US tariff data as of 2026-10-09Tariffs dataset 1.0.0Entry dates 2025-01-01 to 2026-10-09
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Chapter 84 · HTS release 2026HTSRev21

HTS 8408 Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)

Base rates and the additional US duties for imports from the main origins on entry date 2026-10-09, from the HTS Calculator duty engine.

Base rate (column 1 general)
Free to 2.5%
Additional duty, main origins
0–50%
Statistical lines
17
Entry date shown
2026-10-09 (dataset 1.0.0)

Additional duties for the main origins

Additional duties on 2026-10-09
OriginAdditional dutyMeasures
China37.5–50%Section 232, Section 301
Mexico0–25%Section 232, Section 301
Canada0–25%Section 232, Section 301
Vietnam12.5–25%Section 232, Section 301
Germany7.5–25%Section 232, Section 301

Range of the Chapter 99 duties (percent of customs value) across the lines of this heading. A range means the result differs between lines or depends on facts about the goods; an asterisk marks lines whose duty also depends on a specific (per unit) base rate. Other origins (Japan, South Korea, Taiwan, India, United Kingdom and any other country): in the calculator and the API.

Chapter 99 headings on these lines

  • 9903.05.29 Section 301
  • 9903.05.31 Section 301
  • 9903.05.39 Section 301
  • 9903.05.55 Section 301
  • 9903.05.84 Section 301
  • 9903.05.90 Section 301
  • 9903.05.93 Section 301
  • 9903.05.94 Section 301
  • 9903.74.08 Section 232
  • 9903.74.10 Section 232
  • 9903.74.11 Section 232
  • 9903.88.01 Section 301
  • 9903.88.02 Section 301
  • 9903.88.03 Section 301
  • 9903.94.05 Section 232
  • 9903.94.06 Section 232
  • 9903.94.53 Section 232

Every line, every origin, with citations

This page sums heading 8408 up. The duty for one line, origin and date comes from the duty engine:

  • Base rate plus each Chapter 99 line, in percent and in dollars
  • Citations to the Federal Register, CBP and the USITC, with the quoted text
  • The lines considered and not applied, and why
  • Any origin, any entry date from 2025-01-01 to 2026-10-09
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Lines in this heading

The 17 statistical lines of heading 8408

Each code opens the free calculator for that line on 2026-10-09: base rate, every Chapter 99 line with its citations, and the duty in dollars.

  • 8408.10.00.05Marine propulsion engines › Not exceeding 111.9 kW
  • 8408.10.00.15Marine propulsion engines › Exceeding 111.9 kW but not exceeding 149.2 kW
  • 8408.10.00.20Marine propulsion engines › Exceeding 149.2 kW but not exceeding 223.8 kW
  • 8408.10.00.30Marine propulsion engines › Exceeding 223.8 kW but not exceeding 373 kW
  • 8408.10.00.40Marine propulsion engines › Exceeding 373 kW but not exceeding 746 kW
  • 8408.10.00.50Marine propulsion engines › Exceeding 746 kW
  • 8408.20.10.40… › To be installed in tractors suitable for agricultural use › Not exceeding 37.3 kW
  • 8408.20.10.80… › To be installed in tractors suitable for agricultural use › Exceeding 37.3 kW
  • 8408.20.20.00Engines of a kind used for the propulsion of vehicles of chapter 87 › To be installed in vehicles of…
  • 8408.20.90.00Engines of a kind used for the propulsion of vehicles of chapter 87 › Other
  • 8408.90.10.40… › To be installed in agricultural or horticultural machinery or equipment › Not exceeding 37.3 kW
  • 8408.90.10.80… › To be installed in agricultural or horticultural machinery or equipment › Exceeding 37.3 kW
  • 8408.90.90.10… › Other › Not exceeding 149.2 kW
  • 8408.90.90.20… › Other › Exceeding 149.2 kW but not exceeding 373 kW
  • 8408.90.90.30… › Other › Exceeding 373 kW but not exceeding 746 kW
  • 8408.90.90.40… › Other › Exceeding 746 kW but not exceeding 1,119 kW
  • 8408.90.90.50… › Other › Exceeding 1,119 kW

Recent changes

Between 2025-10-09 and 2026-10-09: the Chapter 99 headings applied changed for all 5 main origins. Dated changes, with their sources: the change list and the Tariff Change Feed.

Scope

We do not classify goods. These pages show reference rates for HTS codes. Choosing the code for an entry is the importer's responsibility, and entries are filed by the importer of record or a licensed customs broker. Duties shown are calculations from public sources, not legal advice.