Subheading · Chapter 84 · Heading 8421
8421.31: Intake air filters for internal combustion engines
Engine intake air filters
8421.31 is the HS subheading for engine intake air filters, under heading 8421 in chapter 84.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 8421 31 00 00 Intake air filters for internal combustion engines
- 8421 31 00 10 For use in civil aircraft Free
- 8421 31 00 90 Other Free
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 3
- Additional dutyAdditional duties 35%
- Applies to goods from
- Belarus, Russia
- Legal act
- 2022 No. 376
- Documents
- 9008
- Duty suspensionAirworthiness tariff suspension Free
- Applies to goods from
- all countries
- Legal act
- S.I. 2018/1249
- Documents
- C119 Authorised Release Certificate — EASA Form 1 (Appendix I to Annex I to Regulation (EU) No 748/2012), or equivalent certificate
- Duty suspensionSuspension - goods for certain categories of ships, boats and other vessels and for drilling or production platforms Free
- Applies to goods from
- all countries
- Legal act
- 2020 No. 1431
- Documents
- C990 End use authorisation ships and platforms (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
- Tariff lines
- on 1 of 2 lines
Import requirements 2
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Russia, Ukraine
- Legal act
- 2023 No. 440, S.I. 2022/395
- Documents
- 9011
- 9022
- 9038
- 9009
- 9010
- 9017
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | Free |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code " EU") | Free | |
| DCTS Enhanced | Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 moreAlgeria, Bolivia, Cape Verde, Congo - Brazzaville, Cook Islands, Kyrgyzstan, Micronesia, Mongolia, Nigeria, Niue, Pakistan, Philippines, Sri Lanka, Syria, Tajikistan, Uzbekistan, Vanuatu | Free |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| Central America | Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| CPTPP | Brunei, Malaysia | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Chile agreement | Chile | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| DCTS Standard | Indonesia | Free |
| UK–Israel agreement | Israel | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Lebanon agreement | Lebanon | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Mexico agreement | Mexico | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Tunisia agreement | Tunisia | Free |
| UK–Türkiye agreement | Türkiye | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
| £19.5m | 17.7% | -1.1% | |
| £19.3m | 17.5% | -1.1% | |
| £10.1m | 9.2% | +11.9% | |
| £8.4m | 7.6% | -2.3% | |
| £7.7m | 7% | -20.4% | |
| £6.1m | 5.6% | +0.7% | |
| £4m | 3.6% | +1.3% | |
| £3.3m | 3% | +49.4% |
Same subheading in other tariffs
World trade in 2024
Trade value (US$) no reported trade < US$56kUS$56k+US$3m+US$43m+> US$221m
Exports: 202
- China: US$826m
- United States: US$686m
- Germany: US$652m
- Mexico: US$393m
- Poland: US$253m
- Czechia: US$221m
- Belgium: US$154m
- Türkiye: US$149m
- France: US$139m
- United Kingdom: US$137m
