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Zongshen ZS50AS 4-Stroke Engine from Japan

Zongshen ZS50AS is a reliable 49cc air-cooled spark-ignition reciprocating engine for propulsion of mini choppers, ATVs, and drift trikes under Chapter 87. It qualifies for HTS 8407.31.0080 due to its sub-50cc displacement and exclusion from aircraft or motorcycle-specific provisions. Features electric start and CDI ignition for easy vehicle integration.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.94.4315%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.
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

Import Tips

Submit OEM displacement test reports; Chinese manufacturers often face scrutiny on capacity declarations

Ensure no marine propulsion adaptations to avoid 8407.21 marine engine headings