The Catlock®

Catalytic converter anti-theft device


Protect your vehicle from catalytic converter theft, a serious crime affecting vehicles across the United States, particularly trucks, vans and SUVs.

The Catlock® locks your catalytic converter to your vehicle’s frame with an aircraft quality steel cable, preventing thieves from stealing the converter. Lock up your catalytic converter with The Catlock®, your catalytic converter will be safe or your money back, guaranteed. Order yours today!


NBC news featuring The Catlock®

Catlock - Engineered for maximum protection against catalytic converter theft.
Patent Pending
(The Catlock® locked to a catalytic converter)

+ Features:

  • Adjustable to fit 99% of converters (see FAQ’s on Product page for exceptions)
  • Prevents theft by permanently locking catalytic converter to vehicle frame
  • Will not affect vehicle’s operation, overheat or crush the converter
  • D.I.Y. easy installation in about 10 minutes with no special tools
  • Powder-coated for protection against rust and the elements
  • Ships in 1 business day in a small, 4 lb. package
  • Strong visual deterrent to thieves
  • Money-back guarantee
  • No drilling or welding
  • Made in the USA
Phoenix Chamber of Commerce