Heading 8408: Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)
Every line of heading 8408 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)
Chapter 84: Machinery, mechanical appliances, boilers and nuclear reactors. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 8408.10.00 | Marine propulsion engines | 2.5% |
| 8408.10.00.05 | Not exceeding 111.9 kW | |
| 8408.10.00.15 | Exceeding 111.9 kW but not exceeding 149.2 kW | |
| 8408.10.00.20 | Exceeding 149.2 kW but not exceeding 223.8 kW | |
| 8408.10.00.30 | Exceeding 223.8 kW but not exceeding 373 kW | |
| 8408.10.00.40 | Exceeding 373 kW but not exceeding 746 kW | |
| 8408.10.00.50 | Exceeding 746 kW | |
| 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 use | Free |
| 8408.20.10.40 | Not exceeding 37.3 kW | |
| 8408.20.10.80 | Exceeding 37.3 kW | |
| 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 | 2.5% |
| 8408.20.90.00 | Other | 2.5% |
| 8408.90 | Other engines: | |
| 8408.90.10 | To be installed in agricultural or horticultural machinery or equipment | Free |
| 8408.90.10.40 | Not exceeding 37.3 kW | |
| 8408.90.10.80 | Exceeding 37.3 kW | |
| 8408.90.90 | Other | Free |
| 8408.90.90.10 | Not exceeding 149.2 kW | |
| 8408.90.90.20 | Exceeding 149.2 kW but not exceeding 373 kW | |
| 8408.90.90.30 | Exceeding 373 kW but not exceeding 746 kW | |
| 8408.90.90.40 | Exceeding 746 kW but not exceeding 1,119 kW | |
| 8408.90.90.50 | Exceeding 1,119 kW |
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Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 8408 has 13 of them; the first 12 are below. Schedule B lookup →
- 8408.10.0010COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL), NOT EXCEEDING 149.2 KW (200 HP), FOR MARINE PROPULSION
- 8408.10.0020COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR MARINE PROPULSION, EXCEEDING 149.2 KW BUT NOT EXCEEDING 223.8 KW
- 8408.10.0030COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR MARINE PROPULSION, EXCEEDING 223.8 KW BUT NOT EXCEEDING 373 KW
- 8408.10.0040COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR MARINE PROPULSION, EXCEEDING 373 KW BUT NOT EXCEEDING 746 KW
- 8408.10.0050COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR MARINE PROPULSION, EXCEEDING 746 KW
- 8408.20.2000COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR PROPULSION OF VEHICLES OF CHAPTER 87, TO BE INSTALLED IN ROAD TRACTORS,BUSES,AUTOS,TRUCKS
- 8408.20.5000COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL), FOR THE PROPULSION OF VEHICLES OF CHAPTER 87, NESOI
- 8408.90.1000COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL), TO BE INSTALLED IN AGRICULTURAL OR HORTICULTURAL MACHINERY OR EQUIPMENT
- 8408.90.9010COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES,NESOI,NOT EXCEEDING 149.2 KW
- 8408.90.9020COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES,NESOI,EXCEEDING 149.2 KW BUT NOT EXCEEDING 373 KW
- 8408.90.9030COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES,NESOI,EXCEEDING 373 KW NOT EXCEEDING 746 KW
- 8408.90.9040COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES,NESOI,EXCEEDING 746 KW BUT NOT EXCEEDING 1,119 KW
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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