HS Code 840731
Of a cylinder capacity not exceeding 50 cm³
Official description: Sparkignition reciprocating or rotary internal combustion piston engines : Reciprocating piston engines of a kind used for the propulsion of vehicles of Chapter 87 : Of a cylinder capacity not exceeding 50 cm³
Also searched as: small engine, 50cc engine, moped engine, scooter engine
Classification
How 840731 breaks down
Nuclear reactors, boilers, machinery and mechanical appliances; parts
Sparkignition reciprocating or rotary internal combustion piston engines
Of a cylinder capacity not exceeding 50 cm³
Covered products
What products fall under HS code 840731?
Buyers sourcing of a cylinder capacity not exceeding 50 cm³ from 1688 commonly describe it in these ways. If your product matches, 840731 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 840731
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 840731 by destination before you pay a 1688 supplier.
Heading 8407
Other HS codes under 8407
Subheadings in the same 4-digit heading — "Sparkignition reciprocating or rotary internal combustion piston engines". If 840731 is not an exact match, one of these may classify your product more precisely.
Questions
HS code 840731: common questions
What is HS code 840731?
HS code 840731 is the World Customs Organization 6-digit HS 2022 subheading for "Sparkignition reciprocating or rotary internal combustion piston engines : Reciprocating piston engines of a kind used for the propulsion of vehicles of Chapter 87 : Of a cylinder capacity not exceeding 50 cm³". The first two digits (84) are the chapter — Nuclear reactors, boilers, machinery and mechanical appliances; parts — and digits 3-4 (8407) are the heading. Countries add further digits (8-10) for their national tariff line.
What products fall under HS 840731?
Common products classified under 840731 include small engine, 50cc engine, moped engine, scooter engine and similar items matching of a cylinder capacity not exceeding 50 cm³. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 840731?
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 840731 the same in every country?
The first 6 digits (840731) 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 of a cylinder capacity not exceeding 50 cm³ 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.