Trailer Coupler Locks   x   >  

Keep your trailer safe from towaway theft with this universal coupler lock. Its tough frame fits in and around most 1-7/8", 2", and 2-5/16" ball couplers; and it has a bright red color and heavy-duty construction to deter theft.

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.

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.

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

Nickel-plated die-cast zinc trailer coupler lock guards against trailer towaway theft. Fits most 1-7/8", 2", and 2-5/16" ball diameters.

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.

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.

Can be keyed alike with other Blaylock push-button locks. Sturdy, rustproof lock discourages towaway trailer theft by covering your coupler's ball opening and fully surrounding the lip. Fits 2-5/16" ball couplers with flat or rolled lips.

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

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.

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.

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.

Kit includes a sturdy aluminum coupler lock to prevent towaway theft, an adjustable 1/4" diameter latch lock to ensure that your trailer won't be unhooked from the coupler, and a trailer hitch receiver lock that fits 2" hitches.

Lock secures most latch-style trailer couplers. Rubber-encased pin tumbler cylinder adjusts incrementally - from 9/16" to 2-3/4" - along notched, 1/4" diameter stainless steel shank.

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" hitch balls.

Guard against trailer towaway theft with this universal-fit coupler lock. Durable steel frame fits around 1-7/8", 2" and 2-5/16" ball couplers, providing both a visible and mechanical theft deterrent.

Protect your trailer from theft with this swivel-head coupler lock. Chrome-plated steel resists rust.