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Diesel Engine Piston for Passenger Cars

A forged aluminum piston designed specifically for diesel engines in passenger vehicles under HTS 8701.21-8701.29 or trucks/buses in 8702-8704. It falls under 8409.99.91.90 as a part suitable solely or principally for engines of heading 8407/8408, intended for installation in specified vehicles.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+37.5%40%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

8708.99.81Higher: 52.5% vs 40%

If not proven principally for 8407/8408 engines

General vehicle parts not specific to engines fall under 8708 as other motor vehicle parts.

8412.90.90Lower: 37.5% vs 40%

If classified as engine subassembly rather than discrete part

Certain engine subcomponents may shift to 8412 for specific engine types like outboard motors.

8483.10.50.00Higher: 50% vs 40%

If sold as aftermarket repair kit with crankshaft

Transmission shafts and cranks, even for engines, classify under 8483 when not solely engine-specific.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify vehicle compatibility certification to confirm classification under 8409.99.91.90; mismatch leads to reclassification

• Provide engine model and vehicle subheading documentation to Customs for smooth clearance

• Avoid common pitfall of classifying as general auto parts under 8708 without proving principal use with 8407/8408 engines