8408.90
6-digit headingOther engines
This is a 6-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Where this sits in the schedule
The tariff schedule is read top-down: each line inherits the wording of the categories above it.
Compression-ignition internal combustion piston engines (diesel or semi-diesel engines):
Codes within Other engines
9 more specific lines fall under 8408.90.
- 8408.90.10To be installed in agricultural or horticultural machinery or equipment8-digit subheadingCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines:Free
- 8408.90.10.40Not exceeding 37.3 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > To be installed in agricultural or horticultural machinery or equipment
- 8408.90.10.80Exceeding 37.3 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > To be installed in agricultural or horticultural machinery or equipment
- 8408.90.90Other8-digit subheadingCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines:Free
- 8408.90.90.10Not exceeding 149.2 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > Other
- 8408.90.90.20Exceeding 149.2 kW but not exceeding 373 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > Other
- 8408.90.90.30Exceeding 373 kW but not exceeding 746 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > Other
- 8408.90.90.40Exceeding 746 kW but not exceeding 1,119 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > Other
- 8408.90.90.50Exceeding 1,119 kW10-digit statistical codeCompression-ignition internal combustion piston engines (diesel or semi-diesel engines): > Other engines: > Other
Chapter 84: Machinery and Mechanical Appliances; Parts Thereof
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 84Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built