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Coupler Locks

Protect just about any trailer from theft with our universal coupler locks, which use a unique “ball” and shackle to fit a variety of coupler sizes and styles.


Due to the extremely high volume of orders we regularly experience, please allow up to 12 business days for your EcoHitch branded products and up to 8 business days for your Torklift branded products to ship out and to receive your tracking number. All in-stock Torklift products ship within 1-3 business days. Stock levels are not shared on our website. If you order multiple products, they may ship from different warehouses in separate shipments. Please allow 30 days before presale items ship. Due to COVID-19, all freight carriers have notified us shipping times may take an additional 1-3 business days for your product to reach you. This notice is effective 4.28.20.
COVID-19 Update (October 21st, 2020)


Free shipping on orders of $63 or more to the lower 48 states.

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Diversi-Tech Corp is the manufacturer of the nation’s #1 best selling trailer coupler lock, the DT-25013 Maximum Security Coupler Lock.

  • Patent pending multi-step Uni-ball™ fits all 1 7/8″, 2″ and 2 5/16″ couplers
  • Patent pending horizontal bend in shackle provides a secure forward facing snug fit on all coupler types
  • Super hardened chrome plated 5/8″ shackle
  • New larger/stronger corrosion resistant nickel plated housing
  • New anti-drill pin for added security
  • Patent pending dual action locked and bolt blocked locking system™
  • DT Maximum Security Coupler Locks Now Includes 4 Keys

Also available are the following:

  • Universal design protects most trailers from being towed away
  • Multistep Uni-ball fits into any size ball coupler
  • Trigger, pin, thumb and wraparound yoke latches
  • Tube key lock cylinder provides better security than standard key mechanisms
  • Peace of mind when your trailer is not connected to your truck 
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