Help reduce allergens and keep the air clean inside your 2017-2019 Chevy/GMC 6.6L L5P Duramax with a new Cabin Air Filter. Cabin Filters install inside the vehicle HVAC ducting and help remove pollen, dirt, dust, and outside contaminants before it is circulated through the passenger compartment. Shop now at XDP and ensure your HVAC system is properly operating with a new cabin filter! Normally equipped on most newer vehicles, these filters require regular replacement to avoid debris buildup or excessive restriction in the HVAC system. In most cases the cabin air filter is easily accessed inside the vehicle interior or under the hood.