U.S. imports of Electric Generating Sets with Internal Combustion Piston Engines (SITC 71651) totaled $448.0M in August 2026, imported from 34 countries.
Importers of Electric Generating Sets with Internal Combustion Piston Engines paid $24.0M in duties in August 2026, an average duty rate of 5.37% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Electric Generating Sets with Internal Combustion Piston Engines imports of $448.0M in August 2026 ran 76% above the year-to-date monthly average of $255.1M.
Last updated: August 2026 dataGensets pairing an alternator with a reciprocating internal combustion engine — whether spark-ignition (gasoline/gas) or compression-ignition (diesel) — are classified here, with engine type and output rating being the primary commercial and regulatory differentiators. These units serve as standby power for data centers, hospitals, and construction sites, as well as prime power in off-grid applications. Engine displacement and emissions compliance (EPA Tier standards) are critical specification checkpoints for US importers, and several source countries' products have been subject to Section 301 tariff scrutiny.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.6K import shipments a month
Yes. The US EPA regulates stationary and portable engine emissions under its nonroad and stationary engine rules. Imported gensets must meet the applicable Tier standard for their engine displacement and intended use category before they can be sold or operated in the US; some states (notably California) impose additional CARB requirements.
The type of prime mover (spark-ignition vs. compression-ignition) and the output rating in kVA or kW are the primary classification drivers within this heading. Importers should ensure technical documentation — engine type, rated output, and whether the unit is self-contained — accompanies the entry to support correct classification and avoid reclassification at the port.
Basic heading 48 of 642 in section 7
Basic heading 71651 · $448.0M of $172.0B
Imports · August 2026
origin
Finland and Austria together supply 58% of it. Vietnam pays 14.6% duty; Finland 0.0%.
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.
ImportsExports
Imports
$448.0MYoY · free account
Exports
$132.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.8B of Electric Generating Sets with Internal Combustion Piston Engines.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.
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