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

2 declarable lines

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.

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

How to choose the right subheading

  • Confirm the product is a prepared liquid for hydraulic transmission or a hydraulic brake fluid.
  • Check the petroleum oil content: this heading covers fluids with less than 70% by weight, including zero.
  • Decide whether the fluid is a brake fluid or another hydraulic liquid.
  • Use 3819.00.00.10 for hydraulic brake fluids and 3819.00.00.90 for all other hydraulic transmission liquids.

Often confused with

  • Antifreeze and prepared deicing fluids

    These are cooling and deicing products, not hydraulic transmission liquids.

    Heading 3820
  • Prepared additives for mineral oils, such as viscosity improvers

    Additives are classified by their additive function, not as finished hydraulic fluids.

    Heading 3811
  • Hydraulic fluids containing 70% or more by weight of petroleum oils

    Petroleum-based liquids at or above the 70% threshold fall in the petroleum oils heading.

    Heading 2710
  • Organic composite solvents and thinners

    Solvent and thinner preparations serve a cleaning or thinning use, not hydraulic transmission.

    Heading 3814
  • Soap-based or other prepared lubricating greases and oils

    Lubricating preparations are classified by their own lubricant provisions, not as hydraulic fluids.

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%.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.

All lines in heading 3819

HTS heading 3819: Hydraulic brake fluids and other prepared liquids for hydra... | HTSBase