- Japan: US$123m
- Italy: US$108m
- South Korea: US$96m
- Spain: US$74m
- Romania: US$68m
- India: US$67m
- Netherlands: US$57m
- Thailand: US$56m
- Tunisia: US$45m
- Indonesia: US$43m
- South Africa: US$38m
- Austria: US$37m
- Hungary: US$32m
- Slovenia: US$31m
- Canada: US$31m
- Malaysia: US$28m
- Sweden: US$23m
- Taiwan: US$21m
- Slovakia: US$20m
- Singapore: US$20m
- Vietnam: US$19m
- Brazil: US$17m
- Bosnia & Herzegovina: US$17m
- Lithuania: US$16m
- Bulgaria: US$16m
- United Arab Emirates: US$13m
- Finland: US$10m
- Kazakhstan: US$10m
- Philippines: US$10m
- Australia: US$10m
- Morocco: US$9m
- Denmark: US$8m
- Portugal: US$7m
- Saudi Arabia: US$4m
- Latvia: US$4m
- Switzerland: US$4m
- Russia: US$3m
- Israel: US$3m
- Cyprus: US$3m
- Croatia: US$3m
- Greece: US$3m
- Estonia: US$2m
- Argentina: US$2m
- Uzbekistan: US$2m
- Ukraine: US$2m
- Colombia: US$2m
- Jordan: US$2m
- Ireland: US$2m
- Norway: US$2m
- Bahrain: US$2m
Trade value (US$) no reported trade < US$3mUS$3m+US$16m+US$59m+> US$142m
Imports: 219
- United States: US$649m
- Germany: US$331m
- Canada: US$278m
- Belgium: US$241m
- Mexico: US$190m
- France: US$183m
- Poland: US$142m
- United Kingdom: US$138m
- Australia: US$127m
- Italy: US$120m
- Türkiye: US$112m
- Russia: US$103m
- Netherlands: US$99m
- Spain: US$88m
- Brazil: US$76m
- South Africa: US$74m
- Chile: US$71m
- Indonesia: US$68m
- United Arab Emirates: US$67m
- Czechia: US$65m
- Saudi Arabia: US$61m
- Romania: US$59m
- Singapore: US$59m
- Malaysia: US$55m
- China: US$55m
- Hungary: US$52m
- Japan: US$49m
- Slovakia: US$47m
- Kazakhstan: US$47m
- South Korea: US$45m
- Sweden: US$43m
- India: US$39m
- Ukraine: US$38m
- Peru: US$37m
- Portugal: US$35m
- Colombia: US$33m
- Thailand: US$32m
- Austria: US$31m
- Switzerland: US$28m
- Kyrgyzstan: US$24m
- Bulgaria: US$22m
- Lithuania: US$21m
- Argentina: US$20m
- Taiwan: US$20m
- Côte d’Ivoire: US$18m
- Serbia: US$18m
- Croatia: US$18m
- Israel: US$18m
- Denmark: US$17m
- Ireland: US$17m
- Egypt: US$17m
- Finland: US$17m
- Greece: US$16m
- Philippines: US$16m
- Kuwait: US$16m
- Iraq: US$15m
- Vietnam: US$15m
- Morocco: US$15m
- New Zealand: US$15m
- Ecuador: US$15m
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | US$826m | 17% | |
| 2 | US$686m | 14.2% | |
| 3 | US$652m | 13.4% | |
| 4 | US$393m | 8.1% | |
| 5 | US$253m | 5.2% | |
| 6 | US$221m | 4.6% | |
| 7 | US$154m | 3.2% | |
| 8 | US$149m | 3.1% | |
| 9 | US$139m | 2.9% | |
| 10 | US$137m | 2.8% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | US$649m | 13.4% | |
| 2 | US$331m | 6.8% | |
| 3 | US$278m | 5.7% | |
| 4 | US$241m | 5% | |
| 5 | US$190m | 3.9% | |
| 6 | US$183m | 3.8% | |
| 7 | US$142m | 2.9% | |
| 8 | US$138m | 2.8% | |
| 9 | US$127m | 2.6% | |
| 10 | US$120m | 2.5% |
Import duty on this product around the world 165
The most-favoured-nation (MFN) duty each country applies to goods of this HS subheading: the average over its national tariff lines, with the lowest and highest line where they differ. Goods from countries with a trade agreement often pay less.
