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Rough Cast Iron Intake Manifold Casting

Basic cast-iron intake manifold blank for automotive spark-ignition engines, cleaned of risers/gates and lightly machined for fixture points only. Runner passages remain fully cored and un machined. Classifies in 8409.91.10 as unfinished part for 8407/8408 engines.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

8409.91.50Higher: 40% vs 37.5%

If with runner porting or flange facing

Machined manifolds beyond cleaning classify as 'other' cast-iron parts.

7325.10.00Same rate: 37.5%

If stationary engine applications

Non-vehicle engine castings may fall under general provisions.

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

• Cross-section photos showing untouched internal runners prove no port machining occurred

• Certify compatibility only with spark-ignition engines to distinguish from diesel manifolds

• Watch for flange facing—any port matching disqualifies from this basic casting code