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N362417 · 2026-07-16 — The tariff classification of a lock-valve spring retainer from South Korea
The item under consideration is a lock-valve spring retainer (Part # 22223-2A800) which you state is a collet-type component consisting of two semi-circular pieces, intended for use in the valve train of a vehicular gasoline (spark-ignition) engine. The function of this component is to secure the valve spring retainer to the valve stem, allowing the valve spring, retainer, and valve to operate together as an integrated assembly. In your request, you suggest the lock-valve spring retainer is classified under subheading 8409.91, Harmonized Tariff Schedule of the United States (HTSUS), which…
N361651 · 2026-05-29 — The tariff classification of timing chain tensioning assembly from South Korea
The item under consideration has been identified as a timing chain tensioning assembly, Part number24410-2JTA2, used in the NU PE engine.The subject assembly, composed of a steel housing, springs, check valve, plunger, ratchet ring and lockingpin, is a component of a timing chain system that links the crankshaft and the camshaft, thereby preciselysynchronizing piston movement with the operation of the intake and exhaust valves. It is a part of aspark-ignition internal combustion piston engine designed to maintain optimal tension in the timing chain.The timing chain system consists of a driver…
N361648 · 2026-05-28 — The tariff classification of timing chain guide assembly from South Korea
The item under consideration has been identified as an automotive timing chain guide assembly, Part number24430-2J000, which is used in the NU PE engine.The subject item is a component of the timing chain system that links the crankshaft and the camshaft of theengine and that synchronizes the reciprocating motion of the pistons with the opening and closing of theintake and exhaust valves. Its function is to guide the timing chain so that it travels along a constant path.You state that the subject item guides the timing chain between the crank sprocket and the cam sprocket, sothat the chain…
N361649 · 2026-05-28 — The tariff classification of tensioner assembly from South Korea
The item under consideration has been identified as the tensioner assembly-O/P & BS Chain, Part number24460-2T500, used in the THETA3 engine.The subject item is a component of an automobile engine designed to maintain proper tension in the drivechain that transmits power from the crankshaft to the oil pump and balance shaft. It features an integrateddesign in which the tensioner and the tensioner arm are combined, with the shoe and plate base collectivelyperforming the function of the tensioner arm.Theis a key component that maintains a proper tension on the OP&BS drive chain, which tensioner…
N361650 · 2026-05-28 — The tariff classification of two (2) models of timing chain tensioning assemblies from South Korea
The first item has been identified as a timing chain tensioner assembly, Part number 24410-2S001, which isused in the Hyundai THETA-III Engine.The second item has been identified as a timing chain tensioner assembly, Part number 24410-2S300, whichis used in the Hyundai THETA-III Engine.The subject item is a component of a timing chain system that links the crankshaft and the camshaft, therebyprecisely synchronizing piston movement with the operation of the intake and exhaust valves. It is a part of aspark-ignition internal combustion piston engine designed to maintain optimal tension in the…
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