- 5%median duty
- 28number of duty-free countries (MFN)
- 45%highest: Bahamas, Morocco, Bermuda
165
| Importing country | MFN duty | lines from – to | data year |
|---|---|---|---|
| 5% | 2018 · HS 2012 | ||
| 0% | 2023 | ||
| 30% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 15% | 2021 · HS 2017 | ||
| 30% | 2021 · HS 2007 | ||
| 16% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 12% | 2021 · HS 2012 | ||
| 5% | 2023 | ||
| 7.5% | 0% – 15% | 2023 · HS 2017 | |
| 45% | 2022 | ||
| 5% | 2023 | ||
| 25% | 2023 · HS 2017 | ||
| 30% | 2022 · HS 2017 | ||
| 0% | 2021 · HS 2017 | ||
| 30% | 2023 | ||
| 5% | 2023 | ||
| 35% | 2023 | ||
| 10% | 2022 | ||
| 5% | 2023 · HS 2017 | ||
| 5% | 0% – 10% | 2022 | |
| 3.8% | 0% – 15% | 2023 | |
| 16% | 2023 · HS 2017 | ||
| 0% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 25% | 2023 | ||
| 15% | 2023 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 5% | 0% – 10% | 2023 · HS 2017 | |
| 22% | 2021 · HS 2002 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 6% | 2023 · HS 2017 | ||
| 10% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 20% | 2021 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2022 · HS 2017 | ||
| 9% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 10% | 2023 · HS 2017 | ||
| 30% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 20% | 2019 · HS 2017 | ||
| 10% | 2022 | ||
| 10% | 2023 | ||
| 3.8% | 0% – 15% | 2023 | |
| 13% | 5% – 20% | 2021 · HS 2017 | |
| 1.7% | 2023 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2022 · HS 2017 | ||
| 5% | 2023 | ||
| 12% | 2023 · HS 2017 | ||
| 25% | 2023 · HS 2012 | ||
| 10% | 2023 | ||
| 5% | 2023 | ||
| 5% | 2023 | ||
| 30% | 2023 · HS 2017 | ||
| 10% | 2020 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 3.3% | 0% – 5% | 2023 | |
| 20% | 2020 · HS 2017 | ||
| 12% | 2022 · HS 2017 | ||
| 25% | 2023 | ||
| 0% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2023 | ||
| 25% | 2023 | ||
| 0% | 2023 · HS 2002 | ||
| 5% | 2023 | ||
| 0% | 2021 · HS 2017 | ||
| 5% | 2023 · HS 2017 | ||
| 5% | 2020 · HS 2017 | ||
| 3.8% | 0% – 15% | 2023 | |
| 5% | 2023 | ||
| 5% | 2021 · HS 2017 | ||
| 2%* | 2021 · HS 2017 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2021 · HS 2017 | ||
| 25% | 2023 | ||
| 23% | 0% – 50% | 2023 | |
| 5% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 1.7% | 0% – 5% | 2023 · HS 2017 | |
| 4% | 2021 · HS 2017 | ||
| 10% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 15% | 2023 · HS 2017 | ||
| 40% | 2023 | ||
| 5% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 3.8% | 0% – 15% | 2023 | |
| 10% | 2021 · HS 2017 | ||
| 15% | 2023 | ||
| 5% | 2023 | ||
| 10% | 2023 | ||
| 5% | 2023 | ||
| 5% | 2023 | ||
| 15% | 2023 | ||
| 0% | 2023 | ||
| 5% | 2023 | ||
| 35% | 2023 | ||
| 3% | 2023 · HS 2012 | ||
| 12% | 2017 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 0% | 2023 · HS 2017 | ||
| 10% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2021 · HS 2017 | ||
| 25% | 2023 | ||
| 8% | 2020 · HS 2017 | ||
| 10% | 2019 · HS 2017 | ||
| 15% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 10% | 2023 · HS 2017 | ||
| 25% | 2023 · HS 2017 | ||
| 3.8% | 0% – 15% | 2023 | |
| 8% | 2023 | ||
| 20% | 2023 | ||
| 25% | 2023 | ||
| 30% | 2023 · HS 2012 | ||
| 5% | 2021 · HS 2017 | ||
| 25% | 2023 | ||
| 10% | 2021 · HS 2017 | ||
| 25% | 2023 · HS 2007 | ||
| 1.5%* | 2023 | ||
| 7.5% | 5% – 10% | 2020 · HS 2012 | |
| 5% | 2021 · HS 2012 | ||
| 25% | 2023 | ||
| 8.3% | 5% – 10% | 2023 | |
| 5% | 2023 | ||
| 18% | 15% – 20% | 2023 · HS 2017 | |
| 30% | 2023 · HS 2012 | ||
| 5.8% | 0% – 12% | 2023 | |
| 0% | 2017 · HS 2017 | ||
| 25% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 0% | 2023 | ||
| 2.5% | 2023 | ||
| 16% | 2023 · HS 2017 | ||
| 5% | 2021 · HS 2017 | ||
| 5% | 2023 | ||
| 16% | 2023 · HS 2017 | ||
| 3.3% | 0% – 10% | 2023 | |
| 10% | 2021 · HS 2012 | ||
| 5% | 2017 · HS 2017 | ||
| 15% | 2023 | ||
| 0.2% | 2023 |
Tariff data years 2017–2023; rates may have changed since. * ad valorem equivalent of specific duties (UNCTAD estimate) · UNCTAD TRAINS, accessed via WITS (World Bank)
Classifications and correspondences
Where this HS subheading sits in the United Nations' statistical classifications, and which codes it had in earlier editions of the Harmonized System.
