Key facts
- HS code
- 8403.10
- Covers
- Boilers
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 8403.10 covers boilers. It sits in heading 84.03 (central heating boilers other than those of heading 84.02) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof). Other goods of heading 84.03 are classified under 8403.90 (parts).
What this code covers
HS code 8403.10 covers boilers.
The legal text of the subheading is “Boilers”, in HS2022.
How it is structured
8403.10 is a six-digit subheading. Its first two digits, 84, are the chapter; the first four, 8403, are heading 84.03; the last two, 10, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Subheading 8403.10
- Boilers
In other countries
No national tariff lines under 8403.10 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 8403.10 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 8403.10 cover?
HS code 8403.10 covers boilers.
Which heading and chapter is HS code 8403.10 in?
HS code 8403.10 is in heading 84.03 (central heating boilers other than those of heading 84.02) in chapter 84 (nuclear reactors, boilers, machinery and mechanical appliances; parts thereof).
Where are goods of heading 84.03 classified when 8403.10 doesn’t fit?
Other goods of heading 84.03 are classified under 8403.90 (parts).
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 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.