- DeadBolt Coupler Lock With Housing And Knob Cones For Flush Locking Design
- Double Nickel Chrome Finish Lock Housing
- Zinc Dichromax Pin Finish
- Patented, Pickproof Screw-And-Lock Security
- Helps Prevent Attaching To An Unattended Trailer
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
Measure the surge brake-style coupler opening and confirm it is 3-3/8 inches; compare the flush design and black-with-silver rod finish with your required lock setup.
Frequently Asked Questions
Which coupler opening is specified?
The source lists 3-3/8-inch openings on surge brake-style couplers.
What color is the lock rod?
The specifications describe a black rod with a silver finish detail.





