Heading 8409: Parts suitable for use solely or principally with the engines of heading 8407 or 8408
In chapter 84, Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. 10 rate lines, laid out as HTS Revision 20 (2026) prints them.
| HTS number | Description | Units | General | Special | Column 2 |
|---|---|---|---|---|---|
| 8409 | Parts suitable for use solely or principally with the engines of heading 8407 or 8408: | ||||
| 8409.10.00 | For aircraft engines | Free | 35% | ||
| 8409.10.00.40 | For use in civil aircraft | kg | |||
| 8409.10.00.80 | Other | kg | |||
| Other: | |||||
| 8409.91 | Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines): | ||||
| 8409.91.10 | 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 | Free | 10% | ||
| 8409.91.10.40 | For vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | kg | |||
| 8409.91.10.60 | For marine propulsion engines | kg | |||
| 8409.91.10.80 | Other | kg | |||
| Other: | |||||
| To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704: | |||||
| 8409.91.30.00 | Aluminum cylinder heads | No., kg | 2.5% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |
| 8409.91.50 | Other | 2.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8409.91.50.10 | Connecting rods | No., kg | |||
| 8409.91.50.81 | Steel forgings | kg | |||
| 8409.91.50.85 | Other | kg, No. | |||
| 8409.91.92 | For marine propulsion engines | 2.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8409.91.92.10 | Connecting rods | No., kg | |||
| 8409.91.92.90 | Other | kg | |||
| 8409.91.99 | Other | 2.5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8409.91.99.10 | Connecting rods | No., kg | |||
| 8409.91.99.90 | Other | kg | |||
| 8409.99 | Other: | ||||
| 8409.99.10 | 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 | Free | 10% | ||
| 8409.99.10.40 | For vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | kg | |||
| 8409.99.10.60 | For marine propulsion engines | kg | |||
| 8409.99.10.80 | Other | kg | |||
| Other: | |||||
| 8409.99.91 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | 2.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8409.99.91.10 | Connecting rods | No., kg | |||
| 8409.99.91.90 | Other | kg, No. | |||
| 8409.99.92 | For marine propulsion engines | 2.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8409.99.92.10 | Connecting rods | No., kg | |||
| 8409.99.92.90 | Other | kg | |||
| 8409.99.99 | Other | Free | 35% | ||
| 8409.99.99.10 | Connecting rods | No., kg | |||
| 8409.99.99.90 | Other | kg |
Rates are quoted as printed. Each 8-digit number opens its own page with footnotes and cited chapter 99 headings.
Watch lines in heading 8409
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What this page leaves to your broker
This page quotes the schedule. It does not add the rates together, and it does not say whether a chapter 99 heading applies to a shipment: that turns on the country of origin, the dates and the U.S. notes to chapter 99. Section 301, Section 232 and other chapter 99 measures list the goods they cover in those notes and in Federal Register notices, so a line can be covered by a heading its footnotes never cite. A licensed customs broker makes the determination.
Built September 29, 2026 from HTS Revision 20 (2026) (USITC release 2026HTSRev20, published September 23, 2026, current since September 28, 2026). The schedule changes often; USITC's own site always has the current text.