Spark-ignition reciprocating or rotary internal combustion — HTS 8407
Spark-ignition reciprocating or rotary internal combustion piston engines
Chapter 84 › Heading 8407
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 8407 is a broad product category for spark-ignition internal-combustion engines. It covers engines that ignite the fuel-air mixture with a spark, including reciprocating piston engines and rotary piston engines. These are generally power-producing engines, not complete vehicles or every item used with an engine.
The 4-digit heading is only the starting point. To reach the correct 8-digit HTSUS code, follow the more detailed subheadings and statistical breakouts. The distinctions may depend on the engine’s design and technical characteristics, such as whether it is reciprocating or rotary, its intended use, and other specifications shown in the tariff schedule. Do not assume that “engine” alone determines the code; confirm the full product description and any applicable legal notes.
What to check
- Confirm that the engine uses spark ignition and is an internal-combustion piston engine before using heading 8407.
- Identify whether the engine is reciprocating or rotary, and record its technical specifications, including cylinder and engine details requested by the tariff schedule.
- Read every subheading and 8-digit statistical breakout under heading 8407; do not stop at the 4-digit heading.
- Compare the tariff description with the engine’s manuals, nameplate, catalog, intended application, and shipment configuration.
- Check the current official HTSUS and seek a customs broker or binding classification ruling when the design, use, or specifications do not clearly fit one code.
HTS heading 8407 summary
Spark-ignition reciprocating or rotary internal combustion is a 4-digit product category containing 1 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 8407.90 | Other engines |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 8407.10.00 👉 | Aircraft engines | Free | — | 35% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 8407?
Spark-ignition reciprocating or rotary internal combustion piston engines. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.