Generating sets with spark-ignition internal combustion piston engines

US trade by year

US imports were $1.79B in the 12 months to Aug 2026, up 177% on the 12 months to Aug 2017. US exports were $290.6M, up 62%. In January 2022 the HS 2022 revision moved some goods between this code and 8549.21, 8549.29, 8549.31 and 3 more, so part of a change across the dashed line can be the revision. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Vietnam
• Austria
• Finland
• United Kingdom
• All countries

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

The 3 largest suppliers had 74.4% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

• Price
• Freight and insurance
• Duty

Landed at a US port, Vietnam was cheapest, at $457.32 each: 96.7% below Austria.

Landed cost from United Kingdom rose 211% on a year earlier, to $873,219 each, mostly on price: $244,811 each then, $711,380 each now.

How the market is shifting

Austria gained the most share: 30.9% of US imports over the last 12 months, up from 14.7% in the 12 months before. Vietnam lost the most: 31.2%, down from 53.4%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Vietnam
• Austria
• Finland
• United Kingdom
• All countries

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

1. December 2025–May 2026 · Duty paid: Vietnam 23.5% → 13.6%, Austria 6.9% → 1.5%, Thailand 9.3% → 27.4%, China 59.6% → 44.3%, Japan 12.8% → 26.0%, all countries 16.3% → 8.5%.
   • Implementing Certain Tariff-Related Elements of a Trade and Security Agreement Between the American Institute in Taiwan and the Taipei Economic and Cultural Representative Office in the United StatesMay 28, 2026 · Office of the US Trade Representative
   • Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal TradeDec 18, 2025 · International Trade Administration
   • Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment DealDec 4, 2025 · International Trade Administration
2. September 2025 · Duty paid: Vietnam 12.0% → 23.5%.
   • Implementing Certain Tariff-Related Elements of the U.S.-EU Framework on an Agreement on Reciprocal, Fair, and Balanced TradeSep 25, 2025 · Office of the US Trade Representative
   • Implementing Certain Tariff-Related Elements of the United States-Japan AgreementSep 16, 2025 · International Trade Administration
   • Adoption and Procedures of the Section 232 Steel and Aluminum Tariff Inclusions ProcessAug 19, 2025 · Bureau of Industry and Security
3. April–June 2025 · Duty paid: Vietnam 2.0% → 10.6%, Austria 2.0% → 8.5%, Thailand 2.0% → 10.8%, China 27.1% → 54.9%, Japan 2.0% → 12.0%, all countries 9.4% → 16.8%.
   • Imports of Automobiles, Automobile Parts, Civil Aircraft and Civil Aircraft Parts From the United Kingdom Under Executive Order 14309Jun 30, 2025 · International Trade Administration
4. February 2024 · Duty paid: all countries 12.0% → 6.9%.
5. June 2022 · Duty paid: all countries 14.8% → 8.8%.
6. June 2019 · Duty paid: China 12.0% → 26.8%, all countries 8.7% → 16.2%.
7. September–October 2018 · Duty paid: China 2.0% → 12.0%, all countries 2.0% → 9.1%.
   • Request for Comments Concerning Proposed Modification of Action Pursuant to Section 301: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and InnovationJul 17, 2018 · Office of the US Trade Representative

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 8502.20

• Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal DeforestationJul 20, 2026 · Office of the US Trade Representative
• Notice of Determination and Request for Comments Concerning Action Pursuant to Section 301: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal DeforestationJun 4, 2026 · Office of the US Trade Representative
• Implementing Certain Tariff-Related Elements of a Trade and Security Agreement Between the American Institute in Taiwan and the Taipei Economic and Cultural Representative Office in the United StatesMay 28, 2026 · Office of the US Trade Representative
• Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal TradeDec 18, 2025 · International Trade Administration
• Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment DealDec 4, 2025 · International Trade Administration

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 123 have reported 2025 so far.

The biggest market outside the US is Ukraine, which imported $407.8M of this product in 2024, 0.7% of that from the US.

The US supplies 61.5% of imports into Canada, but under 10% into Ukraine, Germany and Italy.

Of these, imports into Turkey grew fastest: up 166% from 2024 to 2025.

Related products

Other products under heading 8502: electric generating sets and rotary converters. US trade over the 12 months to August 2026.