Loading...
SITCSection 7
U.S. imports of gear boxes (SITC 78434) totaled $1.0B in April 2026, traded with 70 countries.
Importers of Gear Boxes paid $57.4M in duties in April 2026 — an effective duty rate of 11% on $521.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Gear Boxes imports of $1.0B in April 2026 ran 12% above the year-to-date monthly average of $914.1M.
Last updated: April 2026 dataAutomotive gear boxes are precision-engineered transmission components that translate engine torque into usable wheel speed across a range of gear ratios, making them critical inputs for vehicle assembly and aftermarket repair supply chains. Classification hinges on whether the unit is a complete gearbox assembly or a sub-component, a distinction that affects both duty treatment and valuation methodology. Importers sourcing from high-volume manufacturing countries should be aware that automotive parts in this category may be subject to Section 232 tariff considerations depending on origin and product scope.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A complete gear box is generally classified as such even if it lacks minor accessories, provided it retains the essential character of a finished transmission unit. Sub-components — such as individual gear sets, shafts, or housings — are typically classified separately under parts provisions. Importers should document the functional completeness of the unit and consult a licensed customs broker to confirm the correct classification.
Certain automotive parts, including gear boxes, may fall within the scope of Section 232 national-security tariff actions depending on the specific HTS classification and country of origin. Importers should verify current applicability with a licensed customs broker before entry.
Supplier Network
Get discovered by U.S. importers searching for HS 78434 — Gear Boxes. Be the first supplier listed.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $344.6M | $281.8M | -$62.8M |
| JAPAN | $255.7M | $6.3M | -$249.3M |
| CANADA | $92.0M | $126.2M | +$34.2M |
| GERMANY | $182.0M | $22.8M | -$159.2M |
| KOREA, SOUTH | $87.2M | $1.1M | -$86.1M |
Monthly import values over time