8407.31.00

Of a cylinder capacity not exceeding 50 cc

Spark-ignition reciprocating or rotary internal combustion piston engines: Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87

Heading: 8407 Chapter: 84 As of June 9, 2026

Duty rates

Column 1 (General / MFN)

Free

Column 2 (Non-NTR)

35%

The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.

Trade measures (Chapter 99)

9903.03.01

The duty provided in the applicable subheading + 10%

Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.02

The duty provided in the applicable subheading

Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026

Effective from February 24, 2026 through July 24, 2026

9903.03.03

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.04

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.05

The duty provided in the applicable subheading

Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.06

The duty provided in the applicable subheading

Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.07

The duty provided in the applicable subheading

Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter

Applies to origin: CA

Effective from February 24, 2026 through July 24, 2026

9903.03.08

The duty provided in the applicable subheading

Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter

Applies to origin: MX

Effective from February 24, 2026 through July 24, 2026

9903.03.09

The duty provided in the applicable subheading

Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter

Applies to origin: CR, SV, GT, HN, NI, DO

Effective from February 24, 2026 through July 24, 2026

9903.03.10

The duty provided in the applicable subheading

Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering

Effective from February 24, 2026 through July 24, 2026

9903.03.11

The duty provided in the applicable subheading

Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds

Applies to origin: IL

Effective from February 24, 2026 through July 24, 2026

9903.94.05

The duty provided in the applicable subheading + 25%

Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter

Effective from January 1, 2025

9903.94.32

10%

Effective with respect to entries on or after June 30, 2025, parts of passenger vehicles and light trucks of the United Kingdom, classified in the subheadings enumerated in subdivision (j) of U.S. note 33 to this subchapter.

Applies to origin: GB

Effective from January 1, 2025

9903.94.33

10%

Automobile parts the product of the United Kingdom as provided for in subdivision (q) of U.S. note 33 to this subchapter.

Applies to origin: GB

Effective from February 25, 2026

9903.94.42

15.0%

Parts of passenger vehicles and light trucks that are products of Japan as provided for subdivision (l) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 equal to or greater than 15 percent as provided for in subdivision (m) of U.S. note 33 to this subchapter.

Applies to origin: JP

Effective from January 1, 2025

9903.94.43

15.0%

Parts of passenger vehicles and light trucks that are products of Japan as provided for in subdivision (l) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent as provided for in subdivision (m) of U.S. note 33 to this subchapter.

Applies to origin: JP

Effective from January 1, 2025

9903.94.44

15.0%

Automobile parts the product of the European Union with an ad valorem (or ad valorem equivalent) rate of duty under column 1 equal to or greater than 15 percent, as provided for in subdivision (r) of U.S. note 33 to this subchapter.

Applies to origin: EU

Effective from February 25, 2026

9903.94.45

15.0%

Automobile parts the product of the European Union with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (r) of U.S. note 33 to this subchapter.

Applies to origin: EU

Effective from February 25, 2026

9903.94.52

15.0%

Parts of passenger vehicles and light trucks that are products of the European Union as specified in subdivision (o) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column 1 equal to or greater than 15 percent.

Applies to origin: EU

Effective from January 1, 2025

9903.94.53

15.0%

Parts of passenger vehicles and light trucks that are products of the European Union as specified in subdivision (o) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column1 less than 15 percent.

Applies to origin: EU

Effective from January 1, 2025

9903.94.54

15.0%

Automobile parts the product of Japan with an ad valorem (or ad valorem equivalent) rate of duty under column 1 equal to or greater than 15 percent, as provided for in subdivision (r) of U.S. note 33 to this subchapter.

Applies to origin: JP

Effective from February 25, 2026

9903.94.55

15.0%

Automobile parts the product of Japan with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (r) of U.S. note 33 to this subchapter.

Applies to origin: JP

Effective from February 25, 2026

9903.94.62

15.0%

Parts of passenger vehicles and light trucks that are products of South Korea as specified in subdivisions (g) and (t) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column 1-General or column 1-Special equal to or greater than 15 percent

Applies to origin: KR

Effective from November 1, 2025

9903.94.63

15.0%

Parts of passenger vehicles and light trucks that are products of South Korea as specified in subdivisions (g) and (t) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column 1-General or column 1-Special less than 15 percent

Applies to origin: KR

Effective from November 1, 2025

9903.94.64

15.0%

Parts of passenger vehicles and light trucks that are products of South Korea as specified in subdivisions (r) and (t) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column 1-General or column 1-Special equal to or greater than 15 percent

