How Long Does A Catalytic Converter Last (And Why)?

How Long Does A Catalytic Converter Last (And Why)?

Exact Answer: Up to 10 years

The catalytic converter can stay in good condition for around 10 years. The catalytic converter is great for converting harmful or pollutant gases into less harmful gases. The catalytic converter can get clogged or damaged due to many issues. The catalytic converter gets damaged due to excess heat.

There are many signs that would come when the catalytic converter is about to get damaged. If the vehicle has excessive heat under it, then it may cause the catalytic converter to go bad very early. The exhaust system of the vehicle is also responsible for the life span of the catalytic converter.

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How Long Does A Catalytic Converter Last?

Catalytic ConverterTime
In years10 years
In months120 months

The person needs to replace the catalytic converter every 10 years. The maintenance of the vehicle would also affect the shelf life of the catalytic converter. The catalytic converter is very important for the vehicle. Without a catalytic converter, the vehicle would produce harmful gases that would be dangerous for the people.

The catalytic converter is good for reducing the emissions from cars. The parts of the vehicles would be very dangerous for all the people as it would release harmful gases which would produce air pollution. To reduce air pollution, the person is supposed to use the catalytic converter in the vehicle.

Everyone should replace the catalytic converter if they see the catalytic converter is not able to convert the harmful pollutant or gas to emissions that are less harmful. The type of catalytic converter used would also affect the life span of the catalytic converter.

There is some catalytic converter which is of extremely good quality and can stay in good condition for around 10 years or more. If the person decides to use low quality catalytic converter, then it would not stay in good condition for more than 5 to 6 years. The manufacturing of the catalytic converter would also affect the life span of the converter.

All the types of catalytic converters would be able to convert extremely harmful chemicals such as carbon monoxide into carbon dioxide which is very less harmful.

Why Does A Catalytic Converter Last For This Long?

The catalytic converter would not last for the whole life. The proper functioning of the catalytic converter would happen if the temperature is as per the requirement. The temperature of the vehicle should be between 400 degrees Celsius to 752 degrees Fahrenheit. The metal platinum is used for making the catalytic converter in many cases.

Some catalytic converters may be made up of palladium or rhodium. The type of catalytic converter would also affect the lifespan of the converter. The oxidation catalyst is useful for reducing the fuel hydrocarbon and carbon monoxide within the exhaust which is very harmful to the environment.

The oxidation catalyst would not be able to reduce all the harmful pollutants present in the environment. The dual-bed catalyst would be more powerful than the oxidation catalyst. The use of secondary air injection has made the dual-bed catalyst converter more effective than the oxidation catalytic.

The three-way catalytic converter is a good choice for economic reasons. The main work of the catalytic converter is to reduce harmful pollutants or gases with the help of a quick chemical process. After 5 to 10 years, the working structure of the catalytic converter would become slow.

Then the person would have to replace the catalytic converter to avoid air pollution or other diseases due to harmful gases. Everyone should try to get the best catalytic converter for their vehicle as catalytic converters are important parts of automobiles. The top-quality converters can be a little more expensive as they work in a better manner.


The catalytic converter would last for around 10 years if the person maintains it properly. Everyone should maintain the condition of the vehicle to make the catalytic converter last longer. There are different companies producing catalytic converters of different qualities.

Everyone should get the catalytic converter depending on their vehicle’s requirements and model. Before purchasing the catalytic converter, everyone should try to do proper research about their working structure and guarantee. The manufacturing companies would give all the information about the catalytic converter and how long it would last.


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Hi! I'm Nidhi.

Here at the EHL, it's all about delicious, easy recipes for casual entertaining. So come and join me at the beach, relax and enjoy the food.

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