8407.34.35.30 - Not exceeding 37.3 kW

This HTS classification pertains to reciprocating piston internal combustion engines specifically designed for spark ignition and intended for installation in tractors suitable for agricultural use. These engines are characterized by a cylinder capacity exceeding 2,000 cubic centimeters. The key defining factors for inclusion in this category are the engine's intended application in agricultural tractors and its specific displacement.

This category is distinct from its sibling category, "Exceeding 37.3 kW," which is differentiated solely by engine power output. While engines classified here may also exceed 37.3 kW, the primary distinguishing criterion for this node is their installation context within agricultural tractors, regardless of their power rating within that context.

As this is a leaf node, there are no further subcategories. Therefore, classification under this heading is final, based on the established criteria of being a spark-ignition reciprocating piston engine with a cylinder capacity over 2,000 cc, intended for installation in agricultural tractors.