Suitable for use solely or principally with spark-ignition internal combustion piston engines
Parts suitable for use solely or principally with the engines of heading 84.07 or 84.08. > Other: > Suitable for use solely or principally with spark-ignition internal combustion piston engines
Duty Rate (from China)
Subheadings
Products classified under Tariff item 8409.91.00
Cast Iron Marine Piston Casting
A rough cast-iron piston blank designed exclusively for spark-ignition marine propulsion engines, machined only to remove casting imperfections and permit finishing. Produced from high-strength cast iron alloy suitable for marine duty cycles.
Cylinder Liner Rough Casting
Cast-iron cylinder liner blanks for marine spark-ignition propulsion engines, machined only externally for finishing location. The internal honing surface is designed specifically for marine duty cycles and remains unfinished.
Inboard Engine Block Rough Casting
A cast-iron engine block casting for spark-ignition inboard marine propulsion engines, with gates and risers removed and minimal location machining. The block is in a rough state, awaiting final machining of bores and surfaces.
Rough Cast Iron Crankcase Housing
A rough cast-iron crankcase housing for spark-ignition internal combustion piston engines. It has been minimally processed, with only sprue removal and mounting flats machined, leaving main bearing bores and oil passages unfinished for subsequent finishing operations.
Rough Cast Iron Cylinder Head
A cast-iron cylinder head blank for spark-ignition internal combustion piston engines. It is cleaned and minimally machined only to remove casting fins, gates, sprues, and risers for finishing placement, with no combustion chambers or valve seats machined.
Rough Cast Iron Engine Block
A basic cast-iron engine block casting for spark-ignition piston engines, processed only by cleaning and minimal machining to eliminate sprues, risers, and fins for subsequent finishing. No bores, ports, or surfaces have been machined.
Rough Cast Iron Exhaust Manifold
An 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 remain untouched, awaiting final machining.
Rough Cast Iron Flywheel Casting
A basic cast-iron flywheel blank for spark-ignition engines, with only the starter ring boss located. It is in a rough state, awaiting machining of the friction surface and bolt holes for final assembly.
Rough Cast Iron Intake Manifold Casting
A basic cast-iron intake manifold blank for automotive spark-ignition engines, cleaned of risers and gates and lightly machined for fixture points only. Runner passages remain fully cored and unmachined, awaiting final finishing.
Rough Cast Iron Main Bearing Cap
Individual cast-iron main bearing cap castings, cleaned for engine blocks used in spark-ignition engines. These are rough castings awaiting machining of bearing surfaces and bolt holes for final installation.
Rough Cast Iron Piston Casting
An unfinished cast-iron piston blank for spark-ignition engines, cleaned and trimmed only for gates and risers removal and fixture location. The skirt and crown are awaiting machining, designed principally for internal combustion piston engines.
Rough Cast Iron Timing Cover
A cast-iron front timing chain or belt cover blank, minimally cleaned for spark-ignition engines. No seal surfaces have been machined, leaving the cover in a rough state for finishing operations.
Rough Cast Iron Valve Cover
A cast-iron rocker or valve cover casting cleaned and trimmed minimally for spark-ignition engine cylinder heads. No baffle or mounting hole machining has been performed, making it suitable for finishing in subsequent operations.
Rough Cast Iron Water Pump Housing
An unfinished cast-iron water pump body for engine cooling systems in spark-ignition applications, cleaned only. The casting is in a rough state, awaiting machining of the impeller cavity and mounting surfaces.