Engine air filter replacement typically costs $25–$60 and cabin air filter replacement typically costs $30–$80 at our service center.

These ranges reflect parts and basic labor for a 2018 Ram 3500; final price can vary by filter brand and vehicle condition. Larry H. Miller Chrysler Jeep Dodge Ram Boise provides up-front pricing and will confirm the exact cost before work begins.

• Includes OEM-spec or equivalent filter options.
• Price quote includes inspection of intake housing and MAF sensor.
• Schedule service online to get an exact estimate: schedule appointment.

Replace the engine air filter on a 2018 Ram 3500 every 30,000 miles under normal driving conditions.

Driving in dusty Idaho roads or frequent towing can load the filter faster, so check it more often in Boise, Nampa, Meridian, and Caldwell. Our technicians inspect the intake and filter during routine service to recommend an interval specific to your use.

• Normal driving: ~30,000 miles recommended.
• Heavy dust/towing: inspect every 10,000–15,000 miles.
• We document filter condition at each visit for maintenance records.

Replace the cabin air filter on a 2018 Ram 3500 every 15,000–20,000 miles or annually, whichever comes first.

Pollen seasons and Boise's river-valley dust can reduce cabin filter life; drivers who regularly travel gravel or construction routes may need more frequent replacement. Our service team inspects the HVAC intake and recommends replacement based on visual condition.

• Typical interval: 15,000–20,000 miles or yearly inspection.
• High-pollen or dusty areas: inspect at every oil change.
• Replacement improves HVAC airflow and cabin air quality.

The engine air filter on a 2018 Ram 3500 is located in the engine bay inside the air filter housing connected to the intake tract.

Open the hood and look for the large rectangular or cylindrical housing near the front or side of the engine compartment; it feeds air into the throttle body or turbo intake. The cabin filter for the 2018 Ram 3500 is typically accessed behind the glove box or an interior panel.

• Engine filter: in the engine bay airbox on the intake side.
• Cabin filter: behind the glove box or HVAC access panel.
• Technicians inspect both locations during service to confirm fit and seal.

The engine air filter cleans incoming air for combustion; the cabin air filter cleans air entering the passenger compartment through the HVAC system.

The engine filter protects the engine and maintains performance and fuel economy, while the cabin filter protects occupants from dust, pollen, and odors. Both are important for healthy operation and comfort in Boise's seasonal conditions.

• Engine filter: protects engine components and MAF sensor.
• Cabin filter: improves HVAC airflow and in-cabin air quality.
• Different sizes and media — replace each with the correct part for a 2018 Ram 3500.

Common signs for a 2018 Ram 3500 include reduced engine power, lower fuel economy, and rough idle for the engine filter; for the cabin filter, weak HVAC airflow and musty odors occur.

If you notice sluggish acceleration while towing or decreased MPG, the engine intake may be restricted. If HVAC vents have low flow or you smell mildew, the cabin filter likely needs replacement. Our technicians perform a quick inspection and can replace filters during the same visit.

• Engine: reduced power, rough idle, decreased MPG.
• Cabin: weak HVAC airflow, odors, increased dust inside the cabin.
• Bring your 2018 Ram 3500 in for inspection if you observe these symptoms.

You can often replace the engine air filter yourself in about 15–30 minutes, while cabin filter replacement may take 30–60 minutes depending on access; dealer service adds inspection and OEM-spec parts.

Engine filters are usually DIY-friendly with basic tools, but cabin filters sometimes require glove box or trim removal. Choosing dealer service ensures an OEM-spec filter, intake and MAF visual check, and documented maintenance records for resale or warranty needs.

• DIY: saves labor cost for straightforward engine filter swaps.
• Dealer: includes visual inspection of intake, MAF sensor, and proper disposal.
• Schedule service online for a time that fits your schedule: schedule appointment.

Most air filter services for a 2018 Ram 3500 are completed in about 30 minutes at our service center.

That timeframe covers engine and cabin filter inspection, filter change, intake housing check, and a quick MAF sensor visual. If additional cleaning or repairs are needed we will notify you with an updated time and estimate.

• Typical service duration: ~30 minutes.
• Appointment booking available online: schedule appointment.
• Check current offers before you visit: service specials.

The 2018 Ram 3500 uses a dedicated engine air filter sized for its 5.7L V8 (5654 cc) intake; the cabin filter is sized for the HVAC plenum. OEM parts are engineered to meet airflow and filtration specifications for the vehicle's regular unleaded engine and are matched to the intake geometry of the 2018 Ram 3500.

OEM-recommended intervals are typically 30,000 miles for the engine air filter and 15,000–20,000 miles for the cabin filter under normal conditions; heavy dust, towing, and off-road use can shorten those intervals. Common issues reported by technicians include accelerated clogging from dusty roads and pollen during spring in the Treasure Valley.

Bring your 2018 Ram 3500 to Larry H. Miller Chrysler Jeep Dodge Ram Boise in Boise for OEM-spec filter service — schedule service.

Our air filter replacement for the 2018 Ram 3500 includes inspection and replacement of the engine air filter and the cabin air filter, a visual check of the intake housing and clamps, and a visual inspection of the MAF sensor for contamination. Technicians record filter condition in your service history and advise if additional cleaning or repairs are required.

Services generally include proper disposal of the old filters and installation of OEM-spec or equivalent parts. Parts are covered by the manufacturer's parts warranty—ask your service advisor for exact warranty terms. If you prefer, discuss payment options with our finance team.

Ready to book? Schedule appointment or call our service desk at (208) 555-1212 to speak with a technician.

We serve Boise and nearby communities including Nampa, Meridian, and Caldwell with air filter service tailored to local conditions—river-valley dust, pollen seasons, and frequent towing on Idaho roads. Our factory-certified technicians and master mechanics inspect filters and the intake system to recommend the right maintenance interval for your 2018 Ram 3500.

Visit our Boise service department at 222 S Auto Dr, Boise, ID 83709; use Clicklane to start service online and choose home delivery if available. For current offers, check our service specials, or schedule appointment at a convenient time.

Bring your 2018 Ram 3500 to Larry H. Miller Chrysler Jeep Dodge Ram Boise for a documented, OEM-informed inspection and filter replacement.