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HSChapter 38
U.S. exports of hydraulic brake fluids and prepared hydraulic transmission liquids (HS 381900) totaled $15.3M in July 2026.
Importers of Hydraulic Brake Fluids and Prepared Hydraulic Transmission Liquids paid $738K in duties in July 2026 — an effective duty rate of 14% on $5.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataFormulated with less than 70% petroleum or bituminous mineral oils by weight, these specialty fluids serve critical safety and power-transfer functions in automotive, aerospace, and industrial hydraulic systems. The US tariff schedule distinguishes brake fluids (3819000010) from other prepared hydraulic transmission liquids (3819000090), a split that matters for classification when a product serves dual functions. Germany and the United Kingdom are the leading import sources, reflecting the concentration of advanced automotive chemical manufacturing in Western Europe. Products subject to Section 301 measures may apply to certain supplier origins, so verifying country of origin against current trade-remedy orders is advisable before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
250 shipments/mo
Under the US schedule, hydraulic brake fluids are classified under 3819000010, while all other prepared liquids for hydraulic transmission fall under 3819000090. The key classification question is the product's intended function: brake actuation versus general hydraulic power transfer. Importers should ensure product documentation and safety data sheets clearly state the end use.
Yes — heading 3819 applies only when the product contains less than 70% by weight of petroleum or bituminous mineral oils. Formulations at or above that threshold may fall under a different chapter, so laboratory analysis or supplier certification of oil content is an important part of pre-entry classification review.
Subheading 1 of 1 in heading 3819
Subheading 381900 · $5.6M of $5.6M
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ImportsExports
Imports
$5.6MYoY · Pro
Exports
$15.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3819000010 | Hydraulic Brake Fluids | $3.7M | 13.59% | 96.91% | $499K |
| 3819000090 | Other Prepared Liquids for Hydraulic Transmission | $1.9M | 12.45% | 93.34% | $239K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3819000000 | Hydraulic Brake Fluids/Liq for Hydraulic Trans Etc | $15.3M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · July 2026
destination
Canada and Mexico together take 47% of it.
customs district
origin
entry
rate provision · imports
4.3% enters free of duty; the effective duty rate is 13.20%.