8407.90.90

Analysis

HTS 8407.90.90 covers other engines: other under heading 8407 (spark-ignition reciprocating or rotary internal combustion piston engines). US Customs collects import statistics for it under 5 ten-digit suffixes, reported in number of items.

Neighbouring lines carry rates from duty-free to 2.5%, so the exact line matters. The widest gap is with 8407.34.48 (to be installed in vehicles of subheading 8701.21, 8701.22, 8701.23…), at 2.5%: a product that belongs there but is entered here, or the reverse, changes the duty by 2.5 percentage points.

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.

Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 61% of the 823 tariff lines in chapter 84. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.

The ten-digit suffixes separate gas, less than 746 W, 746 W or greater but less than 4,476 W, 4,476 W or greater but not exceeding… and exceeding 18.65 kW. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.