Harmonized System
U.S. imports of Mufflers and Exhaust Pipes for Motor Vehicles (HS 870892) totaled $121.7M in August 2026, imported from 57 countries.
Importers of Mufflers and Exhaust Pipes for Motor Vehicles paid $17.0M in duties in August 2026, an average duty rate of 15.32% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Mufflers and Exhaust Pipes for Motor Vehicles imports of $121.7M in August 2026 ran 11% above the year-to-date monthly average of $109.8M.
Last updated: August 2026 dataMufflers and exhaust pipes for motor vehicles — including both complete assemblies and their component parts — are subject to Section 232 tariffs when originating from certain countries, a consideration that weighs heavily on aftermarket and OEM supply chains. The US schedule separates agricultural tractor applications (8708921000) from other vehicle uses (8708925000) and further distinguishes parts of mufflers (8708928000) from complete assemblies, requiring importers to assess both the vehicle type and the level of manufacture. Mexico and Canada dominate supply, reflecting deep integration with North American vehicle assembly platforms, while Germany and Japan supply premium and OEM-specification components.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
10.8K import shipments a month
CBP applies the essential character and commercial identity tests: a complete muffler or exhaust pipe presented ready for installation is classified under the assembly lines (8708921000 or 8708925000), while sub-components such as baffles, shells, or inlet/outlet tubes that are not themselves complete assemblies fall under 8708928000. Importers should document the component's function and stage of manufacture in the entry package to support the classification.
The tariff schedule maintains separate 10-digit lines for agricultural tractor mufflers (8708921000 and 8708926000) versus those for other vehicles (8708925000 and 8708927500). The practical significance is that agricultural tractor parts may have different Section 232 exposure and different USMCA content-calculation treatment than passenger car or light-truck exhaust systems. Importers should confirm the vehicle-type classification before filing, as misidentification between agricultural and non-agricultural lines is a common audit finding.
Subheading 12 of 15 in heading 8708
Subheading 870892 · $121.7M of $7.4B
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8708925000 | Mufflers and Exhaust Pipes for Vehicles, NESOI | $74.1M | 14.97% | 68.28% | $11.1M |
| 8708927500 | Parts, NESOI, of Mv, NESOI, Hds 8701-8705, of Muffler | $34.2M | 15.75% | 68.59% | $5.4M |
| 8708921000 | Mufflers and Exhaust Pipes for Tractors for Agr | $1.5M | 16.99% | 97.90% | $256K |
| 8708927000 | Cast Iron Parts of Motor Vehicles, 8701to8705 Muff | $450K | 25.50% | 98.01% | $115K |
| 8708926000 | Parts of Tractors for Agr Use:mufflers | $382K | 17.80% | 96.83% | $68K |
| 8708926500 | Parts of Tractors, NESOI, Ex for Agr Use: Mufflers | $228K | 28.06% | 100.00% | $64K |
Parts, NESOI, of Mv, NESOI, Hds 8701-8705, of Muffler
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8708925000 | Mufflers and Exhaust Pipes for Oth Vehicles, NESOI | $34.3M |
| 8708928000 | Parts and Acessories for Mufflers | $12.0M |
| 8708921000 | Mufflers and Exhaust Pipes for Tractors for Agr | $5.2M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Mexico and Germany together supply 50% of it. China pays 49.4% duty; South Africa 4.8%.
customs district
destination
entry
rate provision · imports
28.1% enters free of duty; duty collected equals 15.32% of imports for consumption.
ImportsExports
Imports
$121.7MYoY · free account
Exports
$51.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.3B of Mufflers and Exhaust Pipes for Motor Vehicles and exported $590.1M.
Through August 2026. Source: U.S. Census Bureau.