Applies to origin: KR

Effective from November 1, 2025

9903.94.65

15.0%

Parts of passenger vehicles and light trucks that are products of South Korea as specified in subdivisions (r) and (t) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent as provided for in subdivision (m) of U.S. note 33 to this subchapter) rate of duty under column 1-General or column 1-Special less than 15 percent

Applies to origin: KR

Effective from November 1, 2025

9903.88.03

LIST_1

The duty provided in the applicable subheading + 25%

Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Applies to origin: CN

Effective from August 23, 2018

Related CBP rulings

H351139 March 3, 2026

USMCA Fungible Goods and Materials; RVC Averaging; Automotive Engines

The merchandise at issue consists of various automotive engines that your client, Hyundai Mobis Mexico S. de R.L. de C.V., will manufacture in Mexico using originating and non-originating fungible materials. You state that the goods are cla

H342177 November 26, 2024

USMCA Eligibility; Used Automotive Parts; Disassembly

that you reassert in the instant matter. In Headquarters Ruling Letter (“HQ”) H004446, dated April 11, 2007, we issued a decision regarding the eligibility of used auto parts for preferential tariff treatment under the North American Free T

N333600 July 6, 2023

The tariff classification of an outboard motor from China

Pictures and other descriptive literature was submitted with your request. The article under consideration is a Yadao T4.0 water cooled, 2-stroke, 4 horsepower (hp) Outboard Motor, which is principally used with small vessels. The maximum o

H312432 March 24, 2021

Country of origin; Gasoline-powered horizontal shaft engine; Section 301 trade remedy; 9903.88.02, HTSUS

The subject merchandise is a gasoline-powered, carbureted or fuel injected, horizontal shaft engine for a snow thrower classifiable under subheading 8407.90.90, HTSUS. The engine is made from component parts all sourced from China that inc

H312790 February 17, 2021

Country of Origin; Marine propulsion outboard engine; Section 301 trade remedy; 9903.88.01, HTSUS

The merchandise at issue is described as a four-stroke marine propulsion outboard engine ranging from 40 to 60 horsepower classifiable in subheading 8407.21.00, Harmonized Tariff Schedule of the United States (“HTSUS”). The outboard engine

N305729 September 4, 2019

The tariff classification of engines for chipper shredder vacuums from China

00.60, Harmonized Tariff Schedule of the United States (HTSUS). The items under consideration have been identified as Engines (Model numbers 752Z1X65CUA and 752Z1X65CUB), which are designed to be used with Walk-Behind Chipper Shredder Vacuu

N305139 August 1, 2019

The tariff classification of lawn mower engines from China

00.60, Harmonized Tariff Schedule of the United States (HTSUS). The items under review are fifty two (52) models of lawn mower engines of a cylinder capacity ranging from 79 cubic centimeters (cc) to 679 (cc). You describe the products as s

N305231 July 18, 2019

The tariff classification of a competition sidecar and parts from the United Kingdom

The items under consideration have been identified as an Ireson Honda 2009 road racing competition sidecar, spare engine, and parts.

N302518 February 19, 2019

The tariff classification of a long block from Japan.

The item under consideration has been identified as a Long Block, which is a component of a spark-ignition reciprocating internal combustion piston engine with a displacements of 653 cubic centimeters (cc) and an output of 20.5 to 22 horsep

N302189 February 8, 2019

The tariff classification of engine assemblies from China

The items under consideration are Engine Assemblies for spark-ignition reciprocating internal combustion piston engines, model numbers A-32, A-42, A-62, and A-160, used in oil and gas field pumping, and auxiliary power applications.

H295146 May 7, 2018

Ruling Request; NAFTA; Regional Value Content; 19 CFR, Part 181 App. Section 13(2) – Motor Vehicles Produced in a New Plant

According to your submission, the importer plans to introduce a new line of automobiles to the U.S. market in the near future. The importer’s affiliate in Mexico has already begun construction of the plant where this new line of vehicles wi

N293418 February 1, 2018

The tariff classification of a cylinder head assembly from Japan.

The items under consideration have been identified a Short Block and Cylinder Head Assembly, which are used in a 1,500 cubic centimeters (cc) gasoline variable compression rate turbo charger engine for midsized sedan automobiles. You descri

Other codes in heading 8407

View all codes in heading 8407 →

Duty by origin country

The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 8407.31.00 from each major US trading partner.

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