HS code · 6-digit subheading
HS Code 8407.21 – Engines; outboard motors for marine propulsion, spark-ignition reciprocating or rotary internal combustion piston engines
HS code 8407.21 is the 6-digit subheading for engines, outboard motors for marine propulsion, spark-ignition reciprocating or rotary internal combustion piston engines. It is used for outboard boat engines, portable outboard motors, high-performance outboard engines, electric start outboards and two-stroke outboard motors.
What HS 8407.21 covers
This code encompasses spark-ignition internal combustion engines specifically designed as outboard motors for marine propulsion. These are crucial components for recreational boats, small fishing vessels, and tenders, providing the power to move through water. International trade in these engines is driven by global demand for leisure boating and small-scale commercial fishing, with major manufacturers often located in countries with strong maritime traditions or significant recreational water sports industries. Importers include boat builders, marine equipment distributors, and retailers serving end-users. Exporters are typically large engine manufacturers. Key considerations in trade include engine power output, fuel efficiency, emissions standards, and technological advancements like electronic fuel injection, which impact market competitiveness and regulatory compliance across different regions. The market is influenced by seasonal demand and economic conditions affecting discretionary spending on leisure activities.
- Covers
- Outboard boat engines
- Portable outboard motors
- High-performance outboard engines
- Electric start outboards
- Two-stroke outboard motors
- Four-stroke outboard motors
- Small fishing boat engines
- Examples
- Yamaha F25
- Mercury 150 Pro XS
- Honda BF2.3
- Suzuki DF300AP
- Tohatsu MFS9.8
Codes often confused with 8407.21
Common mistake. This code might be confused with 840729 (other marine spark-ignition engines) if the "outboard" distinction is missed, or with 840810 (marine diesel engines) if the ignition type is not correctly identified.
Top exporters and importers of HS code 840721, 2025
In 2025, the largest exporter of HS code 840721 in UN Comtrade data was Japan, with 57% of world exports; the largest importer in UN Comtrade data was the United States, with 26% 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 Japan $1.9B 57% of world exports
- 2 United States $520M 16% of world exports
- 3 Belgium $274M 8.2% of world exports
World total: $3.4B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $871M 26% of world imports
- 2 Belgium $224M 6.8% of world imports
- 3 Canada $194M 5.9% of world imports
World total: $3.3B 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 codes for 8407.21 2
Brazil splits HS 8407.21 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 8407.21.10 Single-cylinder spark-ignition outboard motorsMonocilíndricos
- 8407.21.90 Other spark-ignition outboard motorsOutros
All Brazil NCM codes in heading 84.07 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8407.21
What is HS code 840721?
HS code 840721 is a 6-digit subheading in the Harmonized System that covers: Engines; outboard motors for marine propulsion, spark-ignition reciprocating or rotary internal combustion piston engines. This code encompasses spark-ignition internal combustion engines specifically designed as outboard motors for marine propulsion. These are crucial components for recreational boats, small fishing vessels, and tenders, providing the power to move through water. International trade in these engines is driven by global demand for leisure boating and small-scale commercial fishing, with major manufacturers often located in countries with strong maritime traditions or significant recreational water sports industries. Importers include boat builders, marine equipment distributors, and retailers serving end-users. Exporters are typically large engine manufacturers. Key considerations in trade include engine power output, fuel efficiency, emissions standards, and technological advancements like electronic fuel injection, which impact market competitiveness and regulatory compliance across different regions. The market is influenced by seasonal demand and economic conditions affecting discretionary spending on leisure activities.
What products fall under HS code 840721?
Outboard boat engines, Portable outboard motors, High-performance outboard engines, Electric start outboards, Two-stroke outboard motors, Four-stroke outboard motors, Small fishing boat engines
What are common misclassifications for HS code 840721?
This code might be confused with 840729 (other marine spark-ignition engines) if the "outboard" distinction is missed, or with 840810 (marine diesel engines) if the ignition type is not correctly identified.
Which countries are the top exporters of goods under HS code 840721?
In 2025, the top exporters of HS code 840721 in UN Comtrade data were Japan ($1.9B, 57% of world exports), the United States ($520M) and Belgium ($274M). World exports came to about $3.4B, 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 840721?
In 2025, the top importers of HS code 840721 in UN Comtrade data were the United States ($871M, 26% of world imports), Belgium ($224M) and Canada ($194M). World imports came to about $3.3B, 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 840721 structured?
HS code 840721 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (07) identify the heading, and digits 5-6 (21) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 840721?
Brazil splits HS code 840721 into 2 NCM codes: 8407.21.10 (Single-cylinder spark-ignition outboard motors), 8407.21.90 (Other spark-ignition outboard motors). The first 6 digits of each match the HS code.