The catalytic converter is one of the most important — and most expensive — emissions components on your Toyota Camry. It converts harmful exhaust gases (hydrocarbons, carbon monoxide, nitrogen oxides) into less harmful compounds before they exit the tailpipe. The Toyota Camry uses one catalytic converter on four-cylinder models; two catalytic converters (Bank 1 and Bank 2) on V6 models. When the catalytic converter fails or is stolen, the check engine light activates, emissions tests fail, and performance degrades. This guide covers every generation of Toyota Camry catalytic converters, current replacement costs, and how to find the right used unit.
Signs Your Toyota Camry Catalytic Converter Is Failing
Catalytic converter failure on the Toyota Camry typically triggers specific symptoms and OBD-II codes:
- P0420 or P0430 check engine code — P0420 indicates Bank 1 (driver's side on V6) converter efficiency is below the threshold. P0430 indicates Bank 2 (passenger side). Both codes simultaneously on a V6 often means the rear oxygen sensors have failed, not both converters — test the O2 sensors first.
- Failed emissions test — Both P0420 and P0430 cause emissions test failures. V6 Camry owners sometimes face a double repair bill if both converters require replacement.
- Sulfur smell on startup — A distinct sulfur or rotten egg smell on cold starts — especially pronounced in the first 2–3 minutes of operation — indicates incomplete conversion in a degrading catalytic converter.
- Heat soak rattling — The Camry's catalytic converter heat shield tends to rust and separate on 2002–2011 models. The shield produces a metallic rattle over bumps or on startup that is sometimes misdiagnosed as an engine noise.
- Power loss on V6 models — A clogged V6 Camry catalytic converter causes noticeable power loss above 3,500 RPM. The 3.5L 2GR-FE is a high-revving engine that is particularly affected by exhaust backpressure.
Catalytic Converter Theft Warning
The Toyota Camry V6 (especially 2002–2011 models) is a high-theft target due to the two palladium-rich converters on the 3.0L and 3.3L V6 engines. Four-cylinder Camrys are less frequently targeted but still vulnerable. Toyota's ground clearance makes converter access relatively easy for thieves. Anti-theft shields are available for most Camry generations and are strongly recommended for vehicles parked outdoors.
Toyota Camry Catalytic Converter Replacement Cost
Catalytic converter replacement is one of the more expensive repair jobs due to the precious metals inside (platinum, palladium, rhodium):
| Option | Parts Cost | Total with Labor |
|---|---|---|
| Used / Salvage (OEM) | $224–$344 | $304–$494 |
| Aftermarket (non-CARB) | $110–$240 | $190–$390 |
| New OEM | $230–$480 | $310–$600 |
| Dealer Installed | Included | $500–$950 |
Current market average for a tested used Toyota Camry catalytic converter: $236.
2002–2006 Toyota Camry Catalytic Converter (6th Gen, 2AZ-FE / 3MZ-FE V6)
The 6th gen four-cylinder (2AZ-FE) has one converter positioned close to the manifold. The V6 (3MZ-FE) has two separate converters, one per bank. The 2AZ-FE converter is very affordable used. V6 converters from this era are frequently stolen — confirm the vehicle history before buying a used V6 Camry to ensure the OEM converters are still installed.
Find a used 2002–2006 Toyota Camry catalytic converter
2007–2011 Toyota Camry Catalytic Converter (7th Gen, 2AZ-FE / 2GR-FE V6)
The 7th gen introduced the 2GR-FE V6 with an updated exhaust system and two converters. The 2AZ-FE catalytic converter is nearly identical to the 6th gen unit. The 2GR-FE converters are higher-value salvage items and are widely available. Verify Bank 1 vs Bank 2 positioning when ordering — they are mirror images but not identical.
Find a used 2007–2011 Toyota Camry catalytic converter
2012–2017 Toyota Camry Catalytic Converter (8th Gen, 2AR-FE / 2GR-FE)
The 8th gen four-cylinder moved to the 2AR-FE, which uses a different catalytic converter than the 2AZ-FE. The V6 continued with the 2GR-FE and carries over the same converter design. These are the most abundant Camrys in salvage yards today, making used catalytic converters very accessible.
Find a used 2012–2017 Toyota Camry catalytic converter
Used vs Aftermarket — What to Know
Toyota Camry ECUs — especially on V6 models — are sensitive to catalytic converter efficiency. Cheap aftermarket converters frequently fail the P0420/P0430 threshold test within one to two years. If both Bank 1 and Bank 2 codes appear simultaneously on a V6 Camry, the oxygen sensors should be tested first before condemning both converters. A quality used OEM converter from a low-mileage Camry is the most reliable fix for both the four-cylinder and V6.
OBD-II Codes — What They Mean
The most common catalytic converter codes on the Toyota Camry are P0420 (Bank 1 efficiency below threshold) and P0430 (Bank 2 — V6 models only). These codes indicate the catalytic converter efficiency is below the threshold the ECU expects based on oxygen sensor readings before and after the converter. A P0420 or P0430 code does not always mean the catalytic converter is bad — a failing upstream or downstream oxygen sensor produces the same codes. Always test both oxygen sensors before replacing the catalytic converter.
Where to Find a Used Toyota Camry Catalytic Converter
Used OEM catalytic converters from low-mileage donor vehicles still have substantial precious metal content and conversion efficiency. We aggregate inventory from verified suppliers with fitment confirmed by year and engine.
Browse all Toyota Camry catalytic converters in stock
Installation Notes
Catalytic converter replacement on the Toyota Camry is a moderate DIY job:
- Allow the exhaust to cool completely before working — catalytic converters retain heat for hours.
- Spray penetrating oil on all exhaust flange bolts and O2 sensor bungs 24 hours before removal.
- Remove the upstream and downstream oxygen sensors before unbolting the converter.
- Unbolt the exhaust flanges — typically 2 bolts per flange (12mm–15mm).
- Install the replacement, torque flange bolts to spec, reinstall oxygen sensors.
- Clear the OBD-II codes and drive two complete warm-up cycles to confirm the check engine light does not return.
Estimated time: 60–90 minutes for four-cylinder. V6 Bank 2 converter access requires working from under the vehicle — allow 90–120 minutes.
Frequently Asked Questions
My Camry V6 has both P0420 and P0430 — do I need to replace both converters?
Not necessarily. When both codes appear at the same time, the most common cause is failed downstream oxygen sensors rather than two failed converters. Replace and test the downstream O2 sensors first. If P0420 and P0430 persist after confirmed-good oxygen sensors, then the converters need replacement.
How much does a Toyota Camry V6 catalytic converter replacement cost?
For a V6 Camry requiring both converters, expect $600–$1,400 at an independent shop using remanufactured units, or $900–$1,800 at a dealer. DIY with quality used OEM converters typically runs $300–$600 total for both.
Can I use a 2004 Camry catalytic converter in a 2009 Camry with the same 2AZ-FE engine?
Within the 2AZ-FE family (2002–2011), catalytic converters are often interchangeable, but connector style for the oxygen sensors and physical mounting can vary by year. Always verify the part number or compare directly before purchasing.
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