Product classification
HS code for Aviation engines: 8407.10
Engines, for aircraft, spark-ignition reciprocating or rotary internal combustion piston engines.
Classification of aviation engines under HS 8407.10
Aviation engines are classified under HS code 8407.10 because they are specifically identified as spark-ignition reciprocating or rotary internal combustion piston engines designed for aircraft. This classification is governed by the Harmonized System's General Rules of Interpretation (GRI). Chapter 84 encompasses machinery and mechanical appliances, and heading 8407 is dedicated to spark-ignition engines. The subheading 8407.10 is the most specific designation for those used in aviation. These engines are distinct from compression-ignition engines (diesel) and from turbo-jets or turbo-propellers. The classification applies to the engine as a whole, whether it is imported for use in a new aircraft or as a replacement part for an existing one. The technical criteria for this code require the engine to utilize a spark-ignition system and a piston-based mechanism. This excludes electric motors or pure jet engines, which are classified under different headings. Understanding the distinction between piston-driven and turbine-driven propulsion is essential for correct classification in the aerospace sector. The engine must be specifically designed for aircraft use to qualify for this subheading, which often involves meeting rigorous aviation safety and performance standards.
- Covers
- Spark-ignition reciprocating piston engines for light aircraft
- Rotary internal combustion engines for unmanned aerial vehicles (UAVs)
- Piston engines for helicopters utilizing spark-ignition systems
- Remanufactured or new spark-ignition aviation piston engines
- Horizontal or radial piston engines for vintage aircraft restoration
- Also under 8407.10
- Lycoming IO-360
- Continental O-200
- Rotax 912
- Jabiru 3300
- Pratt & Whitney R-2800 (for vintage aircraft restoration)
Codes often confused with 8407.10
Common mistake. A common misclassification occurs with HS code 8411, which covers turbo-jets, turbo-propellers, and other gas turbines. While both are aircraft engines, 8411 is for turbine-based propulsion, whereas 8407.10 is strictly for piston-based spark-ignition engines. Another error involves HS code 8408.10, which is for marine propulsion engines, or 8408.90 for other compression-ignition (diesel) engines. If an aircraft engine uses compression-ignition rather than spark-ignition, it cannot be placed in 8407.10. Additionally, parts of these engines should be classified under 8409.10 rather than the engine code itself.
Top exporters and importers of HS 840710 (the code used for aviation engines), 2025
In 2025, the largest exporter of HS 840710 (the code used for aviation engines) in UN Comtrade data was Singapore, with 27% of world exports; the largest importer in UN Comtrade data was Saudi Arabia, with 29% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 840710, not only aviation engines.
Top exporters 2025 · share of world exports
- 1 Singapore $879M 27% of world exports
- 2 Saudi Arabia $667M 21% of world exports
- 3 Kuwait $214M 6.6% of world exports
World total: $3.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Saudi Arabia $907M 29% of world imports
- 2 Thailand $394M 13% of world imports
- 3 Singapore $224M 7.2% of world imports
World total: $3.1B 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 aviation engines
Brazil classifies aviation engines under NCM 8407.10.00: HS 8407.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about aviation engines
What is the HS code for Aviation engines?
The HS code for Aviation engines is 840710 (Engines; for aircraft, spark-ignition reciprocating or rotary internal combustion piston engines). The HS code for spark-ignition reciprocating or rotary internal combustion piston engines for aircraft is 8407.10.
How do I classify Aviation engines for customs?
Aviation engines is classified under HS code 840710 — Engines; for aircraft, spark-ignition reciprocating or rotary internal combustion piston engines. This is a 6-digit subheading level code.
Does this code include jet engines?
No, jet engines (turbo-jets) are classified under HS code 8411.11 or 8411.12, depending on their thrust capacity.
Which countries are the top exporters of aviation engines (HS 840710)?
In 2025, the top exporters of HS 840710 (the code used for aviation engines) in UN Comtrade data were Singapore ($879M, 27% of world exports), Saudi Arabia ($667M) and Kuwait ($214M). World exports came to about $3.2B, 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.
Which countries are the top importers of aviation engines (HS 840710)?
In 2025, the top importers of HS 840710 (the code used for aviation engines) in UN Comtrade data were Saudi Arabia ($907M, 29% of world imports), Thailand ($394M) and Singapore ($224M). World imports came to about $3.1B, 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.
Is the HS code for Aviation engines the same in all countries?
The base HS code 840710 for Aviation engines is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for aviation engines in Brazil?
In Brazil, aviation engines (HS 840710) is classified under NCM 8407.10.00.