8407.90.90.80 - Exceeding 18.65 kW

This HTS category, 8407.90.90.80, specifically covers spark-ignition internal combustion piston engines that exceed 18.65 kW in power output. These are engines designed to operate using a spark plug to ignite the fuel-air mixture, commonly found in applications requiring significant power generation beyond that of smaller engines. Examples include larger stationary engines for industrial equipment, generators, pumps, or heavy-duty vehicles not specifically covered by other headings.

This classification is distinct from its sibling categories by its defined power threshold. Unlike the engines classified under 8407.90.90.20 (less than 746 W), 8407.90.90.40 (746 W or greater but less than 4,476 W), and 8407.90.90.60 (4,476 W or greater but not exceeding 18.65 kW), this category applies exclusively to engines with a power output strictly greater than 18.65 kW. This precise kilowatt demarcation is the primary criterion for distinguishing between these related categories within the broader classification of "Other engines" for spark-ignition internal combustion piston engines.

As this is a leaf node in the HTS structure, there are no further subdivisions under this specific code. Therefore, the classification hinges entirely on meeting the preceding criteria, particularly the engine type (spark-ignition internal combustion piston engine) and the specified power output exceeding 18.65 kW. Proper documentation, such as manufacturer specifications or test reports detailing the engine's maximum power output, is crucial for accurate classification under this heading.