What is the duty rate for HTS 8409.99.91?

The general duty rate for HTS 8409.99.91 is 2.5%. Special rates: Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG). This code covers: To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704.

HTS 8409.99.91Chapter 84

HTS 8409.99.91 — To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 Duty Rate & Import Guide

Nuclear Reactors, Boilers, Machinery · 1 pending regulation · $281.8M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

2.5%

Special

Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

Column 2

35%

Preferential Rates Available

Trade Agreement Eligibility

CUSMAKORUS

Notes

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Trade Intelligence

Monthly Imports

$281.8M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

LOW

5 rulings — · 1 reg · 0 cases

Global Rates

🇺🇸 2.5%

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 17 NCM codes

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Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, Federal Register, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Active DisputesRecent court cases or pending regulations affect this code

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

High-Volume Code

This is a high-volume import code — $282M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.

Trade Remedy

Additional Tariffs Apply

Section 301 — China Tariffs+25%

List 1 — ~$34B of Chinese goods (machinery, electronics, industrial components)

Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.

Effective 2018-07-06

These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →

Subheadings (3)

Code	Description	Rate
8409.99.91	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%
8409.99.91.10	Connecting rods	—
8409.99.91.90	Other	—

CBP Rulings (5)

951286Classification

Pistons; Diesel Engines; Compression-Ignition Internal Combustion; Motor Vehicles; Construction; Agriculture; Marine; Transport Of Persons; Goods; 8409.99.99

953763Classification

Connecting Rods; engine parts; HQ 951286; EN 72.07(B)

955021Classification

Protest No. 1401-92-100203; Connecting Rods; Engine Parts; Section XVI, Note 2(b); HQ 953763

951990Classification

Revocation of NY 859968; Diesel Engine Cylinder Heads; 8409.99.99

951154Classification

Cylinder Block Casting; Diesel Engine Block; Engine Block Casting; Rough Gray Iron Casting; Parts of Internal Combustion Diesel Engines; Subheading 8409.99.10; Advancement Beyond Cleaning; Stress Relieving; Other Parts; Subheading 8409.99.99

Federal Register (1)

Notice2018-15090

2018-07-17

Request for Comments Concerning Proposed Modification of Action Pursuant to Section 301: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation

Request for comments and notice of public hearing.

Matching Export Code (Schedule B)

8409994000Schedule B

PARTS FOR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL) FOR USE IN ROAD TRACTORS, MOTOR BUSES, AUTOMOBILES OR TRUCKS

Census Bureau export classification matching this HTS import code.

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