HTS 8408.20.20Compression-ignition internal combustion piston engines (diesel or semi-diesel engines):Engines of a kind used for the propulsion of vehicles of chapter 87: To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704

What that translates to:Car, truck and bus diesel engines

Also written 84082020 or 8408.20.2000. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Country of origin

Car, truck and bus diesel engines (HTS 8408.20.20) from China owe 52.5% in total duties as of Oct 1, 2026: a 2.5% regular duty plus a 25% auto and auto-parts tariff (Section 232) and a 25% China tariff (Section 301).

Total duty rate52.5%That's $5,250 on a $10,000 shipment.

Auto and auto-parts tariffSection 232, since May 3, 202525%

China tariffSection 301, since May 10, 201925%

Regular dutyBase rate (MFN) in the tariff schedule2.5%

Total duty52.5%

The auto and auto-parts tariff doesn't apply to “all entries of articles classifiable under provisions of the HTSUS enumerated in subdivision (g) of this note or meeting the requirements of subdivision (p) of this note … (ii) that are not parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks” (HTS 9903.94.06).

No forced-labor tariff here: products covered by the auto and auto-parts tariff (HTS 9903.94.05) are exempt from it.

Depending on the goods, the auto and auto-parts tariff (HTS 9903.94.05) or the truck and bus tariff (HTS 9903.74.08) applies, never both; the stack shows the auto and auto-parts tariff.

Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026); Commerce (International Trade Administration), Implementing Certain Tariff-Related Elements of the United States-Japan Agreement, 90 FR 44638, Sep 16, 2025; HTS 9903.94.05; USTR, Notice of Modification of Section 301 Action (List 3 raised to 25% from May 10, 2019), 84 FR 20459, May 9, 2019; HTS 9903.88.03.

Estimate your duty

Estimated duty—

Importing under HTS 8408.20.20? Talk to a licensed broker

Classification, filing, customs bonds and refund help. CBP publishes the brokers permitted at each port.

Find a licensed broker

Opens CBP's list of permitted customs brokers. We're not paid for this link.

Details for customs filings

Official description

Compression-ignition internal combustion piston engines (diesel or semi-diesel engines): Engines of a kind used for the propulsion of vehicles of chapter 87: To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

8408.20.2000 (8408202000)To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 · reported in No.

What changed for this code

Jul 24, 2026Forced-labor tariffs start on imports from 60 economies (Section 301)
Jul 22, 202625% Section 301 tariff on products of Brazil starts
May 1, 2026Taiwan's auto parts and some wood products get a 15% Section 232 rate
Jan 1, 2026Section 301 tariff on Nicaragua starts at 0%, set to rise to 10% in 2027 and 15% in 2028

Questions about HTS 8408.20.20

What is the duty rate for HTS 8408.20.20?

The regular (column 1 general) rate printed in the tariff schedule is 2.5%. Goods from China owe 52.5% in total as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 8408.20.20 subject to Section 301 tariffs?

Yes, for goods from 2 countries and territories as of Oct 1, 2026: China, Nicaragua. Choose a country above to see the rate and any exemptions.

Is HTS 8408.20.20 subject to Section 232 tariffs?

Yes, for goods from 207 countries and territories as of Oct 1, 2026, including Afghanistan, Åland Islands, Albania, Algeria, Andorra. Choose a country above to see the rate and any exemptions.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.