8708.50.81.00 - Of cast iron

This HTS classification, "Of cast iron," specifically addresses parts for drive-axles with differentials, non-driving axles, and their components that are intended for use in motor vehicles of heading 8703. The key defining characteristic of goods falling under this subheading is their construction material: cast iron. This includes components like axle housings, differential casings, or other structural elements of axles that are manufactured through casting processes using iron alloys.

Distinguishing this category from its sibling, which also falls under "Other" parts for vehicles of heading 8703, lies solely in the material composition. While the sibling category might encompass parts made from steel, aluminum, or composite materials, this specific subheading is exclusively for those manufactured from cast iron. Therefore, the material dictates the precise classification.

As this node is a leaf node within the HTS structure, it does not have further subcategories. Classification under 8708.50.81.00 is final once the item is identified as a part of a drive-axle or non-driving axle, intended for vehicles of heading 8703, and confirmed to be made of cast iron. This ensures that all cast iron axle components for these specific motor vehicles are consistently classified under this designation.