Chapter 84 · Machinery and mechanical appliances; computers · Section 16
HS Code 8404.10
Auxiliary plant for use with boilers of heading 8402 or 8403
Heading 8404: Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof
US HTS + UK Tariff v4.0.1633 · updated 2026-10-21 · sources
Rates on this page are the official published schedule rates, shown for information. This is not a customs ruling: preference programs, Section 232/301 surcharges and per-shipment fees can change what you actually pay.
United States - HTS lines under 8404.10
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 8404.10.00 |
Auxiliary plant for use with boilers of heading 8402 or 8403 2 statistical lines (10-digit)
|
3.5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | t |
Estimate the US duty runs in your browser · no caps
Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 8404.10
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 8404 10 00 | Auxiliary plant for use with boilers of heading 8402 or 8403 | EU duty (TARIC) → |
United Kingdom - commodity codes under 8404.10
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 8404 10 00 00 | Auxiliary plant for use with boilers of heading 8402 or 8403 | UK duty & VAT → |
Nearby codes in heading 8404
The subheadings immediately before and after 8404.10 in chapter 84.
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.
Frequently asked questions
Common questions about HS code 8404.10.
What is HS code 8404.10?
HS code 8404.10 covers: Auxiliary plant for use with boilers of heading 8402 or 8403. It belongs to chapter 84 (Machinery and mechanical appliances; computers) of the Harmonized System.
What is the US import duty for HS code 8404.10?
The US general (normal trade relations) rate is: 3.5%. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.
What is the UK commodity code for 8404.10?
The UK extends 8404.10 to 1 declarable 10-digit commodity code, starting with 8404100000. The full code goes on the UK customs declaration.