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. Can be keyed alike to match other etrailer locks.

Use this sturdy, rustproof aluminum coupler lock with high-visibility yellow color to help prevent trailer towaway theft. Fits trigger-style, 1-7/8" and 2" ball couplers with flat lips. Can be keyed alike to match other etrailer locks.

Use this sturdy, rustproof aluminum coupler lock with a sleek silver powder coat to help prevent trailer towaway theft. Fits standard, 2-5/16" ball couplers with flat lips. Can be keyed alike to match other etrailer locks.

Use this sturdy, rustproof aluminum coupler lock with a sleek silver powder coat to help prevent trailer towaway theft. Fits standard 1-7/8" and 2" ball couplers with flat lips. Can be keyed alike to match other etrailer locks.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with no lips. Resists picking, cutting, drilling, and freezing. Tumbler offers nearly 1 million possible key codes.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with flat lips. Resists picking, cutting, drilling, and freezing. Tumbler offers nearly 1 million possible key codes.

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.

Lockset includes a sturdy aluminum coupler lock to prevent towaway theft, a 1/4" diameter latch lock to ensure that your trailer won't be unhooked from the coupler, and a 2" trailer hitch receiver lock. Keys work with all three locks.

Keep your unattended trailer safe from theft with this universal coupler lock that features a dual-ratchet locking system. Die-cast hardened steel frame fits 1-7/8", 2", and 2-5/16" ball couplers.

Heavy-duty, solid steel coupler lock fully surrounds ball coupler to deter theft of your parked trailer. Powder coating resists rust and corrosion. Threaded ball easily engages ball socket. Includes 2" and 2-5/16" balls and 2 keys.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2" ball couplers with flat lips. Resists picking, cutting, drilling, and freezing. Tumbler offers nearly 1 million possible key codes.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with flat lips and a finger latch. Resists picking, cutting, and freezing. Tumbler offers nearly 1 million possible key codes.

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

Keep your trailer safe from theft with this universal coupler lock that features a dual-ratchet locking system. Its tough frame fits 1-7/8", 2", and 2-5/16" ball couplers.

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 trigger-, latch-, or handwheel-style coupler. Includes stainless steel padlock.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits square 2-5/16" ball couplers. Resists picking, cutting, drilling, and freezing. Tumbler offers nearly 1 million possible key codes.

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2" ball couplers with flat lips. Resists picking, cutting, drilling, and freezing. Tumbler offers nearly 1 million possible key codes.

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

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.

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.

This universal coupler lock protects your trailer from towaway theft. Lock codes to your vehicle's ignition key, and it's nearly impossible to pick or bump. Included lock, base plate with ball, and shackle fit most coupler and latch styles.

This coupler lock kit helps prevent your trailer and gear from being stolen when you're not using it. Simply insert the ball into your coupler, connect the shackle, and lock it down. Also includes locking hitch pin and padlock-style coupler lock.