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HSChapter 38
U.S. imports of hydraulic brake fluids and prepared hydraulic transmission liquids (HS 381900) totaled $6.4M in April 2026, traded with 18 countries.
Importers of Hydraulic Brake Fluids and Prepared Hydraulic Transmission Liquids paid $1.0M in duties in April 2026 — an effective duty rate of 16% on $6.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Hydraulic Brake Fluids and Prepared Hydraulic Transmission Liquids imports of $6.4M in April 2026 ran 31% above the year-to-date monthly average of $4.9M.
Last updated: April 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.
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.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $35K | $4.4M | +$4.4M |
| GERMANY | $4.0M | $13K | -$3.9M |
| MEXICO | $213K | $2.4M | +$2.2M |
| UNITED KINGDOM | $1.5M | $475K | -$1.0M |
| HONG KONG | -- | $1.8M | +$1.8M |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3819000010 | HYDRAULIC BRAKE FLUIDS | $4.5M | 16.37% | $721K |
| 3819000090 | OTHER PREPARED LIQUIDS FOR HYDRAULIC TRANSMISSION | $1.9M | 16.21% | $283K |
HYDRAULIC BRAKE FLUIDS
OTHER PREPARED LIQUIDS FOR HYDRAULIC TRANSMISSION
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3819000000 | HYDRAULIC BRAKE FLUIDS/LIQ FOR HYDRAULIC TRANS ETC | $17.7M |
HYDRAULIC BRAKE FLUIDS/LIQ FOR HYDRAULIC TRANS ETC
3.7M kg
PRODUCTS AND RESIDUALS OF CHEMICAL INDUSTRY, NESOI
HS 382499
DIAGNOSTIC OR LABORATORY REAGENTS INCL KITS, NESOI
HS 382219
CHEM ELEM DOPED, USED IN ELECTRON, DISCS WAFERS ET
HS 381800
SUPPORTED CATALYSTS W PREC METAL/PREC MTL COMPND
HS 381512
SUPPORTED CATALYSTS, NESOI
HS 381519
ADDITIVE FOR LUB OIL CONT PETRO/BITUMINOUS MINOIL
HS 381121
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | $2.4M | $894K | -$1.5M |
| SAVANNAH, GA | $664K | $2.5M | +$1.8M |
| NEW YORK, NY | -- | $2.5M | +$2.5M |