Product classification
HS code for Marine gasoline engine: 8407.29
Engines, for marine propulsion, (other than outboard motors), spark-ignition reciprocating or rotary internal combustion piston engines.
Classification of marine gasoline engine under HS 8407.29
Marine gasoline engines are classified under HS code 8407.29. This code is situated within Chapter 84, which covers nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8407 specifically addresses spark-ignition reciprocating or rotary internal combustion piston engines. Within this heading, the code is further subdivided based on the engine's application. Subheading 8407.21 is dedicated to outboard motors, while 8407.29 covers all other marine propulsion engines. Therefore, inboard gasoline engines, whether used in small pleasure crafts or larger commercial vessels, fall under 8407.29. The classification is driven by the engine's primary function (marine propulsion) and its ignition type (spark-ignition). It excludes diesel engines, which are compression-ignition and classified under heading 8408. The engine must be designed specifically for marine use, often featuring specialized cooling systems (heat exchangers or raw water cooling) and corrosion-resistant components to withstand the maritime environment. The distinction between reciprocating and rotary engines is also captured under this heading, though most marine gasoline engines are of the reciprocating type.
- Covers
- Inboard spark-ignition gasoline engines for boats
- Sterndrive (I/O) gasoline engines (excluding the drive unit if shipped separately)
- Marine rotary spark-ignition engines
- Gasoline engines for jet boats
- Also under 8407.29
- Volvo Penta V8-380
- MerCruiser 6.2L MPI
- Ilmor MV8 7.4L
- Crusader Captain's Choice 6.0L
- Indmar Raptor 400
Codes often confused with 8407.29
Common mistake. The most common misclassification is with HS code 8407.21, which is strictly for outboard motors. An inboard engine, even if small, must be classified under 8407.29. Another error is using 8408.10, which is for marine propulsion engines of the compression-ignition (diesel) type. It is vital to distinguish between the ignition systems (spark vs. compression) to select the correct code.
Top exporters and importers of HS 840729 (the code used for marine gasoline engine), 2025
In 2025, the largest exporter of HS 840729 (the code used for marine gasoline engine) in UN Comtrade data was Japan, with 45% of world exports; the largest importer in UN Comtrade data was Brazil, with 17% 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 840729, not only marine gasoline engine.
Top exporters 2025 · share of world exports
- 1 Japan $167M 45% of world exports
- 2 United States $71M 19% of world exports
- 3 Austria $70M 19% of world exports
World total: $366M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $28M 17% of world imports
- 2 United States $21M 12% of world imports
- 3 Belgium $14M 8.5% of world imports
World total: $166M 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 marine gasoline engine
Brazil splits HS 8407.29 into 2 NCM codes. Pick the one that matches your product:
- 8407.29.10Single-cylinder spark-ignition marine inboards
- 8407.29.90Other spark-ignition marine inboard engines
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about marine gasoline engine
What is the HS code for Marine gasoline engine?
The HS code for Marine gasoline engine is 840729 (Engines; for marine propulsion, (other than outboard motors), spark-ignition reciprocating or rotary internal combustion piston engines). The HS code for a marine gasoline engine (other than an outboard motor) is 8407.29.
How do I classify Marine gasoline engine for customs?
Marine gasoline engine is classified under HS code 840729 — Engines; for marine propulsion, (other than outboard motors), spark-ignition reciprocating or rotary internal combustion piston engines. This is a 6-digit subheading level code.
Does this code include diesel marine engines?
No, diesel marine engines are classified under HS code 8408.10 because they are compression-ignition engines.
Which countries are the top exporters of marine gasoline engine (HS 840729)?
In 2025, the top exporters of HS 840729 (the code used for marine gasoline engine) in UN Comtrade data were Japan ($167M, 45% of world exports), the United States ($71M) and Austria ($70M). World exports came to about $366M, 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 marine gasoline engine (HS 840729)?
In 2025, the top importers of HS 840729 (the code used for marine gasoline engine) in UN Comtrade data were Brazil ($28M, 17% of world imports), the United States ($21M) and Belgium ($14M). World imports came to about $166M, 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 Marine gasoline engine the same in all countries?
The base HS code 840729 for Marine gasoline engine 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 marine gasoline engine in Brazil?
Brazil splits HS 840729 into 2 NCM codes, so the right one for marine gasoline engine depends on the product's details: 8407.29.10 (Single-cylinder spark-ignition marine inboards), 8407.29.90 (Other spark-ignition marine inboard engines).