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Honda GX390 Small Engine from Mexico

The Honda GX390 is a 389cc spark-ignition reciprocating piston engine rated at 9.3 kW (approximately 13 HP), designed for propulsion in small utility vehicles like go-karts and mini bikes under Chapter 87. It falls under HTS 8407.33.9040 due to its cylinder capacity between 250cc and 1000cc and power output not exceeding 18.65 kW. This classification applies specifically to engines intended for vehicle propulsion rather than stationary power generation.

Duty Rate — Mexico → United States

25%

Rate breakdown

9903.94.0525%Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) 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

Verify engine power rating with manufacturer specs and include propulsion end-use certification for vehicles of Chapter 87; common pitfall is misclassifying as stationary garden equipment

Ensure cylinder capacity documentation matches 250-1000cc range

Obtain EPA/CARB emissions labels for US compliance