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SITCSection 7
U.S. imports of chassis fitted with engines for motor vehicles (SITC 78410) totaled $8.6M in April 2026, traded with 10 countries.
Importers of Chassis Fitted with Engines for Motor Vehicles paid $2.1M in duties in April 2026 — an effective duty rate of 24% on $8.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Chassis Fitted with Engines for Motor Vehicles imports of $8.6M in April 2026 ran 23% above the year-to-date monthly average of $6.9M.
Last updated: April 2026 dataEngine-fitted chassis — the rolling powertrain platforms supplied before bodywork is added — serve as critical intermediate inputs for bus, truck, and specialty vehicle manufacturers that source bodies separately from chassis. Classification as a chassis rather than a complete vehicle depends on the absence of a body at time of importation; adding even a cab can shift the classification to a complete vehicle, a distinction CBP scrutinizes closely. Importers assembling vehicles domestically from imported chassis should also evaluate whether the finished product triggers NHTSA compliance obligations at the chassis stage.
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CBP applies the 'essential character' test: a chassis fitted with an engine but lacking a body or cab is generally classified as a chassis. However, if the chassis arrives with a cab attached or with bodywork that gives it the essential character of a complete vehicle, it will be classified as a complete motor vehicle. Importers should review the configuration at time of importation carefully and consider a binding ruling if the line is unclear.
Incomplete vehicles — including chassis — are subject to NHTSA's incomplete vehicle regulations, which require the chassis manufacturer to provide a statement of conformity with applicable FMVSS to the final-stage manufacturer. The final-stage manufacturer completing the vehicle bears responsibility for overall FMVSS compliance. Importers acting as final-stage manufacturers must understand these obligations before the chassis enters commerce.
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Monthly import values over time