OEM number above, or buy a quality aftermarket equivalent that lists it as a cross-reference.
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What it should cost you
| The part itself | $10-45 |
| Shop or dealer, all-in | $35-100 |
| Labour (what DIY saves) | $20-90 |
A cabin air filter for the 2020 Ram 3500 is a $10-45 part. A shop or dealer will typically charge $35-100 all-in, because $20-90 of that is labour on a job that is often ten minutes with no tools. This is the single most marked-up item on a standard service invoice, and it is the easiest one to take back.
The cabin filter this car takes (68535623AA) is not exclusive to it - the same part is fitted to 2 other models in our data. That is good news for you: a part used across that many vehicles is stocked everywhere, has real aftermarket competition, and is priced accordingly. There is no reason to pay a dealer premium for it.
The part numbers
These are the OEM numbers for the 2020 Ram 3500. They are the safest thing to search on: aftermarket brands each use their own numbering, but every one of them lists the OEM number it replaces, so searching the OEM part gets you the exact-fit options across every brand at once.
| Filter | OEM part | What it does |
|---|---|---|
| Cabin air filter | 68535623AA | Cleans the air you breathe |
| Engine air filter | 53034051AB | Cleans the air the engine burns |
The cabin part 68535623AA is also fitted to 2 other models we hold specs for.
Cabin filter or engine air filter?
The engine air filter (53034051AB) is a different part doing a different job, and the two get confused constantly. The cabin filter cleans the air you breathe; the engine air filter cleans the air the engine burns. Mixing them up when ordering is the most common mistake here, and they are not interchangeable. The engine filter usually sits in a black plastic airbox under the hood held down by clips, which makes it another job that is easier than its invoice line suggests.
Is it a DIY job?
On a lot of vehicles the cabin filter sits behind the glovebox: drop the box down, slide the old filter out, slide the new one in the same way up. Five to ten minutes, no tools. On others it lives behind a trim panel or under the dash and genuinely is a job. We do not hold a verified location for the Ram 3500, so check yours before you assume - but it is worth the two minutes of looking, because if it is the glovebox type you are paying a shop mostly to open your glovebox.
One thing that catches people: cabin filters have an airflow arrow on the frame, and it has to point the way the old one did (usually down, toward the floor). Fit it upside down and it still works, just badly, and you will not know why. How to change it
When to change it
Plan on the cabin filter roughly every 18,000 miles, or about 12,000 if you drive in heavy traffic, dust, or pollen, and the engine air filter around every 30,000 miles, or 20,000 in dusty conditions. Neither is a hard deadline - filters fail gradually rather than suddenly. The honest test is to look at it: hold it up to a light, and if you cannot see light through it, it is done. A filter that still passes light is still working, whatever the service reminder says.
Signs yours is done
The signs are easy to miss because they arrive slowly. Weak airflow from the vents even with the fan on high, a musty smell when the air first comes on, or windows that fog up and take longer to clear than they used to. If your fan sounds like it is working hard but not much is coming out, that is the filter, not the blower.
Cost figures from RepairPal and VehicleRuns, July 2026. Part prices vary by brand, filter type, and region.
Frequently asked
What cabin air filter does a 2020 Ram 3500 use?
The OEM cabin air filter is 68535623AA. Aftermarket brands like FRAM, Bosch and K&N list it as a cross-reference and fit the same.
What engine air filter does a 2020 Ram 3500 use?
The OEM engine air filter is 53034051AB. Any quality filter that cross-references this number will fit.
How often should I change the filters on a 2020 Ram 3500?
Plan on the cabin filter roughly every 18,000 miles, or about 12,000 if you drive in heavy traffic, dust, or pollen, and the engine air filter around every 30,000 miles, or 20,000 in dusty conditions. Neither is a hard deadline - filters fail gradually rather than suddenly. The honest test is to look at it: hold it up to a light, and if you cannot see light through it, it is done. A filter that still passes light is still working, whatever the service reminder says.
How much should a cabin air filter cost for a 2020 Ram 3500?
A cabin air filter for the 2020 Ram 3500 is a $10-45 part. A shop or dealer will typically charge $35-100 all-in, because $20-90 of that is labour on a job that is often ten minutes with no tools. This is the single most marked-up item on a standard service invoice, and it is the easiest one to take back.
Can I change the cabin air filter on a 2020 Ram 3500 myself?
On a lot of vehicles the cabin filter sits behind the glovebox: drop the box down, slide the old filter out, slide the new one in the same way up. Five to ten minutes, no tools. On others it lives behind a trim panel or under the dash and genuinely is a job. We do not hold a verified location for the Ram 3500, so check yours before you assume - but it is worth the two minutes of looking, because if it is the glovebox type you are paying a shop mostly to open your glovebox.
What is the difference between the cabin filter and the engine air filter?
The engine air filter (53034051AB) is a different part doing a different job, and the two get confused constantly. The cabin filter cleans the air you breathe; the engine air filter cleans the air the engine burns. Mixing them up when ordering is the most common mistake here, and they are not interchangeable. The engine filter usually sits in a black plastic airbox under the hood held down by clips, which makes it another job that is easier than its invoice line suggests.
Does the Ram 3500 cabin filter fit other cars?
The cabin filter this car takes (68535623AA) is not exclusive to it - the same part is fitted to 2 other models in our data. That is good news for you: a part used across that many vehicles is stocked everywhere, has real aftermarket competition, and is priced accordingly. There is no reason to pay a dealer premium for it.
How do I know if the cabin filter needs changing?
The signs are easy to miss because they arrive slowly. Weak airflow from the vents even with the fan on high, a musty smell when the air first comes on, or windows that fog up and take longer to clear than they used to. If your fan sounds like it is working hard but not much is coming out, that is the filter, not the blower.