How to Protect Your Catalytic Converter from Theft

Apr 10, 2024

How to Protect Your Catalytic Converter from Theft | Sweven Plates (Supplier of 3D Gel Number Plates, 4D Number Plates, Replacement Number Plates, Tinted Number Plates, Carbon Number Plates)

Protecting your car’s catalytic converter from theft involves several strategies, ranging from careful parking to using security devices. Here’s a summary of effective measures you can take:

1. Choose Parking Locations Carefully

  • Garage Parking: If possible, park your car in a locked garage.
  • Strategic Street Parking: Park close to walls, fences, or other vehicles to limit space for thieves to get underneath.
  • Well-Lit Areas: Park in well-lit areas to deter nighttime thefts.

2. Enhance Home Security

  • Reinforced Garage Doors and Motion Lights: Invest in strong garage doors and install motion-triggered lights.
  • CCTV and Alarms: Install CCTV cameras with good low-light performance and driveway alarms that can alert you or the police immediately.
  • Landscaping: Keep fences, bushes, and walls low (under one meter) to prevent hiding spots and use gravel to make foot traffic noisier.

3. Install Locks, Guards, or Alarms on Your Vehicle

  • Locks and Guards: Fit a lock or guard specifically designed for catalytic converters. Brands like Toyota offer 'Catloc' for certain models.
  • Custom Solutions: Mechanics can install 'cat cages' or weld bolts to make removal more difficult.
  • Thatcham Category Alarms: Use tilt sensors to trigger an alarm if the car is lifted.

4. Mark Your Catalytic Converter

  • Serial Number Marking: Have a garage engrave a unique serial number on your converter.
  • Window Stickers: Display stickers indicating the converter is marked to deter thieves.

5. Report Suspicious Activity

  • Contact Police: Report any suspicious behavior to the police, using 101 for non-emergencies or an online form. Gather as much information as possible, including vehicle registrations.


  • Identifying a Catalytic Converter: It’s located under the car, attached to the exhaust pipe. Check your vehicle's make and model for exact location.
  • Vehicles with Catalytic Converters: All petrol and diesel vehicles have catalytic converters, while full electric vehicles do not.

Implementing these tips can significantly reduce the risk of catalytic converter theft and provide peace of mind.