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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If complete marine propulsion system component
Integrated marine engine parts may classify under Chapter 84/84 marine machinery.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include IMO Tier III or EPA Tier 4 Marine certification
• Specify marine-grade stainless steel construction
• Document vibration and saltwater resistance testing
Related Products 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.