U.S. imports of Fluid Power Pumps & Motors (NAICS 333996) totaled $454.5M in August 2026, imported from 98 countries.
Importers of Fluid Power Pumps & Motors paid $50.5M in duties in August 2026, an average duty rate of 11.25% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataHydraulic pumps and motors — gear, vane, piston, and radial designs — are core motion-control components in mobile machinery, industrial presses, marine systems, and renewable-energy equipment. NAICS 333996 also captures pneumatic motors, which are classified separately from their hydraulic counterparts under HTS chapter 84. Displacement volume, maximum operating pressure, and output configuration are the specification parameters that most directly determine tariff subheading, and Chinese-origin units in this category may carry Section 301 tariff exposure that significantly affects landed cost.
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24.9K import shipments a month
Customs classification of hydraulic pumps under chapter 84 turns primarily on the pump's operating principle (gear, vane, or piston), whether it is fixed or variable displacement, and its rated operating pressure. Importers should have the manufacturer's technical datasheet available at entry to support the declared subheading.
Possibly. CBP applies the GRI 'complete or finished article' rules and may classify a matched pump-motor set as a hydrostatic transmission if it is presented as a functional unit with a common housing or mounting. A binding ruling is advisable for high-value integrated units to avoid component-level reclassification.
Imports · August 2026
origin
Mexico and Japan together supply 41% of it. China pays 38.9% duty; Mexico 4.3%.
customs district
Census does not publish district detail for this classification system.
destination
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3339 for those.
entry
Census does not publish port detail for this classification system.
National industry 4 of 7 in naics industry 33399
National industry 333996 · $454.5M of $4.1B
ImportsExports
Imports
$454.5MYoY · free account
Exports
$297.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $5.3B of Fluid Power Pumps & Motors and exported $3.7B.
Through August 2026. Source: U.S. Census Bureau.
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