8407.33.10 - To be installed in tractors suitable for agricultural use

This HTS category, 8407.33.10, specifically classifies spark-ignition reciprocating internal combustion piston engines with a cylinder capacity exceeding 250 cc but not exceeding 1,000 cc, that are intended for installation in tractors suitable for agricultural use. These engines are distinct from those destined for other types of vehicles, as indicated by the parent categories focusing on engines for vehicles of Chapter 87.

The key differentiator for this subcategory lies in its intended application. While sibling categories might cover engines for other specific vehicle types within Chapter 87 or general "other" applications, 8407.33.10 narrows the focus exclusively to engines built for agricultural tractors. This purposeful distinction is crucial for accurate customs declarations and duty assessments.

Further subdivision exists within this category based on engine power output. The subcategories, such as those not exceeding 37.3 kW and those exceeding 37.3 kW, allow for more granular classification based on the engine's performance capabilities, which can have implications for trade statistics and specific regulatory requirements.