Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
HTS heading 8408: Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)
24 numbered lines under heading 8408, including 17 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.
| HTS code | Description | Unit | General | Special | Column 2 |
|---|---|---|---|---|---|
| 8408 | Compression-ignition internal combustion piston engines (diesel or semi-diesel engines): | ||||
| 8408.10.00 | Marine propulsion engines | 2.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | |
| 8408.10.00.05 | Not exceeding 111.9 kW | No. | |||
| 8408.10.00.15 | Exceeding 111.9 kW but not exceeding 149.2 kW | No. | |||
| 8408.10.00.20 | Exceeding 149.2 kW but not exceeding 223.8 kW | No. | |||
| 8408.10.00.30 | Exceeding 223.8 kW but not exceeding 373 kW | No. | |||
| 8408.10.00.40 | Exceeding 373 kW but not exceeding 746 kW | No. | |||
| 8408.10.00.50 | Exceeding 746 kW | No. | |||
| 8408.20 | Engines of a kind used for the propulsion of vehicles of chapter 87: | ||||
| 8408.20.10 | To be installed in tractors suitable for agricultural useNote: See 9903.90.08. | Free | Free | ||
| 8408.20.10.40 | Not exceeding 37.3 kW | No. | |||
| 8408.20.10.80 | Exceeding 37.3 kW | No. | |||
| 8408.20.20.00 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | No. | 2.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |
| 8408.20.90.00 | Other | No. | 2.5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |
| 8408.90 | Other engines: | ||||
| 8408.90.10 | To be installed in agricultural or horticultural machinery or equipmentNote: See 9903.90.08. | Free | Free | ||
| 8408.90.10.40 | Not exceeding 37.3 kW | No. | |||
| 8408.90.10.80 | Exceeding 37.3 kW | No. | |||
| 8408.90.90 | Other | Free | 35% | ||
| 8408.90.90.10 | Not exceeding 149.2 kW | No. | |||
| 8408.90.90.20 | Exceeding 149.2 kW but not exceeding 373 kW | No. | |||
| 8408.90.90.30 | Exceeding 373 kW but not exceeding 746 kW | No. | |||
| 8408.90.90.40 | Exceeding 746 kW but not exceeding 1,119 kW | No. | |||
| 8408.90.90.50 | Exceeding 1,119 kW | No. |
Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.
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Request a free auditSource: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.