Product classification
HS code for Silencer: 8708.92
Vehicle parts, silencers (mufflers) and exhaust pipes, parts thereof.
Classification of silencer under HS 8708.92
The classification of vehicle silencers, commonly known as mufflers, is governed by the General Rules for the Interpretation (GRI) of the Harmonized System. Under the HS nomenclature, products are classified based on their function, material composition, and intended use. Silencers are integral components of a vehicle's exhaust system, designed to reduce the noise emitted by the internal combustion engine through the use of complex internal baffles, chambers, or sound-absorbing materials. Consequently, they are classified under Chapter 87, which covers vehicles other than railway or tramway rolling-stock, and parts and accessories thereof. Specifically, heading 8708 encompasses parts and accessories of the motor vehicles of headings 8701 to 8705. Within this heading, subheading 8708.92 is explicitly reserved for silencers (mufflers) and exhaust pipes, as well as their constituent parts. This classification applies regardless of whether the silencer is imported as a standalone replacement part or as part of a complete exhaust assembly, provided it is intended for use with motor vehicles such as passenger cars, trucks, or tractors. The determination of this code relies on the fact that the item is an identifiable part of a motor vehicle and performs a specific mechanical function related to the exhaust system. It is important to note that the material of the silencer, whether stainless steel, aluminized steel, or chrome-plated, does not change the primary classification under 8708.92, as the functional use as a vehicle part takes precedence over the material composition in this instance. Furthermore, parts of silencers, such as internal tubes or outer shells, are also classified here under the provision for \"parts thereof.\"
- Covers
- Exhaust silencers (mufflers)
- Exhaust pipes and tailpipes
- Resonator boxes for exhaust systems
- Exhaust manifolds (when part of the pipe assembly)
- Internal baffles and shells for mufflers
- Also under 8708.92
- MagnaFlow Mufflers
- Borla Exhaust Systems
- Bosal Exhaust Pipes
- Walker Exhaust
- Tenneco Clean Air Systems
Codes often confused with 8708.92
Common mistake. Silencers are frequently misclassified under HS code 8409, which covers parts suitable for use solely or principally with internal combustion engines. However, the Explanatory Notes to Section XVII clarify that exhaust systems are considered vehicle parts rather than engine parts. Another common error is using HS codes 7304, 7305, or 7306, which cover various types of steel pipes. While a silencer is made of pipe, once it is shaped and finished for a specific vehicle application, it must be classified under 8708.92.
Top exporters and importers of HS 870892 (the code used for silencer), 2025
In 2025, the largest exporter of HS 870892 (the code used for silencer) in UN Comtrade data was Czechia, with 16% of world exports; the largest importer in UN Comtrade data was the United States, with 16% 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 870892, not only silencer.
Top exporters 2025 · share of world exports
- 1 Czechia $1.6B 16% of world exports
- 2 Germany $1.3B 13% of world exports
- 3 China $1.3B 12% of world exports
World total: $10.1B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $1.4B 16% of world imports
- 2 Germany $1.0B 12% of world imports
- 3 Mexico $519M 6.0% of world imports
World total: $8.7B 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 silencer
Brazil classifies silencer under NCM 8708.92.00: HS 8708.92 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about silencer
What is the HS code for Silencer?
The HS code for Silencer is 870892 (Vehicle parts; silencers (mufflers) and exhaust pipes; parts thereof). The HS code for vehicle silencers (mufflers) and exhaust pipes is 8708.92.
How do I classify Silencer for customs?
Silencer is classified under HS code 870892 — Vehicle parts; silencers (mufflers) and exhaust pipes; parts thereof. This is a 6-digit subheading level code.
Are motorcycle silencers included in this code?
No, motorcycle silencers are classified under HS code 8714.10, which is specifically for parts and accessories of motorcycles.
Which countries are the top exporters of silencer (HS 870892)?
In 2025, the top exporters of HS 870892 (the code used for silencer) in UN Comtrade data were Czechia ($1.6B, 16% of world exports), Germany ($1.3B) and China ($1.3B). World exports came to about $10.1B, 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 silencer (HS 870892)?
In 2025, the top importers of HS 870892 (the code used for silencer) in UN Comtrade data were the United States ($1.4B, 16% of world imports), Germany ($1.0B) and Mexico ($519M). World imports came to about $8.7B, 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 Silencer the same in all countries?
The base HS code 870892 for Silencer 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 silencer in Brazil?
In Brazil, silencer (HS 870892) is classified under NCM 8708.92.00.