Ram 2500 · Elgin CDJR · Streamwood, IL
Ram 2500 Air Filter Guide
How often should the air filter on a Ram 2500 be changed? Here is what the 2026 Ram 2500/3500 owner's manual says about the engine air cleaner filter for the 6.4L gasoline and 6.7L diesel engines, the steps to replace it, and how to change the cabin air filter behind the glove compartment.

The short answer
For the 6.4L gasoline engine, the 2026 Ram 2500/3500 Maintenance Plan lists replacing the engine air cleaner filter every 30,000 miles (48,000 km) or 3 years. For the 6.7L diesel, it lists inspecting the filter every 15,000 miles (24,000 km) or 12 months and replacing it if necessary, and says it should never exceed 30,000 miles (48,000 km) or 24 months. The cabin air filter is replaced every 12,000 miles (19,000 km) on both.
How often to change the Ram 2500 air filter
The manual's Maintenance Plans list:
| Filter | Interval, per the 2026 manual |
|---|---|
| Engine air cleaner filter, 6.4L gasoline | Replace every 30,000 miles (48,000 km) or 3 years |
| Engine air cleaner filter, 6.7L diesel | Inspect every 15,000 miles (24,000 km) or 12 months, replace if necessary; never exceed 30,000 miles (48,000 km) or 24 months |
| Cabin air filter, both engines | Replace every 12,000 miles (19,000 km) |
| Dusty or off-road driving | Inspect the engine air cleaner filter at each oil change; replace if required |
At each oil change, the manual also says to inspect the engine air cleaner filter if you drive in dusty or off-road conditions, and replace it if required. It says the quality of replacement filters varies considerably, and recommends Mopar engine air cleaners as high quality filters.
From the 2026 Ram 2500/3500 owner's manual (Maintenance Plan, 6.4L Gasoline Engine; Maintenance Plan, 6.7L Diesel Engine; At Each Oil Change; Engine Air Cleaner Filter Selection), read November 8, 2026.
How to replace the 6.4L gasoline engine air filter
When replacing the engine air cleaner filter on a 6.4L gasoline engine, the manual says to use a dry (non-oiled) filter only. Its removal and installation steps are:
- With a suitable tool, loosen the fasteners on the engine air cleaner filter cover.
- Lift the engine air cleaner filter cover to access the filter.
- Remove the engine air cleaner filter from the housing assembly.
- Inspect and clean the housing if significant dirt or debris is present, then install the new filter into the housing assembly with the filter inspection surface facing downward.
- Install the engine air cleaner filter cover onto the housing assembly.
- Tighten the fasteners on the engine air cleaner filter assembly. Do not overtighten the cover lid screws or damage may result.
From the 2026 Ram 2500/3500 owner's manual (Engine Air Cleaner Filter Inspection And Replacement, Gasoline Engine), read November 8, 2026.
How to replace the 6.7L diesel engine air filter
The manual's steps for the diesel engine are:
- Using a suitable tool, fully loosen the fasteners on the engine air cleaner filter cover.
- Lift the cover to access the engine air cleaner filter.
- Remove the filter from the housing assembly.
- Inspect and clean the lower housing if significant dirt or debris is present, then install the new filter with the pleats (the area that was inspected) facing downward.
- Install the filter cover onto the housing assembly locating tabs.
- Tighten the fasteners to secure the cover to the housing assembly.
From the 2026 Ram 2500/3500 owner's manual (Engine Air Cleaner Filter Inspection And Replacement, Diesel Engine), read November 8, 2026. The manual warns that the air induction system can provide a measure of protection in the case of engine backfire: do not remove it unless necessary for repair or maintenance, and make sure no one is near the engine compartment before starting the vehicle with it removed.
How to replace the Ram 2500 cabin air filter
The cabin air filter is in the fresh air inlet behind the glove compartment and is replaced every 12,000 miles (19,000 km). Do not remove it while the vehicle is running, or with the ignition in ACC or ON/RUN, because the blower can contact hands and propel debris. The manual's steps are:
- Open the glove compartment and remove all contents.
- With the door open, remove the glove compartment tension tether and tether clip by sliding the clip toward the face of the door, then lift the clip out of the door and release it into the dash panel.
- Push inward on the right side glove compartment travel stop to disengage it, then pull the right side of the compartment outward (away from the hinge) to disengage it from the hinge.
- Disengage the door from its hinges by opening the glove compartment past the travel stop and pulling it toward you.
- Remove the filter cover by pushing in on the finger tabs on each end.
- Pull the cabin air filter straight out of the housing.
- Install the new filter with the arrow pointing toward the floor. When installing the cover, press on each end until you hear an audible click.
- Reinstall the glove compartment on the hinges.
- Pull the tension tether outward and reinstall the glove compartment past the travel stops by pushing in on its sides.
- Reattach the tension tether by inserting the tether clip in the door and sliding it away from the face of the door.
From the 2026 Ram 2500/3500 owner's manual (Cabin Air Filter Replacement; Maintenance Plans), read November 8, 2026. The filter's arrow shows the airflow direction; the manual says installing it wrong will mean replacing it more often. Make sure the door hinges and travel stops are fully engaged.
Ram 2500 service at Elgin CDJR
If your Ram 2500 is due for an engine or cabin air filter, our Ram service center can replace it. Our service department is open Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m., and is closed Sunday. Elgin CDJR is at 1500 W. Lake St. in Streamwood. Get directions.
Ram 2500 Air Filter FAQ
How often should I change the air filter on a Ram 2500 6.4L?
The 2026 gasoline Maintenance Plan lists replacing the engine air cleaner filter every 30,000 miles (48,000 km) or 3 years.
How often should I change the Ram 2500 Cummins air filter?
The diesel plan says to inspect it every 15,000 miles (24,000 km) or 12 months and replace it if necessary, and never to exceed 30,000 miles (48,000 km) or 24 months.
Can I use an oiled air filter on a Ram 2500 6.4L?
No. The manual says to replace the 6.4L gasoline engine air cleaner filter with a dry (non-oiled) filter only.
Where is the Ram 2500 cabin air filter?
In the fresh air inlet behind the glove compartment. The manual says to replace it every 12,000 miles (19,000 km).
Which way does the Ram 2500 cabin air filter go in?
Install it with the arrow on the filter pointing toward the floor.
What are your service hours?
Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m. We are closed Sunday.
Bring your Ram 2500 to Streamwood
Visit Elgin CDJR at 1500 W. Lake St. in Streamwood.
Sources
The guidance on this page is from the 2026 Ram 2500/3500 owner's manual on Mopar (PDF dated August 20, 2026), read November 8, 2026. Our address and service hours are from our own website, checked the same day.