Key facts
- HS code
- 8408.10
- Covers
- Marine propulsion engines
- Heading
- 84.08: Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)
- Edition
- HS2022
- Duty in the United States
- See its 6 lines
Summary
HS code 8408.10 covers marine propulsion engines. It sits in heading 84.08 (compression-ignition internal combustion piston engines (diesel or semi-diesel engines)) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.08 are classified under 8408.20 (engines of a kind used for the propulsion of vehicles of Chapter 87) or 8408.90 (other engines). National tariff lines under 8408.10 are live on border.bot for the United States (6 lines, also used by 1 other country).
What this code covers
HS code 8408.10 covers marine propulsion engines.
The legal text of the subheading is “Marine propulsion engines”, in HS2022.
How it is structured
8408.10 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8408, are heading 84.08; the last two, 10, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Heading 84.08
- Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)
- Subheading 8408.10
- Marine propulsion engines
In other countries
National tariff lines under 8408.10 are live on border.bot for the United States (6 lines, also used by 1 other country).
- United States6 lines, used by 1 other country
Frequently asked questions
What does HS code 8408.10 cover?
HS code 8408.10 covers marine propulsion engines.
Which heading and chapter is HS code 8408.10 in?
HS code 8408.10 is in heading 84.08 (compression-ignition internal combustion piston engines (diesel or semi-diesel engines)) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).
Where are goods of heading 84.08 classified when 8408.10 doesn’t fit?
Other goods of heading 84.08 are classified under 8408.20 (engines of a kind used for the propulsion of vehicles of Chapter 87) or 8408.90 (other engines).
Which countries’ tariffs list national lines under HS code 8408.10?
National tariff lines under 8408.10 are live on border.bot for the United States (6 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.