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Amsoil Shock Therapy Transmission Additive

Synthetic additive for automatic transmission fluid that stops slippage and reduces harsh shifts. Under HTS 3811.29.00.00 as other additive for lubricating oils used in transmissions (mineral or synthetic base). Restores hydraulic pressure and cools operating temperatures.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3819.00.00Same rate: 41.5%

If pure hydraulic brake or transmission fluids

Finished hydraulic fluids are 3819; additives for mixing into them are 3811.

3403.19Lower: 15.8% vs 41.5%

If marketed as complete lubricant

Retail lubricants in 3403 vs concentrated additives in 3811.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify compatibility with ATF (automatic transmission fluid) in import docs

Hazardous material declaration required for flammable additives

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