- Extruded Tempered Aluminum Body
- Double Nickel Chrome Finish Lock Housing
- Double-Sided Automotive Style Key Makes For Easy Insertion And Removal
- Shuttered Key Opening Prevents Clogging And Freezing
Don’t let your trailer get stolen. Coupler locks from CT Johnson are designed to prevent attaching to an unattended trailer. All coupler locks will lock your trailer to the hitch ball when in use. Fits most couplers requiring a 2” span (e.g. Attwood surge brake). Features a patented pickproof screw-and-lock security with a 5-pin tumbler and 2-keys.
Before You Order
Check that your coupler is a lip-engaging trigger style and uses the listed 2-inch or 2-5/16-inch size; confirm the lock body dimensions before purchase.
Frequently Asked Questions
Which coupler styles are listed?
The source specifies 2-inch and 2-5/16-inch lip-engaging trigger-style couplers.
What material and finish are specified?
The specifications list aluminum with an Arctic Silver powder-coated finish.

