03 4Runner 286K only been serviced twice but I take great care of it. Catalytic converters went out causing miss fires has been my biggest problem.
Pros: reliable, long lasting
Cons: catalytic converter failure
Mileage: 286000 km
Reviews of OEM Toyota catalytic converter
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OEM Toyota
Japan
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The 2AZ-FE 4 cylinder comes to mind. It came with defective rings and pistons that make it prone to burning too much oil. This in turn also makes it have an early failure of the catalytic converter due to the oil clogging it.
Pros: Mobil 1 full synthetic oil
Cons: burning too much oil
Vehicle:
Toyota Camry
Mileage: 200000 km
I replaced the cats at 190k at 225k I replaced all 4 brake calipers it didn’t need the rears but since I was doing the front I did them all and replaced the rear axle seals at the same time.
Pros: rock solid
Vehicle:
Toyota FJ Cruiser
Mileage: 362102 km
I have a 2003 Camry with 220k miles on it. My front cat was throwing a P0420 code (what the hell has it been smoking??) for the better part of the year and I finally changed it last month because my emissions inspection was due.
It cost me about $975 installed, but the most shocking thing to me was that my overall gas mileage went from 25 to 30.
Pros: gas mileage improved
Vehicle:
Toyota Camry
Mileage: 354055 km
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What we know about OEM Toyota catalytic converter
The brand is registered in Japan.
In March 2026, PartReview does not yet have a formed opinion of OEM Toyota catalytic converter. You can help by adding a review for OEM Toyota catalytic converter.
Currently there are 4 reviews and 12 votes. Average rating — 4 out of 5. Vote balance: 9 up, 3 down.
Users also evaluated the qualities of OEM Toyota catalytic converter:
- Power - car struggles at higher speeds, making passing difficult - rated positively. 5 points out of 5.
- Rattle - metallic rattling from the exhaust, indicating a broken core - no rating yet
- Smell - strong sulfur/rotten-egg odor, pointing to catalyst trouble - rated negatively. 1 point out of 5.
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