Mexico supplies 42.2% of U.S. imports of Parts for Spark-Ignition Internal Combustion Piston Engines…, across 71 countries (year to date through August 2026).
HHI 2,358 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
71 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Mexico | $302.7M | 43.7% | +8.3% | 0.6% |
| 2 | Japan | $129.0M | 18.6% | -2.3% | 6.1% |
| 3 | China | $65.4M | 9.4% | -2.3% | 34.5% |
| 4 | Canada | $61.6M | 8.9% | +22.5% | 0.3% |
| 5 | South Korea | $37.7M | 5.5% | -5.5% | 11.4% |
| 6 | Germany | $24.6M | 3.6% | +10.0% | 7.4% |
| 7 | Thailand | $10.0M | 1.5% | +40.3% | 11.2% |
| 8 | Brazil | $6.5M | 0.9% | +1.4% | 30.3% |
| 9 | India | $6.2M | 0.9% | -17.7% | 11.8% |
| 10 | Taiwan | $5.2M | 0.8% | -2.9% | 10.6% |
| 11 | Philippines | $4.8M | 0.7% | +3.4% | 12.5% |
| 12 | Poland | $4.7M | 0.7% | +66.5% | 8.2% |
| 13 | United Kingdom | $4.6M | 0.7% | +15.0% | 8.0% |
| 14 | Austria | $4.5M | 0.6% | +10.4% | 9.2% |
| 15 | Italy | $4.3M | 0.6% | +2.7% | 9.1% |
| 16 | Spain | $3.2M | 0.5% | +16.8% | 3.3% |
| 17 | Vietnam | $2.7M | 0.4% | +369.1% | 15.5% |
| 18 | Turkey | $2.5M | 0.4% | +8.5% | 7.1% |
| 19 | Argentina | $1.8M | 0.3% | +46.9% | 10.3% |
| 20 | France | $1.8M | 0.3% | +424.3% | 8.6% |
| 21 | Indonesia | $1.6M | 0.2% | +4.4% | 12.5% |
| 22 | Czech Republic | $1.5M | 0.2% | +26.7% | 5.0% |
| 23 | Slovakia | $885K | 0.1% | +84.5% | 4.2% |
| 24 | Hungary | $777K | 0.1% | +110.6% | 6.3% |
| 25 | Romania | $747K | 0.1% | -7.6% | 12.4% |
| 26 | Australia | hidden | hidden | hidden | hidden |
| 27 | Sweden | hidden | hidden | hidden | hidden |
| 28 | Switzerland | hidden | hidden | hidden | hidden |
| 29 | Serbia | hidden | hidden | hidden | hidden |
| 30 | South Africa | hidden | hidden | hidden | hidden |
| 31 | New Zealand | hidden | hidden | hidden | hidden |
| 32 | Netherlands | hidden | hidden | hidden | hidden |
| 33 | Costa Rica | hidden | hidden | hidden | hidden |
| 34 | Denmark | hidden | hidden | hidden | hidden |
| 35 | Slovenia | hidden | hidden | hidden | hidden |
| 36 | Tunisia | hidden | hidden | hidden | hidden |
| 37 | Finland | hidden | hidden | hidden | hidden |
| 38 | Portugal | hidden | hidden | hidden | hidden |
| 39 | United Arab Emirates | hidden | hidden | hidden | hidden |
| 40 | Singapore | hidden | hidden | hidden | hidden |
| 41 | Egypt | hidden | hidden | hidden | hidden |
| 42 | Bulgaria | hidden | hidden | hidden | hidden |
| 43 | Morocco | hidden | hidden | hidden | hidden |
| 44 | Malaysia | hidden | hidden | hidden | hidden |
| 45 | Belgium | hidden | hidden | hidden | hidden |
| 46 | Ireland | hidden | hidden | hidden | hidden |
| 47 | Greece | hidden | hidden | hidden | hidden |
| 48 | Estonia | hidden | hidden | hidden | hidden |
| 49 | Peru | hidden | hidden | hidden | hidden |
| 50 | Bermuda | hidden | hidden | hidden | hidden |
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.