HS 8421-31 – Intake air filters for internal combustion engines

Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026

Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. – Intake air filters for internal combustion engines.

10-digit tariff items

• 8421-31-00-10 – Air filters for use with the goods of tariff item No. 9908.00.00; Air cleaners for use in the manufacture of asphalt pavers (MFN Free)
• 8421-31-00-20 – Air filters, for motor vehicles of Chapter 87 (MFN Free)
• 8421-31-00-90 – Other (MFN Free)

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