</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

BMW S1000R Alternator Rotor from Japan

Lightweight magnesium alternator rotor for BMW S1000R inline-four spark-ignition engine. 450W output at 9,500 RPM with OEM magnetic specifications. HTS 8409.91.99.90 as engine electrical generator rotor.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Certify magnetic flux density and rotor balance for specific crankshaft RPM range,Document spline pattern matching engine crankshaft end,Include weight reduction specifications proving racing application