HS code · 6-digit subheading
HS Code 8421.23 – Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines
HS code 8421.23 is the 6-digit subheading for machinery, filtering or purifying machinery, oil or petrol filters for internal combustion engines. It is used for spin-on oil filters, cartridge oil filters, gasoline filters, diesel fuel filters and inline fuel filters.
What HS 8421.23 covers
This HS code encompasses machinery designed for filtering or purifying oil or petrol specifically for internal combustion engines. This includes a vast array of filters crucial for the automotive, marine, and heavy equipment sectors. These components are vital for protecting engines from contaminants, ensuring optimal performance, extending engine life, and maintaining fuel efficiency. Key players in this trade include major automotive parts manufacturers, aftermarket suppliers, and vehicle assembly plants. Importers are typically auto parts distributors, repair shops, and vehicle manufacturers globally, while exporters are often countries with strong automotive manufacturing bases. Understanding the specific application (oil vs. petrol) and engine type is crucial for correct classification and trade compliance, as these filters are high-volume consumables in the global maintenance and repair market.
- Covers
- Spin-on oil filters
- Cartridge oil filters
- Gasoline filters
- Diesel fuel filters
- Inline fuel filters
- High-performance oil filters
- Marine engine fuel filters
- Examples
- Bosch oil filters
- Mann-Filter fuel filters
- Fram Extra Guard oil filters
- Wix fuel filters
Codes often confused with 8421.23
Common mistake. This code is often confused with 842131 (intake air filters for engines) or 842129 (other liquid filters) if the specific application for internal combustion engine oil/petrol is overlooked.
Top exporters and importers of HS code 842123, 2025
In 2025, the largest exporter of HS code 842123 in UN Comtrade data was Germany, with 18% of world exports; the largest importer in UN Comtrade data was the United States, with 15% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $1.7B 18% of world exports
- 2 China $1.3B 14% of world exports
- 3 United States $1.2B 12% of world exports
World total: $9.7B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $1.5B 15% of world imports
- 2 Germany $896M 8.8% of world imports
- 3 Canada $448M 4.4% of world imports
World total: $10.2B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 8421.23
Brazil does not split HS 8421.23: its NCM code is 8421.23.00.
All Brazil NCM codes in heading 84.21 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8421.23
What is HS code 842123?
HS code 842123 is a 6-digit subheading in the Harmonized System that covers: Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines. This HS code encompasses machinery designed for filtering or purifying oil or petrol specifically for internal combustion engines. This includes a vast array of filters crucial for the automotive, marine, and heavy equipment sectors. These components are vital for protecting engines from contaminants, ensuring optimal performance, extending engine life, and maintaining fuel efficiency. Key players in this trade include major automotive parts manufacturers, aftermarket suppliers, and vehicle assembly plants. Importers are typically auto parts distributors, repair shops, and vehicle manufacturers globally, while exporters are often countries with strong automotive manufacturing bases. Understanding the specific application (oil vs. petrol) and engine type is crucial for correct classification and trade compliance, as these filters are high-volume consumables in the global maintenance and repair market.
What products fall under HS code 842123?
Spin-on oil filters, cartridge oil filters, gasoline filters, diesel fuel filters, inline fuel filters, high-performance oil filters, marine engine fuel filters
What are common misclassifications for HS code 842123?
This code is often confused with 842131 (intake air filters for engines) or 842129 (other liquid filters) if the specific application for internal combustion engine oil/petrol is overlooked.
Which countries are the top exporters of goods under HS code 842123?
In 2025, the top exporters of HS code 842123 in UN Comtrade data were Germany ($1.7B, 18% of world exports), China ($1.3B) and the United States ($1.2B). World exports came to about $9.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 842123?
In 2025, the top importers of HS code 842123 in UN Comtrade data were the United States ($1.5B, 15% of world imports), Germany ($896M) and Canada ($448M). World imports came to about $10.2B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 842123 structured?
HS code 842123 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (21) identify the heading, and digits 5-6 (23) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 842123?
In Brazil, HS code 842123 is NCM 8421.23.00. The last two digits are 00 because Brazil does not split this HS code further.