U.S. imports of Industrial Engines (End-Use 21100) totaled $3.3B in August 2026, imported from 133 countries.
Importers of Industrial Engines paid $415.2M in duties in August 2026, an average duty rate of 12.58% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataImported industrial engines serve as critical inputs for US equipment assemblers, power-generation integrators, and aftermarket service providers. Diesel engines in the mid-to-high horsepower range dominate import volumes, with fuel type and rated output driving both HTS classification and applicable duty treatment. Certain imported engine lines — particularly those originating from countries subject to Section 301 measures — carry additional tariff exposure that procurement teams must factor into landed-cost calculations.
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129.3K import shipments a month
End-Use codes describe different products on the import and export sides. Cross-direction exports are not shown for this slug.
Diesel compression-ignition engines and spark-ignition gasoline or gas engines are classified under different HTS headings, and duty rates can differ between them. Importers should confirm the engine's operating cycle and fuel type with the manufacturer to ensure the correct subheading is declared on entry documents.
Standard commercial invoice, packing list, and bill of lading are required. For engines subject to EPA emission standards, an EPA Form 3520-1 or equivalent conformance declaration may be required at entry. Importers should also verify whether the engine's origin triggers any Section 301 additional duties.
Commodity 9 of 32 in category 2
Commodity 21100 · $3.3B of $146.7B
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Imports · August 2026
origin
China pays 38.8% duty; Mexico 3.6%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
Imports
Imports
$3.3BYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $35.0B of Industrial Engines.
Through August 2026. Source: U.S. Census Bureau.