8407.34.55

Analysis

HTS 8407.34.55 covers of a cylinder capacity exceeding 2,000 cc: other under heading 8407 (spark-ignition reciprocating or rotary internal combustion piston engines).

Rates on the nearby lines range from duty-free to 2.5%. The costliest confusion would be with 8407.34.48 (to be installed in vehicles of subheading 8701.21, 8701.22, 8701.23…) at 2.5%, a difference of 2.5 points on the customs value.

Goods from countries without normal trade relations pay the column 2 rate of 35% instead of nothing, so origin decides between free entry and a 35% duty.

There is no general-rate duty on this line, which puts it with roughly 61% of the 823 tariff lines in chapter 84 that are also free. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.

Census statistics map these goods to NAICS 333618 (Other Engine Equipment Manufacturing), an industry of 263 US establishments employing 42,686 people, the industry a domestic producer of these goods reports under.

Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.