# United States tariff lines under HS 8607.21

> The United States tariff splits HS 8607.21 (brakes and parts thereof: Air brakes and parts thereof) into 2 national lines: 8607.21.10.00 (for vehicles of heading 8605 or 8606) and 8607.21.50.00 (other). The general (MFN) duty differs by line: 3.6% on 8607.21.10.00 and 3.9% on 8607.21.50.00.

Source: https://border.bot/countries/united-states/hs-codes/860721
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 86](https://border.bot/countries/united-states/hs-codes/86) / [8607.21](https://border.bot/countries/united-states/hs-codes/860721)

## Key facts

- HS subheading: [8607.21](https://border.bot/hs-codes/860721)
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 86: Railway or tramway locomotives, rolling-stock and parts thereof; railway or tramway track fixtures and fittings and parts thereof; mechanical (including electro-mechanical) traffic signalling equipment of all kinds

## United States lines under 8607.21

The United States tariff splits HS 8607.21 (brakes and parts thereof: Air brakes and parts thereof) into 2 national lines: 8607.21.10.00 (for vehicles of heading 8605 or 8606) and 8607.21.50.00 (other).

The general (MFN) duty differs by line: 3.6% on 8607.21.10.00 and 3.9% on 8607.21.50.00.

- [8607.21.10.00](https://border.bot/countries/united-states/hs-codes/8607211000) Brakes and parts thereof, Air brakes and parts thereof, For vehicles of heading 8605 or 8606. Duty (MFN): 3.6%
- [8607.21.50.00](https://border.bot/countries/united-states/hs-codes/8607215000) Brakes and parts thereof, Air brakes and parts thereof, Other. Duty (MFN): 3.9%

## In other countries

No other national tariff on border.bot has live lines under 8607.21 yet.

- [The Harmonized System text for 8607.21](https://border.bot/hs-codes/860721)

- Previous subheading: [8607.19](https://border.bot/countries/united-states/hs-codes/860719) Other, including parts
- Next subheading: [8607.29](https://border.bot/countries/united-states/hs-codes/860729) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8607.21?

The United States tariff splits HS 8607.21 (brakes and parts thereof: Air brakes and parts thereof) into 2 national lines: 8607.21.10.00 (for vehicles of heading 8605 or 8606) and 8607.21.50.00 (other).

### What is the duty on HS 8607.21 in the United States?

The general (MFN) duty differs by line: 3.6% on 8607.21.10.00 and 3.9% on 8607.21.50.00.

## 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/860721.json