General Information

The cab HVAC assembly has either two pleated, dust/odor air filters that are not cleanable and must be replaced every three months, or two foam air filters with aluminum screens that can be cleaned every three months and replaced once a year.

Additionally, some vehicles are equipped with an HVAC pre-filter that should be cleaned every three months and replaced once a year.

On sleeper cabs, the sleeper HVAC assembly has either two pleated, dust/odor air filters that are not cleanable and must be replaced every three months, or two foam air filters with aluminum screens that can be cleaned every three months and replaced once a year.