Buyers Products Company drawbar lunette lock — BDL253 zinc-plated insert for 2-1/2"–3" rings, accepts 1/2" padlock, corrosion-resi

The Buyers Products BDL253 is a zinc-plated drawbar lock that inserts into a 2-1/2 to 3 inch lunette eye to block trailer coupling and accept a padlock up to 1/2 inch.

When trailers sit idle on job sites, farms, or in storage lots, an open lunette eye is an easy target for unauthorized hookups and roll-away incidents. The BDL253 provides a straightforward mechanical barrier: a solid insert that fills the lunette ring, resists outdoor corrosion with zinc plating, and lets you secure the insert with a standard padlock for added deterrence. Designed for heavy-use towing gear, this insert prioritizes simple installation, broad compatibility, and durable construction.

How does the BDL253 prevent unauthorized hook-ups?

The lock physically occupies the lunette eye, removing the space required for a pintle hook to engage. By blocking access to the coupling point and allowing the insert to be padlocked, the device makes it far more difficult for casual thieves or unauthorized users to attach a towing vehicle.

• Fills the lunette eye so a pintle hook cannot seat.
• Accepts padlocks up to 1/2 inch diameter for added security.
• Quick insert/remove design for routine use and inspections.

Will this fit my trailer’s lunette eye?

The BDL253 is sized for standard lunette rings measuring between 2-1/2 and 3 inches, which covers most agricultural, construction, and utility trailers. Its dimensions were chosen to be a universal fit across common industry lunette standards.

• Compatible with 2-1/2" to 3" lunette eyes used on heavy-duty trailers.
• Works with both commercial and farm equipment lunette designs.
• Simple fit—no tools required for typical installation and removal.

How durable is the material for outdoor storage?

Constructed from zinc-plated steel, the BDL253 is built to stand up to weather exposure, jobsite conditions, and seasonal storage without rapid corrosion. The plating offers a protective barrier against rust, extending the usable life of the insert in outdoor environments.

• Zinc plating resists rust on exposed surfaces.
• Steel core provides impact and wear resistance.
• Designed for year-round use in common towing environments.

Which padlocks work with this drawbar insert?

The integrated hole accepts most padlocks with shackle diameters up to 1/2 inch, giving you freedom to choose weatherproof or high-security locks based on your needs. Select a marine-grade or laminated steel padlock for tougher environments.

• Accepts padlocks with up to 1/2" shackle diameter.
• Compatible with weatherproof and high-security padlocks.
• Allows customization of security level by padlock choice.

Who is this for: The BDL253 is intended for contractors, fleet managers, farmers, landscapers, and any trailer owner with a lunette-equipped trailer who needs a low-complexity, robust theft deterrent. If you want a no-frills mechanical insert that fits standard 2-1/2"–3" lunette eyes, resists outdoor corrosion, and works with widely available padlocks, this Buyers Products drawbar lock is a practical, industry-grade option.