Rough Cast Iron Piston Casting
Unfinished cast-iron piston blank for spark-ignition engines, cleaned and trimmed only for gates/risers removal and fixture location, awaiting skirt and crown machining. Designed principally for internal combustion piston engines in headings 8407/8408. HTS 8409.91.10 applies to this minimally processed foundry output.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of other than cast iron material
Non-cast-iron engine parts for spark-ignition engines fall under 8409.99.
If bulk castings not engine-specific
Unspecified engine castings classify as general cast-iron products.
If for turbocharger components
Parts for gas turbines (including turbochargers) go to 8411.99.
Not sure which classification is right?
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Import Tips & Compliance
• Ensure no wrist pin bores are drilled; such features move classification to 8409.99
• Use dimensional reports comparing to final specs to prove 'not advanced beyond cleaning' status
• Avoid common error of shipping with trial fits—pure rough castings only for this code
Related Products under HTS 8409.91.10
Rough Cast Iron Main Bearing Cap
Individual cast-iron main cap castings, cleaned for engine blocks, spark-ignition use. 8409.91.10.
Rough Cast Iron Ladder Frame
Engine ladder frame casting connecting main cap to block, cleaned for spark-ignition engines. 8409.91.10.
Rough Cast Iron Camshaft Carrier
Cast-iron carrier for overhead cam engines, basic casting stage for 8408 engines. HTS 8409.91.10.
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.
Rough Cast Iron Valve Cover
Cast-iron rocker/valve cover casting cleaned and trimmed minimally for spark-ignition engine cylinder heads, with no baffle or mounting hole machining. For use solely with 8407/8408 engines per HTS 8409.91.10 description.
Rough Cast Iron Oil Pan
Basic oil sump/pan casting in cast iron for spark-ignition engines, gates removed, drain boss located but not threaded. Unfinished per 8409.91.10 for 8408 engines.