Sea-Dog 751030-1 Two-Piece Trailer Coupler Lock, Brass Plated Zinc

The Sea-Dog 751030-1 Two-Piece Coupler Lock is built for theft deterrence on a boat or utility trailer, adding a level of security that also prevents accidental uncoupling while in transit. The two-piece design gives better access in hard-to-reach places compared to a single-body lock, making it easier to fit and remove even in tight mounting locations. It fits most coupler sizes and comes with two keys so a spare is always on hand. The lock body is constructed of corrosion resistant brass plated zinc, giving it durability for outdoor and marine trailer use where exposure to moisture and road grime is constant.

Beyond theft prevention, this coupler lock provides peace of mind during towing by helping keep the coupler securely engaged, reducing the risk of the trailer separating from the tow vehicle unintentionally. Its compact dimensions allow it to work with common coupler configurations without adding excessive bulk.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 751030-1
• Material: Brass Plated Zinc
• Design: Two-Piece
• Included Components: Two Keys
• Dimension A: 1-11/16 inches
• Dimension B: 1-13/16 inches
• Dimension C: 3/4 inch
• Dimension D: 9/16 inch
• Weight: 0.34 pounds
• UPC: 035514751063
• Category: Trailer Locks and Accessories

Frequently Asked Questions

What is the Sea-Dog 751030-1 used for? It is a two-piece coupler lock designed for theft deterrence on a trailer coupler, while also adding a level of security that helps prevent accidental uncoupling while in transit.

How many keys come with the 751030-1 coupler lock? Two keys are included with the Sea-Dog 751030-1, so you have a spare on hand.

What material is the coupler lock made of? The Sea-Dog 751030-1 is constructed of corrosion resistant brass plated zinc, which holds up well to outdoor and marine trailer exposure.

Will this lock fit my trailer coupler? The 751030-1 fits most coupler sizes thanks to its two-piece design, which also gives better access in hard-to-reach mounting spots.

Why is the two-piece design an advantage over a one-piece coupler lock? Splitting the lock into two pieces makes it easier to install and access in tight or hard-to-reach areas around the coupler compared to a single solid-body lock.

What are the dimensions of the Sea-Dog 751030-1? The lock measures 1-11/16 inches (A), 1-13/16 inches (B), 3/4 inch (C), and 9/16 inch (D) across its key mounting points.

How much does the 751030-1 coupler lock weigh? The Sea-Dog 751030-1 weighs 0.34 pounds.

Is the 751030-1 rust resistant? Yes, its brass plated zinc construction is corrosion resistant, making it suitable for boat trailer and marine towing environments.

Does the coupler lock help prevent accidental uncoupling? Yes, in addition to theft deterrence, the Sea-Dog 751030-1 adds security that helps prevent the coupler from accidentally releasing while towing.

What is the UPC for the Sea-Dog 751030-1 coupler lock? The UPC for the Sea-Dog 751030-1 Two-Piece Coupler Lock is 035514751063.