Honda GX390 General Purpose Engine from China

The Honda GX390 is a 389cc spark-ignition 4-stroke reciprocating piston engine designed for small equipment like generators, pumps, and lawn mowers. It falls under HTS 8407.90.90 as an 'other' spark-ignition reciprocating engine not exceeding 373.99 kW, distinct from automotive or aircraft engines. This classification covers versatile horizontal-shaft engines for non-vehicle industrial and outdoor power applications.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)

Import Tips

Verify engine displacement and power output documentation to confirm classification under 8407.90.90 and avoid misclassification as marine (8407.21) engines

Include EPA/CARB emission labels and certificates; non-road engines require compliance with 40 CFR Part 1068

Declare exact kW rating precisely, as engines over 373.99 kW shift to other subheadings; common pitfall is incomplete technical specs