Do you have a musty odor in your vehicle? Do you have allergies? Is your vehicle exposed to a large amount of road dust? Try changing your cabin air filter for fresher, cleaner air inside the passenger cabin. Manufacturers recommend every 12 months or 12, 000 miles. In areas with higher pollutants in the air, you may wish to change the cabin filter twice a year. ECOGARD XC11545 COMPATIBLE WITH: Ram 1500 3. 0L DIESEL 2016-2018 Ram 1500 3. 6L 2016-2020 Ram 1500 5. 7L 2016-2020 Ram 1500 Classic 3. 0L DIESEL 2019-2019 Ram 1500 Classic 3. 6L 2019-2019 Ram 1500 Classic 5. 7L 2019-2019 Ram 2500 5. 7L 2016-2018 Ram 2500 6. 4L 2016-2019 Ram 2500 6. 7L DIESEL 2016-2019 Ram 3500 5. 7L 2016-2018 Ram 3500 6. 4L 2016-2019 Ram 3500 6. 7L DIESEL 2016-2019 Ram 4500 6. 4L 2016-2018 Ram 4500 6. 7L DIESEL 2016-2018 Ram 5500 6. 4L 2016-2018 Ram 5500 6. 7L DIESEL 2016-2018