Japan supplies 45.8% of U.S. imports of Spark-Ignition Reciprocating Piston Engines for Vehicles, across 19 countries (year to date through September 2026).
HHI 4,139 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
19 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Japan | $21.9M | 47.5% | -7.0% | 8.2% |
| 2 | Mexico | $20.6M | 44.7% | +39.5% | 1.6% |
| 3 | China | $2.0M | 4.4% | +50.4% | 48.2% |
| 4 | Romania | $1.1M | 2.4% | +15.3% | 2.5% |
| 5 | Indonesia | $118K | 0.3% | -58.1% | 10.0% |
| 6 | Thailand | $78K | 0.2% | +21.0% | 12.5% |
| 7 | Austria | $60K | 0.1% | -44.7% | 10.0% |
| 8 | Italy | $50K | 0.1% | +30.3% | 10.3% |
| 9 | Germany | $47K | 0.1% | +4.6% | 13.0% |
| 10 | India | $44K | 0.1% | +939.8% | 10.0% |
| 11 | Canada | $23K | 0.1% | -24.6% | 0.0% |
| 12 | Taiwan | $14K | <0.1% | +54.9% | 10.0% |
| 13 | Australia | $12K | <0.1% | -- | 12.5% |
| 14 | Vietnam | $7K | <0.1% | +23335.0% | 12.5% |
| 15 | United Kingdom | $6K | <0.1% | +923.2% | 10.0% |
| 16 | Turkey | -- | 0.0% | -- | -- |
| 17 | South Korea | -- | 0.0% | -- | -- |
| 18 | France | -- | 0.0% | -- | -- |
| 19 | Netherlands | -- | 0.0% | -15.7% | -- |
Duty is the duty Census calculated on this month's imports for consumption from each country, as a share of their customs value. It applies the rates in force, additional duties such as Section 301, 232 and IEEPA included and claimed trade-agreement preferences netted out, so it is an observed rate rather than a statutory one. It is an estimate, not duty collected: antidumping and countervailing duties, fees and later refunds are not in it. YoY compares year-to-date value with the same months last year.