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HTSUS, United States

3819.00.00.10

Hydraulic brake fluids

Classification path

  1. Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals
  2. Hydraulic brake fluids

Rates of duty

General (MFN)
6.5%
Column 2Cuba, North Korea, Russia, Belarus
3.7¢/kg + 60%
Unit of quantity
kg

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 3819

About heading 3819

Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals

Heading 3819 covers hydraulic brake fluids and other prepared liquids used for hydraulic transmission, where the petroleum oil content is under 70% by weight (including fluids with no petroleum oil). The heading has two declarable lines: one for hydraulic brake fluids and one for all other hydraulic transmission liquids, both at the same rate.

Full guide to heading 3819

Products in this heading

  • Hydraulic brake fluid for passenger cars and light trucks
  • DOT 4 brake fluid sold in bottles for retail
  • Hydraulic jack oil
  • Hydraulic system fluid for farm and construction equipment
  • Automatic transmission fluid with less than 70% petroleum oil
  • Power steering fluid
  • Hydraulic fluid for industrial presses and lifts
  • Shock absorber fluid

Frequently asked questions

What is the HTS code for hydraulic brake fluid?

Hydraulic brake fluids are classified under 3819.00.00.10, with a general (MFN) rate of 6.5%.

What is the duty on other prepared hydraulic transmission liquids?

Other hydraulic transmission liquids under heading 3819 are classified as 3819.00.00.90 and carry a general (MFN) rate of 6.5%.

How do I classify a hydraulic fluid that contains petroleum oil?

If the fluid is a prepared hydraulic liquid and contains less than 70% by weight of petroleum oils, it goes in heading 3819, using 3819.00.00.90 for non-brake fluids and 3819.00.00.10 for brake fluids, both at a general (MFN) rate of 6.5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.

HTS 3819.00.00.10: Hydraulic brake fluids, 6.5% duty | HTSBase