9902.15.67 - Shell and tube oil coolers designed for compression-ignition engines, such coolers measuring 50 cm or more but not over 180 cm in length, 10 cm or more but not over 70 cm in width and 15 cm or more but not over 70 cm in height (provided for in subheading 8419.89.95)

This HTS classification, 9902.15.67, specifically covers shell and tube oil coolers designed for use with compression-ignition engines. The defining characteristics for inclusion in this category are the cooler's physical dimensions: a length measuring 50 cm or more but not exceeding 180 cm, a width between 10 cm and 70 cm inclusive, and a height also between 15 cm and 70 cm inclusive. These specific dimensional parameters, along with their intended application for compression-ignition engines, are crucial for accurate classification within this provision.

As this is a specialized provision within Chapter 99, it is distinct from the general tariff headings for machinery and parts thereof found in other chapters. While Chapter 84, for instance, covers a broad range of machinery and mechanical appliances, this particular code addresses a niche product with stringent dimensional and functional requirements, likely due to temporary trade legislation or import restrictions. Its sibling categories at this level would represent other temporary provisions or specific tariff treatments, rather than distinct types of goods.

Since HTS 9902.15.67 is a leaf node, it does not have further subcategories. All qualifying shell and tube oil coolers meeting the specified criteria are directly classified under this heading. The "provided for in subheading 8419.89.95" note indicates the underlying general classification for such goods when not subject to the specific temporary provision outlined here, highlighting that this 9900 series code represents an overlay or modification to the standard classification.