The catalytic converter is a key part of your vehicle’s exhaust system. It cleans up the engine’s exhaust before it leaves the tailpipe, and it is also one of the most commonly stolen car parts. This guide explains why converters are targeted, what to do if yours is stolen, and how to make your vehicle a harder target.
What a catalytic converter does
A catalytic converter sits underneath the vehicle, between the engine and the muffler. Inside, precious metals such as platinum, palladium and rhodium act as catalysts that convert harmful gases like carbon monoxide, nitrogen oxides and hydrocarbons into less harmful carbon dioxide and water vapor. Without a working converter, a vehicle pollutes far more, and it will not pass an emissions test.
Why catalytic converters are stolen
The same precious metals that make a converter work make it valuable as scrap. Metal prices change, but platinum, palladium and rhodium have all sold for high prices in recent years, and a converter can be sold to a scrap buyer for cash. Converters usually carry no serial number or other identifying mark, which makes stolen ones hard to trace.
Some vehicles are targeted more often than others:
- Trucks and SUVs, because their higher ground clearance makes the converter easier to reach.
- Hybrids, such as the Toyota Prius, because their converters tend to contain more precious metal.
How to tell if your converter was stolen
The most obvious sign is a very loud roar or rumble when you start the engine, because the exhaust is no longer routed through the converter. You may also notice the exhaust sounding different while driving, or a warning light on the dashboard.
What to do if your catalytic converter is stolen
- Report the theft to the police and keep the report number.
- Call your insurance company. Theft of parts is usually handled under comprehensive coverage, subject to your deductible. Check your own policy for details.
- Limit driving until it is repaired. Without a converter the exhaust is loud, the vehicle pollutes more, and exhaust leaks are a safety concern, especially if fumes can reach the cabin.
- Have the exhaust system inspected. Converters are often cut out, which can damage the pipes, hangers and sensors around them, so the repair is not always just the converter itself.
USA Collision repairs exhaust systems and replaces catalytic converters, and we can check the surrounding exhaust parts for damage at the same time. If you are filing a claim, we work directly with all insurance companies. See our exhaust repair page or request a free estimate.
What a replacement involves
The cost of replacing a stolen converter depends on the make and model of your vehicle and on any other exhaust parts that were damaged during the theft. Converters for hybrids and larger vehicles generally cost more. Because prices vary so much by vehicle, the best way to know your cost is an estimate based on your own vehicle.
How to protect your vehicle
- Anti-theft devices. Cages, shields and locks bolted over the converter make it harder and slower to remove, which deters many thieves.
- Parking. Park in a locked garage when you can. Otherwise, choose well-lit spaces close to building entrances or security cameras.
- Marking the converter. Engraving your VIN or license plate number on the converter makes it harder to sell and easier to identify if it is recovered. Some law enforcement agencies hold free or low-cost marking events.
- Insurance. Comprehensive coverage typically covers converter theft. If you live where thefts are common, review your policy and deductible.
The bottom line
Catalytic converters are targeted because of the precious metals inside them. A theft is expensive and disruptive, but quick action, a police report, your insurance and a proper repair will get you back on the road. If your converter has been stolen or your exhaust has been damaged, USA Collision can help. Call us at (602) 861-1919 or request a free estimate online.

