8407.32.90.40 - Not exceeding 18.65 kW

This HTS classification pertains to spark-ignition internal combustion piston engines, specifically those of the reciprocating type, designed for propelling vehicles classified under Chapter 87. The engines covered here fall within a specific cylinder capacity range, exceeding 50 cubic centimeters but not exceeding 250 cubic centimeters. Critically, this subcategory further narrows the scope to engines that do not exceed 18.65 kilowatts (kW) in power output. These are typically found in smaller vehicles such as motorcycles, scooters, light all-terrain vehicles (ATVs), and certain types of compact cars.

The primary differentiator for this classification is the power output limit of 18.65 kW. Engines within the same parent categories (reciprocating piston engines for vehicles, cylinder capacity exceeding 50 cc but not exceeding 250 cc) that exceed this power threshold would be classified under the sibling category 8407.32.90.80. The classification hinges on both the engine's displacement (cylinder capacity) and its maximum power rating, ensuring precise categorization for tariff and trade purposes.

As this is a leaf node, there are no further subcategories. Classification at this level is therefore definitive, based on the engine's suitability for vehicle propulsion, its specified cylinder capacity range, and its power output not exceeding 18.65 kW. When classifying, it is essential to consult the engine's specifications to confirm these critical parameters.