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SITCSection 7
U.S. imports of reciprocating piston engines, cylinder capacity not exceeding 1,000 cc (SITC 71321) totaled $51.7M in April 2026, traded with 19 countries.
Importers of Reciprocating Piston Engines, Cylinder Capacity Not Exceeding 1,000 cc paid $4.7M in duties in April 2026 — an effective duty rate of 11% on $42.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Reciprocating Piston Engines, Cylinder Capacity Not Exceeding 1,000 cc imports of $51.7M in April 2026 ran 20% above the year-to-date monthly average of $43.2M.
Last updated: April 2026 dataSmall-displacement reciprocating piston engines — those with cylinder capacity at or below 1,000 cc — are widely used in motorcycles, small passenger vehicles, power equipment, and light utility machinery. Classification at this displacement threshold is critical because it determines duty treatment and separates these engines from their larger-displacement counterparts under SITC 71322. Importers should verify displacement documentation carefully, as engine capacity is the sole classification criterion and misclassification between the two displacement bands is a common audit finding.
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Cylinder capacity is the total swept volume of all cylinders, typically expressed in cubic centimeters (cc) and stated in the manufacturer's technical specification sheet or engine data plate. Importers should retain the original manufacturer's spec sheet and any test certificates to substantiate the declared displacement at entry, since customs may request verification when the figure is close to the 1,000 cc threshold.
No. Engines at or below 1,000 cc and those exceeding 1,000 cc fall under different SITC codes and corresponding HTS subheadings, each with its own duty rate and statistical reporting requirement. Mixed shipments must be declared on separate line items with quantities and values allocated by displacement band.
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Monthly import values over time