HS code · 6-digit subheading
HS Code 8409.10 – Engines; parts of aircraft engines (spark-ignition reciprocating or rotary internal combustion piston engines)
HS code 8409.10 is the 6-digit subheading for engines, parts of aircraft engines (spark-ignition reciprocating or rotary internal combustion piston engines). It is used for aircraft engine spark plugs, aviation pistons, connecting rods for aircraft engines, cylinder heads for aircraft and aircraft engine crankshafts.
What HS 8409.10 covers
This HS code covers highly specialized parts for spark-ignition reciprocating or rotary internal combustion piston engines used in aircraft. This segment of international trade is characterized by stringent safety regulations, high precision manufacturing, and a relatively concentrated supply chain. Major aerospace manufacturers, MRO (Maintenance, Repair, and Overhaul) facilities, and airlines are the primary importers and exporters. Key things to know include the long product lifecycles, the need for certified parts, and the significant value associated with these components due to their critical role in aircraft safety and performance. Trade often involves complex logistics and adherence to international aviation standards, making it a high-value, low-volume market.
- Covers
- Aircraft engine spark plugs
- Aviation pistons
- Connecting rods for aircraft engines
- Cylinder heads for aircraft
- Aircraft engine crankshafts
- Valves for aviation engines
- Fuel injectors for aircraft
- Ignition coils for aircraft engines
- Examples
- Pratt & Whitney PT6A parts
- Lycoming IO-360 components
- Rotax 912 engine parts
- Continental O-200 parts
Codes often confused with 8409.10
Common mistake. This code is often confused with 840991 (parts for other spark-ignition engines) or 8803 (parts of aircraft), but 840910 is specific to engine parts for aircraft, not general aircraft components or parts for non-aviation engines.
Top exporters and importers of HS code 840910, 2025
In 2025, the largest exporter of HS code 840910 in UN Comtrade data was Saudi Arabia, with 60% of world exports; the largest importer in UN Comtrade data was Saudi Arabia, with 58% 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 Saudi Arabia $1.7B 60% of world exports
- 2 Kuwait $129M 4.5% of world exports
- 3 India $128M 4.5% of world exports
World total: $2.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Saudi Arabia $2.3B 58% of world imports
- 2 Japan $391M 9.9% of world imports
- 3 United Kingdom $222M 5.6% of world imports
World total: $3.9B 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 8409.10
Brazil does not split HS 8409.10: its NCM code is 8409.10.00.
All Brazil NCM codes in heading 84.09 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8409.10
What is HS code 840910?
HS code 840910 is a 6-digit subheading in the Harmonized System that covers: Engines; parts of aircraft engines (spark-ignition reciprocating or rotary internal combustion piston engines). This HS code covers highly specialized parts for spark-ignition reciprocating or rotary internal combustion piston engines used in aircraft. This segment of international trade is characterized by stringent safety regulations, high precision manufacturing, and a relatively concentrated supply chain. Major aerospace manufacturers, MRO (Maintenance, Repair, and Overhaul) facilities, and airlines are the primary importers and exporters. Key things to know include the long product lifecycles, the need for certified parts, and the significant value associated with these components due to their critical role in aircraft safety and performance. Trade often involves complex logistics and adherence to international aviation standards, making it a high-value, low-volume market.
What products fall under HS code 840910?
Aircraft engine spark plugs, aviation pistons, connecting rods for aircraft engines, cylinder heads for aircraft, aircraft engine crankshafts, valves for aviation engines, fuel injectors for aircraft, ignition coils for aircraft engines
What are common misclassifications for HS code 840910?
This code is often confused with 840991 (parts for other spark-ignition engines) or 8803 (parts of aircraft), but 840910 is specific to engine parts for aircraft, not general aircraft components or parts for non-aviation engines.
Which countries are the top exporters of goods under HS code 840910?
In 2025, the top exporters of HS code 840910 in UN Comtrade data were Saudi Arabia ($1.7B, 60% of world exports), Kuwait ($129M) and India ($128M). World exports came to about $2.9B, 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 840910?
In 2025, the top importers of HS code 840910 in UN Comtrade data were Saudi Arabia ($2.3B, 58% of world imports), Japan ($391M) and the United Kingdom ($222M). World imports came to about $3.9B, 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 840910 structured?
HS code 840910 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (09) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 840910?
In Brazil, HS code 840910 is NCM 8409.10.00. The last two digits are 00 because Brazil does not split this HS code further.