# United States tariff lines under HS 8408.90

> The United States tariff splits HS 8408.90 (other engines) into 7 national lines: 8408.90.10.40 (not exceeding 37.3 kW), 8408.90.10.80 (exceeding 37.3 kW), 8408.90.90.10 (not exceeding 149.2 kW), 8408.90.90.20 (exceeding 149.2 kW but not exceeding 373 kW) and 3 others. Every United States line under 8408.90 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/840890
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 84](https://border.bot/countries/united-states/hs-codes/84) / [8408.90](https://border.bot/countries/united-states/hs-codes/840890)

## Key facts

- HS subheading: [8408.90](https://border.bot/hs-codes/840890)
- Duty (MFN): Free
- National lines: 7
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8408.90

The United States tariff splits HS 8408.90 (other engines) into 7 national lines: 8408.90.10.40 (not exceeding 37.3 kW), 8408.90.10.80 (exceeding 37.3 kW), 8408.90.90.10 (not exceeding 149.2 kW), 8408.90.90.20 (exceeding 149.2 kW but not exceeding 373 kW) and 3 others.

Every United States line under 8408.90 is free of general (MFN) duty.

- [8408.90.10.40](https://border.bot/countries/united-states/hs-codes/8408901040) Other engines, To be installed in agricultural or horticultural machinery or equipment, Not exceeding 37.3 kW. Duty (MFN): free
- [8408.90.10.80](https://border.bot/countries/united-states/hs-codes/8408901080) Other engines, To be installed in agricultural or horticultural machinery or equipment, Exceeding 37.3 kW. Duty (MFN): free
- [8408.90.90.10](https://border.bot/countries/united-states/hs-codes/8408909010) Other engines, Other, Not exceeding 149.2 kW. Duty (MFN): free
- [8408.90.90.20](https://border.bot/countries/united-states/hs-codes/8408909020) Other engines, Other, Exceeding 149.2 kW but not exceeding 373 kW. Duty (MFN): free
- [8408.90.90.30](https://border.bot/countries/united-states/hs-codes/8408909030) Other engines, Other, Exceeding 373 kW but not exceeding 746 kW. Duty (MFN): free
- [8408.90.90.40](https://border.bot/countries/united-states/hs-codes/8408909040) Other engines, Other, Exceeding 746 kW but not exceeding 1,119 kW. Duty (MFN): free
- [8408.90.90.50](https://border.bot/countries/united-states/hs-codes/8408909050) Other engines, Other, Exceeding 1,119 kW. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 8408.90 yet.

- [The Harmonized System text for 8408.90](https://border.bot/hs-codes/840890)

- Previous subheading: [8408.20](https://border.bot/countries/united-states/hs-codes/840820) Engines of a kind used for the propulsion of vehicles of chapter 87
- Next subheading: [8409.10](https://border.bot/countries/united-states/hs-codes/840910) Parts suitable for use solely or principally with the engines of heading 8407 or 8408

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8408.90?

The United States tariff splits HS 8408.90 (other engines) into 7 national lines: 8408.90.10.40 (not exceeding 37.3 kW), 8408.90.10.80 (exceeding 37.3 kW), 8408.90.90.10 (not exceeding 149.2 kW), 8408.90.90.20 (exceeding 149.2 kW but not exceeding 373 kW) and 3 others.

### What is the duty on HS 8408.90 in the United States?

Every United States line under 8408.90 is free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/840890.json