Catalytic Converter with Rear O2 Sensor for 1998-2002 Honda Accord 2.3L
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Honda Accord 2.3L L4 1998 federal-emissions applications
- Honda Accord 2.3L L4 1999 federal-emissions applications
- Honda Accord 2.3L L4 2000 federal-emissions applications
- Honda Accord 2.3L L4 2001 federal-emissions applications
- Honda Accord 2.3L L4 2002 federal-emissions applications
Product Overview
A failed catalyst can rattle, restrict exhaust, or set efficiency codes, while a damaged downstream sensor may create separate heater or response faults. This package addresses both parts in the matching exhaust position. P0420 alone does not prove either component is bad: exhaust leaks, misfires, rich operation, oil consumption, and coolant contamination must be corrected first.
It is built for the point in the repair when symptoms have been checked and the replacement itself must match. Confirm 2.3L engine, federal emissions certification, flange pattern, converter location, oxygen-sensor port, and vehicle configuration.
Key Features & Performance
- Catalytic converter and downstream oxygen sensor in one package
- O2-sensor port for compatible Accord exhaust
- Replacement for a confirmed failed converter assembly
- Designed for 2.3L four-cylinder federal-emissions layouts
Common Uses
- Converter substrate rattles or is physically broken
- Exhaust restriction is confirmed by testing
- Catalyst efficiency remains low after engine faults are repaired
- Rear oxygen sensor is damaged during exhaust replacement
Technical Specifications
- Product Type: Catalytic Converter with Rear O2 Sensor
- Vehicle: Honda Accord
- Engine: 2.3L L4
- Years: 1998-2002
- Emissions Basis: Federal Applications Unless Specifically Certified
- Replacement Type: Aftermarket
Installation & Fitment
- Check the under-hood emissions label and state law
- Repair misfire, oil burning, coolant loss, or rich operation
- Soak fasteners and support the exhaust before removal
- Use new gaskets and route the sensor wire away from heat
- Check for leaks and complete the emissions readiness cycle
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Confirm 2.3L engine, federal emissions certification, flange pattern, converter location, oxygen-sensor port, and vehicle configuration.
Frequently Asked Questions
Q: Is this legal for California vehicles? A: Do not use unless the converter is specifically approved for that exact California application and executive-order requirement.
Q: Will a new converter fix P0420? A: Only when the converter is the cause and no upstream fault is damaging or misleading it.
Q: Does this fit V6 Accords? A: No. This listing is for compatible 2.3L four-cylinder layouts.
Part Summary
keywords: 1998 Honda Accord catalytic converter, Accord 2.3 P0420 repair, rear O2 sensor converter package, 1998-2002 Accord federal catalyst, Honda Accord exhaust replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.