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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. It falls under tariff item 8421.32.00 for purifying exhaust gases from internal combustion engines.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8421.39.00Same rate: Free

If used in non-automotive gasoline engines

Other gas purification machinery

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Ensure the converter is certified for Canadian vehicle emissions standards

• Declare it as a three-way catalytic converter for gasoline engines

• Keep vehicle application and emissions compliance records for CBSA

Related Products under Tariff item 8421.32.00

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 tariff item 8421.32.00 as a particulate filter for purifying exhaust gases from internal combustion engines.

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. This combined particulate filter and catalytic converter falls under tariff item 8421.32.00 as it purifies exhaust gases from internal combustion engines.

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. It falls under tariff item 8421.32.00 as catalytic apparatus for purifying exhaust gases from internal combustion engines.

High-Flow Performance Catalytic Converter for Subaru WRX

A 400 CPI high-flow catalytic converter designed for Subaru WRX turbo engines, balancing emissions control with performance. This aftermarket converter falls under tariff item 8421.32.00 as it purifies exhaust gases from internal combustion engines.

Marine Diesel Engine Catalytic Converter

A corrosion-resistant catalytic converter for inboard marine diesel engines meeting IMO Tier III NOx standards. It falls under tariff item 8421.32.00 as it purifies exhaust gases from internal combustion engines, including marine applications.

Motorcycle Catalytic Converter with Lambda Sensor

A compact metallic substrate catalytic converter for motorcycles, often integrated with oxygen sensor ports for closed-loop control. It falls under tariff item 8421.32.00 as it filters and purifies exhaust gases from internal combustion engines in two-wheelers.