China HS → US HTS
China HS 8407.3100 (气缸容量（排气量）不超过50 毫升): US HTS candidates & duty rates
China tariff line for "气缸容量（排气量）不超过50 毫升" shares the international HS6 anchor 840731 with 3 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 8407.3100 most commonly maps to US HTS 8407.31.00. Total duty rate from China (MFN + Chapter 99 overlays): about 50%. Verify the description before filing.
China tariff line facts
| China HS line | 8407.3100 |
|---|---|
| Description | 气缸容量（排气量）不超过50 毫升 |
| Category path | 点燃往复式或旋转式活塞内燃发 动机 > 用于第八十七章所列车辆的往 > 气缸容量（排气量）不超过50 毫升 |
| Shared HS6 | 840731 |
| China MFN rate (reference) | 10 |
| Schedule version | 2026 |
US HTS candidates (3)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 8407.31.00 | Of a cylinder capacity not exceeding 50 cc | Free | 50% |
| 8407.31.00.40 | Less than 746 W | Free | 50% |
| 8407.31.00.80 | Other | Free | 50% |
Total = MFN base + Section 301 / IEEPA / reciprocal overlays active for China origin. AD/CVD not included.
Frequently asked questions
Which US HTS code corresponds to China HS 8407.3100?
There is no one-to-one mapping: only the first six digits (HS6 840731) are shared internationally. Under this anchor the US schedule has 3 candidate lines; the most common is 8407.31.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "气缸容量（排气量）不超过50 毫升" from China?
Using the leading candidate 8407.31.00, the total rate from China is about 50% — MFN base plus the Chapter 99 overlays (Section 301 / IEEPA / reciprocal) active for China origin. Other candidates may differ, so verify classification first.
Why is China HS8 not identical to US HTS8?
The WCO Harmonized System is only agreed to six digits. China extends HS6 to 8/10-digit national lines for its own tariffs and statistics, and the US does the same with HTS8/HTS10 — the extensions are independent, so codes must be bridged via HS6.
How do I confirm the final HTS classification?
Compare the US line descriptions against your product facts, check CBP rulings for similar goods, and when in doubt request a binding ruling. The bridge tool lets you re-run this query and compare all candidates side by side.