Product classification
HS code for Hydraulic test bench: 9031.20
Test benches.
Classification of hydraulic test bench under HS 9031.20
A hydraulic test bench is classified under HS code 9031.20, which is the specific designation for test benches. This classification is determined by the primary function of the equipment: measuring, checking, and verifying the performance and integrity of hydraulic components. Chapter 90 of the Harmonized System covers optical, photographic, measuring, and checking instruments. Heading 9031 specifically includes measuring or checking instruments, appliances, and machines not specified elsewhere in the chapter. A hydraulic test bench is a complex apparatus that typically includes a reservoir, pumps, gauges, and control valves, all integrated into a single unit designed to simulate operational conditions for pumps, valves, and cylinders. The classification is based on the bench being a complete, functional unit for testing, rather than a collection of individual parts. It is used in quality control and maintenance environments to ensure that hydraulic systems meet safety and performance specifications before being deployed in the field.
- Covers
- Hydraulic pump test stands
- Valve performance test benches
- Cylinder pressure testing units
- Hydrostatic transmission test benches
- Universal hydraulic component testers
- Also under 9031.20
- AVL Test Systems
- FEV Test Systems
- Horiba Test Systems
- DynoJet (industrial dynamometers)
Codes often confused with 9031.20
Common mistake. Hydraulic test benches are sometimes misclassified under HS code 8413 or 8412 because they contain pumps and hydraulic motors. However, since the primary purpose of the assembly is testing and measurement rather than fluid transfer or power generation, Chapter 90 takes precedence over Chapter 84. Additionally, they may be confused with HS code 9031.80 (other measuring instruments), but 9031.20 is more specific as it explicitly mentions test benches.
Top exporters and importers of HS 903120 (the code used for hydraulic test bench), 2025
In 2025, the largest exporter of HS 903120 (the code used for hydraulic test bench) in UN Comtrade data was Germany, with 29% of world exports; the largest importer in UN Comtrade data was China, with 19% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 903120, not only hydraulic test bench.
Top exporters 2025 · share of world exports
- 1 Germany $557M 29% of world exports
- 2 Italy $226M 12% of world exports
- 3 Austria $166M 8.6% of world exports
World total: $1.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $289M 19% of world imports
- 2 United States $208M 13% of world imports
- 3 India $85M 5.5% of world imports
World total: $1.6B 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 codes for hydraulic test bench
Brazil splits HS 9031.20 into 2 NCM codes. Pick the one that matches your product:
- 9031.20.10Engine test benches
- 9031.20.90Other test benches
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about hydraulic test bench
What is the HS code for Hydraulic test bench?
The HS code for Hydraulic test bench is 903120 (Test benches). The HS code for a hydraulic test bench is 9031.20.
How do I classify Hydraulic test bench for customs?
Hydraulic test bench is classified under HS code 903120 — Test benches. This is a 6-digit subheading level code.
Are individual hydraulic gauges classified here?
No, individual pressure gauges are typically classified under HS code 9026.20; only the integrated test bench unit falls under 9031.20.
Which countries are the top exporters of hydraulic test bench (HS 903120)?
In 2025, the top exporters of HS 903120 (the code used for hydraulic test bench) in UN Comtrade data were Germany ($557M, 29% of world exports), Italy ($226M) and Austria ($166M). World exports came to about $1.9B, 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 hydraulic test bench (HS 903120)?
In 2025, the top importers of HS 903120 (the code used for hydraulic test bench) in UN Comtrade data were China ($289M, 19% of world imports), the United States ($208M) and India ($85M). World imports came to about $1.6B, 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.
Is the HS code for Hydraulic test bench the same in all countries?
The base HS code 903120 for Hydraulic test bench is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for hydraulic test bench in Brazil?
Brazil splits HS 903120 into 2 NCM codes, so the right one for hydraulic test bench depends on the product's details: 9031.20.10 (Engine test benches), 9031.20.90 (Other test benches).