Rough Cast Iron Exhaust Manifold
Unfinished cast-iron exhaust manifold for spark-ignition internal combustion engines, with gates and fins removed via minimal machining for finishing setup. Exhaust ports and collectors untouched. HTS 8409.91.10 for such basic castings principally used with 8407/8408 engines.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel construction
Non-cast-iron exhaust parts go to other materials subheading.
If silencer/muffler integrated
Vehicle exhaust systems classify complete in Chapter 87.
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Import Tips & Compliance
• Thermal crack inspection reports confirm post-casting cleaning without stress-relief machining
• Specify engine displacement range matching 8408 spark-ignition provisions
Related Products under HTS 8409.91.10
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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 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.
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.