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Yamaha MZ350 Engine from Japan

Yamaha MZ350 is a 347cc air-cooled spark-ignition engine rated at 8.5 kW, primarily for propulsion in mini bikes and youth ATVs of Chapter 87. It qualifies for 8407.33.9040 due to cylinder capacity of 250-1000cc and power below 18.65 kW limits. Lightweight design suits recreational low-displacement vehicles.

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

Document age-appropriate vehicle use (e.g

youth models) for compliance; avoid pitfalls by not marketing as go-kart stationary power

Certify spark-ignition type vs diesel

Use calibrated dyno tests for kW verification