Code 8404 90 · Heading 8404

Parts for boiler auxiliary apparatus or steam-engine condensers, not specified elsewhere

This code covers parts for auxiliary apparatus used with boilers of the specified type, and parts for steam-engine condensers. It does not cover the complete auxiliary apparatus or the complete condensers themselves.

For example

A replacement part for a boiler economiser, not the complete economiser
A replacement part for a boiler superheater, not the complete superheater
A replacement part for a steam-engine condenser, not the complete condenser

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See the official tariff text

Official tariff text

Parts of auxiliary plant of heading 8402 or 8403 and condensers for steam or other vapour power units, n.e.s.

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section XVI Machinery and mechanical appliances; electrical equ…
Is the product a machine, apparatus or mechanical tool, or is it electrical equipment, a sound recorder or player, or a television image and sound recorder or player?
✓
Step 2 · Chapter 84 Nuclear reactors, boilers, machinery and mechanical… 1 of 2 chapters in section XVI
What is the machine, appliance or part specifically designed to do?
✓
Step 3 · Heading 8404 Auxiliary plant for use with boilers of heading 840… 4 of 86 headings under chapter 84
Is the item a boiler auxiliary for a boiler of 8402 or 8403, a condenser for a steam engine, or a part for one of these?
✓
Step 4 · Subheading 8404 90 Parts of auxiliary plant of heading 8402 or 8403 an… 3 of 3 subheadings under heading 8404
Is the item itself an auxiliary apparatus for a boiler of the specified type or a steam-engine condenser, rather than a part for one of these?

This is the catch-all under 8404: it covers what the sibling codes below do not.

Within the parent group, this is for parts of the named boiler auxiliary apparatus and steam-engine condensers because the sibling codes name the complete auxiliary apparatus and complete condensers instead.

Full 8-digit codes

Pick the description that best matches your product.

1 code below this one

8404 90 00 Parts of auxiliary plant of heading 8402 or 8403 and condensers for steam or other vapour power units, n.e.s. 2.7% Save

Compare the sibling codes

8404 10 Auxiliary plant for use with boilers of heading 8402 or 8403, e.g. economizers, superheaters, soot removers and gas recoverers; 2.7%
8404 20 Condensers for steam or other vapour power units 2.7%
8404 90 Parts of auxiliary plant of heading 8402 or 8403 and condensers for steam or other vapour power units, n.e.s. you are here 2.7%

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

84.04.9000

Parts

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 3, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

8404 90 00 00

Parts

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 3 codes at this level

Previous code 8404 20

Condensers for steam or other vapour power units

you are here 8404 90

Parts of auxiliary plant of heading 8402 or 8403 and condensers for s…

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.