Police Alert: Catalytic Converter Theft Prevention

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Police Alert: Catalytic Converter Theft Prevention


We had 5 thefts of catalytic converters in the Montgomery Village/Gaithersburg District during the week of May 9th thru May 15th.  We may possibly see an increase in catalytic converter thefts due to the rise in precious metal prices.

Here is a list of preventable measures you can take to help prevent catalytic converter theft:

-Park in a well lit area or in your personal garage overnight.

-Park close to a building entrance or to the nearest access road when parking in a public lot.

-Having the converter welded to the car frame will make it more difficult to steal or using a catalytic converter shield.

-If you have a car alarm, calibrate it so that vibrations will set it off.

-Have your vehicle's VIN number engraved onto the Catalytic Converter in an effort to trace it after theft.

-Place security cameras around your driveway or garage.

Catalytic converters contain precious metals which is why they are being stolen. Those with a Toyota Prius are most likely to be victimized and the new F 450's or above are almost as valuable and easier to steal because its easier to go underneath and remove the catalytic converter. The way they are being stolen is by gaining access to underneath your vehicle by a car jack, tow lift or by just crawling underneath. The thieves then remove the catalytic converter by using a metal saw or by unbolting it.

If your vehicle sounds like its muffler is missing or has large roaring sounds while the engine is running, chances are the catalytic converter was stolen. If this happens, verify it is stolen and please contact the police to report the incident.


This alert was posted by the Montgomery County Police Department in Maryland.

Posted by

Roy Kelley, Associate Broker

Realty Group Referrals (Retired from RE/MAX Realty Group)

6 Montgomery Village Ave., Suite 200, Gaithersburg, MD 20879

Office:  301-258-7757 

Comments (22)

Michael Jacobs
Pasadena, CA
Los Angeles Pasadena 818.516.4393

Hello Roy - in addition to its many updates on missing pets, the social networking platform NextDoor has reports of porch pirate sightings and thefts of this type.  Be and stay aware.  

May 19, 2021 04:28 AM
Wayne Martin
Wayne M Martin - Chicago, IL
Real Estate Broker - Retired

Good morning Roy. What goes around comes around. This was a problem many years ago. Enjoy your day. 

May 19, 2021 04:36 AM
Brian England
Vacasa - Gilbert, AZ
MBA, GRI, REALTOR® Real Estate in East Valley AZ

If a Tesla is parked nearby, there is likely video footage of the thieves in action.

May 19, 2021 04:48 AM
Nina Hollander, Broker
Coldwell Banker Realty - Charlotte, NC
Your Greater Charlotte Realtor

Good morning, Roy... first those air bags; now the catalytic converters. What's next?

May 19, 2021 05:28 AM
Bill Salvatore - YVP Blog
Arizona Elite Properties - Chandler, AZ
Realtor - Valley of the Sun / golfArizona@cox.net


This is just NUTZ. Is it worth the effort?  I am always weighing this.  Happy hump day, enjoy your Wednesday and thanks for the post. Bill Salvatore 

May 19, 2021 05:45 AM
Ron and Alexandra Seigel
Napa Consultants - Carpinteria, CA
Luxury Real Estate Branding, Marketing & Strategy


It is always something or other, and I would love to go to your Casey Summer Market.  Happy Wednesday.  A

May 19, 2021 06:37 AM
Grant Schneider
Performance Development Strategies - Armonk, NY
Your Coach Helping You Create Successful Outcomes

Good morning Roy - wow, what is going on up there with midnight auto?

May 19, 2021 06:51 AM
Will Hamm
Hamm Homes - Aurora, CO
"Where There's a Will, There's a Way!"

Hello Roy, It is happening in the Denver area also, I am a little worry as I have a new driveway being pour this week and have to leave one of the cars outside on the street.


May 19, 2021 07:44 AM
Myrl Jeffcoat
Sacramento, CA
Greater Sacramento Realtor - Retired

I actually watched a security video of a guy here in my area, steal one within a couple minutes.  He was short and slight of build. He crawled right under the car, with a small saw and took it off so quickly.  

May 19, 2021 09:48 AM
Rocky Dickerson
Realty One Group - Las Vegas, NV
Superior Service!

Good morning Roy! I didn't realize you could weld them like that

May 19, 2021 09:51 AM
Bob "RealMan" Timm
Ward County Notary Services - Minot, ND
Owner of Ward Co Notary Services retired RE Broker

Even here in Minot North Dakota it's been all over the news and many shops around town are engraving them for people to help aid with recovery should they be stolen.

May 19, 2021 11:39 AM
Mark Don McInnes, Sandpoint-Idaho
Sandpoint Realty LLC - Sandpoint, ID
North Idaho Real Estate - 208-255.6227

I will date myself and bring up the days of siphoning gas due to high prices (almost a $1 btw).  Now parts being taken?  Geez.  Stay well.  mark

May 19, 2021 05:57 PM
Kathy Streib
Room Service Home Staging - Delray Beach, FL
Home Stager - Palm Beach County,FL -561-914-6224

Houston is a sea of trucks. Every morning I read about the thefts of catalytic converters...in broad daylight. 

May 21, 2021 06:16 PM
Roy Kelley
Realty Group Referrals - Gaithersburg, MD

Your feedback is always welcome and is very much appreciated.

May 24, 2021 09:02 AM