HS Code 840390
Parts
Official description: Central heating boilers other than those of heading 8402 : Parts
Also searched as: central heating boiler parts, boiler components, heating system parts
Classification
How 840390 breaks down
Nuclear reactors, boilers, machinery and mechanical appliances; parts
Central heating boilers other than those of heading 8402
Parts
Covered products
What products fall under HS code 840390?
Buyers sourcing parts from 1688 commonly describe it in these ways. If your product matches, 840390 is likely the right 6-digit starting point — confirm material and intended use against the official tariff.
Import duty by market
Where to check the import duty for HS 840390
The 6-digit code is universal, but duty, VAT and GST are set by the destination country and depend on the full national tariff line with China as the country of origin. Start from the official source for your market.
United States
USITC / CBP · Harmonized Tariff Schedule (HTS)
European Union
TARIC · Access2Markets
United Kingdom
HMRC · UK Integrated Online Tariff
Canada
CBSA · Canadian Customs Tariff
Australia
ABF · Australian customs tariff
Singapore
Singapore Customs · Singapore Trade Classification (HS)
Compare the real China-origin import tax across markets
Use the HS & import duty checker to estimate duty + VAT/GST for 840390 by destination before you pay a 1688 supplier.
Heading 8403
Other HS codes under 8403
Subheadings in the same 4-digit heading — "Central heating boilers other than those of heading 8402". If 840390 is not an exact match, one of these may classify your product more precisely.
Questions
HS code 840390: common questions
What is HS code 840390?
HS code 840390 is the World Customs Organization 6-digit HS 2022 subheading for "Central heating boilers other than those of heading 8402 : Parts". The first two digits (84) are the chapter — Nuclear reactors, boilers, machinery and mechanical appliances; parts — and digits 3-4 (8403) are the heading. Countries add further digits (8-10) for their national tariff line.
What products fall under HS 840390?
Common products classified under 840390 include central heating boiler parts, boiler components, heating system parts and similar items matching parts. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 840390?
Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.
Is HS code 840390 the same in every country?
The first 6 digits (840390) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.
Can I trust the HS code a 1688 supplier gives me?
Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.
Chapter 84
Explore Nuclear reactors, boilers, machinery and mechanical appliances; parts
Sourcing parts from 1688?
Get a written pre-payment check — classification clues, China-origin landed cost, and supplier risk — before you commit. 5,754 HS codes covered.