HS code · 6-digit subheading
HS Code 8410.90 – Turbines; parts of hydraulic turbines and water wheels, including regulators
HS code 8410.90 is the 6-digit subheading for turbines, parts of hydraulic turbines and water wheels, including regulators. It is used for turbine runners, guide vanes, wicket gates, draft tubes and turbine shafts.
What HS 8410.90 covers
This HS code covers parts of hydraulic turbines and water wheels, including their regulators, essential for the maintenance, repair, and upgrade of hydropower infrastructure worldwide. This trade segment is crucial for ensuring the longevity and optimal performance of existing hydropower plants, ranging from micro-hydro to massive installations. Importers include power plant operators, MRO service providers, and specialized engineering firms, while exporters are often the original equipment manufacturers or specialized component suppliers. Key aspects involve precision manufacturing, material science for extreme conditions, and the ability to integrate with diverse turbine designs. The global demand for these parts reflects the ongoing investment in renewable energy and the need to sustain existing assets.
- Covers
- Turbine runners
- Guide vanes
- Wicket gates
- Draft tubes
- Turbine shafts
- Bearings for hydro turbines
- Governors for hydro turbines
- Control systems for hydro turbines
- Seals for hydro turbines
- Examples
- Voith Hydro turbine parts
- Andritz Hydro replacement components
- GE Renewable Energy hydro turbine spares
- Woodward governors
Codes often confused with 8410.90
Common mistake. Could be confused with 84101x (complete turbines) or 8412 (other engines/motors), but 841090 is specifically for parts of hydraulic turbines, not the full machines.
Top exporters and importers of HS code 841090, 2025
In 2025, the largest exporter of HS code 841090 in UN Comtrade data was China, with 28% of world exports; the largest importer in UN Comtrade data was the United States, with 7.2% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $247M 28% of world exports
- 2 Italy $98M 11% of world exports
- 3 Czechia $73M 8.4% of world exports
World total: $868M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $58M 7.2% of world imports
- 2 Angola $54M 6.7% of world imports
- 3 Austria $48M 5.9% of world imports
World total: $809M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 8410.90
Brazil does not split HS 8410.90: its NCM code is 8410.90.00.
All Brazil NCM codes in heading 84.10 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8410.90
What is HS code 841090?
HS code 841090 is a 6-digit subheading in the Harmonized System that covers: Turbines; parts of hydraulic turbines and water wheels, including regulators. This HS code covers parts of hydraulic turbines and water wheels, including their regulators, essential for the maintenance, repair, and upgrade of hydropower infrastructure worldwide. This trade segment is crucial for ensuring the longevity and optimal performance of existing hydropower plants, ranging from micro-hydro to massive installations. Importers include power plant operators, MRO service providers, and specialized engineering firms, while exporters are often the original equipment manufacturers or specialized component suppliers. Key aspects involve precision manufacturing, material science for extreme conditions, and the ability to integrate with diverse turbine designs. The global demand for these parts reflects the ongoing investment in renewable energy and the need to sustain existing assets.
What products fall under HS code 841090?
Turbine runners, guide vanes, wicket gates, draft tubes, turbine shafts, bearings for hydro turbines, governors for hydro turbines, control systems for hydro turbines, seals for hydro turbines
What are common misclassifications for HS code 841090?
Could be confused with 84101x (complete turbines) or 8412 (other engines/motors), but 841090 is specifically for parts of hydraulic turbines, not the full machines.
Which countries are the top exporters of goods under HS code 841090?
In 2025, the top exporters of HS code 841090 in UN Comtrade data were China ($247M, 28% of world exports), Italy ($98M) and Czechia ($73M). World exports came to about $868M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 841090?
In 2025, the top importers of HS code 841090 in UN Comtrade data were the United States ($58M, 7.2% of world imports), Angola ($54M) and Austria ($48M). World imports came to about $809M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 841090 structured?
HS code 841090 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (10) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 841090?
In Brazil, HS code 841090 is NCM 8410.90.00. The last two digits are 00 because Brazil does not split this HS code further.