8483.10.10.10 - For motorcycles

This classification pertains to transmission shafts, specifically camshafts and crankshafts, that are exclusively or primarily designed for use with spark-ignition internal combustion piston engines or rotary engines. These components are integral to the power generation and transfer within such engines. The classification is further refined to include those intended for vehicles falling under Chapter 87 of the HTS, which covers vehicles other than railway or tramway locomotives and rolling stock.

The primary distinction within this level lies between camshafts and crankshafts specifically designed for vehicles of Chapter 87 (this category) and "other" camshafts and crankshafts (HTS 8483.10.10.30). This means that while both categories cover camshafts and crankshafts, this specific HTS code is reserved for those manufactured for automotive applications, whereas the sibling category would encompass similar engine components destined for other uses, such as industrial machinery or marine engines, not classified under Chapter 87.

As this classification is a leaf node, there are no further subcategories. Therefore, the focus for classification within HTS 8483.10.10.10 rests on confirming that the camshaft or crankshaft is indeed intended for spark-ignition internal combustion piston engines or rotary engines, and that its ultimate end-use is within vehicles classified under Chapter 87.