- SITC Rev. 4
- 74364 Intake air filters for internal combustion engines
- End use (BEC Rev. 5)
- Capital goods · BEC 512010
- CPC 2.1 product
- 43915 Oil filters, petrol filters and air intake filters for internal combustion engines
- ISIC Rev. 4 activity
- 2819 Manufacture of other general-purpose machinery
Earlier HS editions
| HS | Code | |
|---|---|---|
| 2017 | 8421.31 | changed |
| 2012 | 8421.31 | changed |
| 2007 | 8421.31 | changed |
| 2002 | 8421.31 | changed |
| 1996 | 8421.31 | changed |
| 1992 | 8421.31 | changed |
Correspondence tables of the United Nations Statistics Division (UNSD)
Binding rulings for similar goods 1
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- 600015053 HMRC
An Engine Intake Air Filter designed to clean air intake and provide optimum protection for the engine. The filter media is primarily pleated paper based or synthetic non-woven media. Primarily consists of a polyurethane outer seal with the filter media below. Occasionally can have either metal…
Recent rule changes mentioning this code
Acts whose text cites this code or its heading. Check the act itself: a code can be cited for reasons other than a change of its duty.
-
FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov
-
FR Doc. 2026-11158 · 91 FR 33854 · Source: federalregister.gov
In the UK Global Tariff, subheading 8421.31 covers 2 tariff lines and the duty is duty-free.
The EU Combined Nomenclature has one tariff line for subheading 8421.31; the duty is 1.7%.
Goods from 174 countries can enter the UK at a preferential rate instead of the standard Free; 174 of them pay no duty at all, for example under DCTS Comprehensive or European Union.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
In the 12 months to August 2026, the UK imported engine intake air filters worth £110.2m (up 0% on the year before), at an average of £11.68 per kg; China supplied 18%, followed by Germany.
World trade in engine intake air filters reached US$5bn in 2024, up 3.4% on 2023.
China was the largest exporter with 17% of the total, ahead of the United States.
Products classified here
Questions and answers
What is the HS code for intake air filters for internal combustion engines?
Intake air filters for internal combustion engines fall under HS subheading 8421.31, part of heading 8421, in section XVI of the Harmonized System.
What is the import duty on intake air filters for internal combustion engines in the UK?
Under the UK Global Tariff, imports under 8421.31 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on intake air filters for internal combustion engines in the EU?
Under the EU Combined Nomenclature, imports under 8421.31 from countries without a preferential agreement are charged at 1.7%. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most intake air filters for internal combustion engines?
China, with US$826m in 2024 (17% of world exports).
Which countries can export engine intake air filters to the UK duty-free?
174 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free applies. Pick a country above to see its rate.
Is there anti-dumping duty on engine intake air filters?
The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.
Where does the UK import engine intake air filters from?
In the 12 months to August 2026, the largest suppliers were China (18%), Germany (18%) and United States (9%), out of total imports of £110.2m.
Typical products
- absorption towers
- cyclones
- dust extractors
- electrostatic filters for air or other gases
- filter presses, for gases
- gas scrubbers
- intake air filters
- smoke filters
Everyday names, not part of the legal text.