How often should I clean this filter?

K&N recommends inspecting your filter every 12 months or 12,000 miles and cleaning as needed. Your driving environment will affect the cleaning intervals, so check it more often in dusty conditions.

What does the K&N cabin air filter warranty cover?

K&N warrants their cabin air filters to be free from defects in material and workmanship for 10 years or 1,000,000 miles. This warranty applies when the filter is used and maintained as intended.

Do I need to oil this filter after cleaning?

No, this cabin air filter does not require oiling after cleaning. Oiling is only required for K&N's engine air filters, not their cabin air filters.

K&N 20-21 Freightliner Sprinter 3500 2.1L L4 Diesel Cabin Air Filter

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K&N Engineering

K&N 20-21 Freightliner Sprinter 3500 2.1L L4 Diesel Cabin Air Filter

Name: K&N 20-21 Freightliner Sprinter 3500 2.1L L4 Diesel Cabin Air Filter
Brand: K&N Engineering
Price: 62.99 USD
Availability: InStock

$62.99

Clean and freshen the air in your cab. This K&N cabin filter is washable and reusable, saving you money over disposable filters.

Key Features

Washable and reusable — save money and reduce waste.
Electrostatically charged media — captures dust and allergens.
Direct replacement for stock cabin filter — fits right.
10 year / Million Mile limited warranty — well-made.

Fits 2020-2021 Freightliner Sprinter 3500 2.1L L4 Diesel.

⚠ California Prop 65 Warning

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Since 1957

Family-owned

Product Details

This robust, reusable heavy duty cabin air filter help capture most mold, mildew, fungus, spores, bacteria, and germs controlling odors and contaminants inside the cabin during those long hauls.