Trailer Coupler Locks   x   >  

Use this sturdy, rustproof aluminum coupler lock with high-visibility yellow color to help prevent trailer towaway theft. Fits trigger-style, 2-5/16" ball couplers with flat lips.

Trailer Coupler lock for lever style coupler requiring 3-3/8" span - typically seen on hydraulic actuators.

Use this sturdy, rustproof aluminum coupler lock with sleek silver color to help prevent trailer towaway theft. Fits trigger-style 1-7/8" and 2" ball couplers with rolled lips.

Use this sturdy, rustproof aluminum coupler lock with sleek silver color to help prevent trailer towaway theft. Fits trigger-style, 2-5/16" ball couplers with flat lips.

Use this sturdy, rustproof aluminum coupler lock with sleek silver color to help prevent trailer towaway theft. Fits trigger-style 1-7/8" and 2" ball couplers with rolled lips.

This swivel-head, side-entry lock fits a wide variety of lever-style couplers and has five locking positions from 1/2" to 2-1/2". Features a 9/32" diameter pin, all-weather grips, and a weatherproof sealed lock housing.

Whether your trailer is being towed or being stowed, this rugged lock combo deters trailer theft. Heavy-duty steel coupler lock fully surrounds coupler when trailer is unhitched. Keyed-alike latch lock secures coupler to tow vehicle during transit.

Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a Bulldog Collar-Lok coupler. Includes stainless steel padlock.

Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a trigger-style, latch-style, or handwheel-style coupler. Padlock sold separately.

Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a Bulldog Collar-Lok coupler. Padlock sold separately.

Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a trigger-, latch-, or handwheel-style coupler. Includes stainless steel padlock.

Can be keyed alike with other Blaylock push-button locks. Sturdy, rustproof aluminum lock discourages towaway trailer theft by fully enclosing your Bulldog Collar-Lok coupler that fits 2-5/16" hitch balls.

Designed for a coupler that welds to the bottom of your trailer's A-frame, this cast iron lock blocks the coupler's ball socket and surrounds its lip to deter theft. Rotating-disc-tumbler lock is bump-proof.

Convenient kit includes a flush-design, stainless steel trailer hitch receiver lock with an easy-to-use swivel head and a stainless steel latch lock for your trailer's coupler. Fits 2" x 2" hitches.

Combo pack offers theft protection for your trailer with the butterfly-style coupler lock and secures a ball mount or hitch accessory with the receiver lock. Chrome-plated steel resists rust. Ball-bearing locking mechanisms provide extra security.

Guard against trailer theft with this durable steel, butterfly-style coupler lock. Works with most ball couplers that have trigger-style latches. Chrome plating resists corrosion, and the unique ball-bearing locking mechanism provides extra security.