Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8409.91.10.80Tariff line
Classification path
Parts suitable for use solely or principally with the engines of heading 8407 or 8408
8409
Other
Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines)
Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery
Other
8409.91.10.80
Rates of duty
General rate (Column 1)Free
Special—
Column 210%
Unitkg
Printed page 2745
Measure flags
for origin CN, entry date 2026-10-25 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 8409.91.10 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →