Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: > Filtering or purifying machinery and apparatus for gases: > Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines
Duty Rate (from China)
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, and 9903.94.63, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter
Articles of iron or steel, derivative articles of iron or steel, articles of aluminum, derivative articles of aluminum, passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks and parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks, semiconductor articles, semi-finished copper and intensive copper derivative products, wood products, or medium- and heavy-duty vehicles or medium- and heavy-duty vehicle parts, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
Products classified under HTS 8421.32.00.00
Diesel Particulate Filter (DPF) for Light Trucks
A ceramic wall-flow particulate filter designed to capture soot and particulate matter from diesel engine exhaust in light trucks. It falls under HTS 8421.32.00.00 as a particulate filter for purifying exhaust gases from internal combustion engines. Regeneration occurs via active or passive methods to burn off trapped particulates.
Three-Way Catalytic Converter for Gasoline Passenger Cars
A catalytic converter containing platinum, palladium, and rhodium catalysts on a ceramic honeycomb substrate to simultaneously reduce CO, HC, and NOx in gasoline engine exhaust. Classified under HTS 8421.32.00.00 for purifying exhaust from internal combustion engines. It operates efficiently across a wide temperature range.
Gasoline Particulate Filter (GPF) for Direct Injection Engines
A wall-flow filter coated with three-way catalysts to trap fine particulates from gasoline direct injection engines while converting pollutants. HTS 8421.32.00.00 applies as a combined particulate filter and converter for combustion engine exhaust purification.
Heavy-Duty Diesel Oxidation Catalyst (DOC)
A flow-through catalytic converter that oxidizes CO and HC in heavy-duty diesel truck exhaust upstream of DPF/SCR systems. Falls under HTS 8421.32.00.00 as catalytic apparatus for internal combustion engine exhaust purification.
Motorcycle Catalytic Converter with Lambda Sensor
Compact metallic substrate catalytic converter for motorcycles, often integrated with oxygen sensor ports for closed-loop control. Classified in HTS 8421.32.00.00 for filtering/purifying two-wheeler internal combustion engine exhaust.
SCR Catalyst for Diesel Exhaust Aftertreatment
Selective Catalytic Reduction (SCR) converter using urea/DEF to convert NOx in diesel exhaust of commercial vehicles. HTS 8421.32.00.00 covers this catalytic apparatus for purifying internal combustion engine gases.
OEM Replacement Catalytic Converter for Toyota Camry
Direct-fit replacement three-way catalytic converter engineered for 2.5L Toyota Camry engines, meeting original emissions specifications. Falls under HTS 8421.32.00.00 as apparatus for purifying automobile internal combustion exhaust.
High-Flow Performance Catalytic Converter for Subaru WRX
400 CPI high-flow catalytic converter designed for Subaru WRX turbo engines, balancing emissions control with performance. HTS 8421.32.00.00 applies to aftermarket converters purifying internal combustion exhaust gases.
Universal Catalytic Converter 2.5 Inch Inlet/Outlet
Spin-on or weld-on universal catalytic converter cartridge with 2.5" connections for custom exhaust fabrication. Classified under HTS 8421.32.00.00 for filtering internal combustion engine exhaust gases.
Marine Diesel Engine Catalytic Converter
Corrosion-resistant catalytic converter for inboard marine diesel engines meeting IMO Tier III NOx standards. HTS 8421.32.00.00 includes marine internal combustion engine exhaust purification apparatus.