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Our innovative adjustable clamping system accommodates multiple bolt diameters and engine mounting configurations. This versatile design eliminates the frustration of finding the right-sized lock for your specific outboard model. With measurements ranging from 25mm to 116mm, the NautiLuck adapts to virtually any outboard motor on the market today.


The NautiLuck’s high-security locking mechanism provides maximum protection against theft attempts. The precision-engineered key system offers unique key patterns, making unauthorized access virtually impossible. With tamper-resistant features and robust construction, this lock creates a formidable barrier against thieves targeting your valuable marine equipment.




“After having my previous outboard stolen from my dock last summer, I invested in the NautiLuck lock and couldn’t be happier.”
– Willen K., New York


Constructed from premium 316 stainless steel, the NautiLuck Outboard Motor Lock withstands harsh saltwater environments without corroding or deteriorating, ensuring years of reliable protection for your valuable marine equipment.

The adjustable clamping mechanism accommodates a wide range of bolt diameters from 25mm to 116mm, making it suitable for virtually any outboard motor model on the market today, eliminating compatibility concerns.

The robust construction and visible security presence serve as both a physical barrier and visual deterrent, significantly reducing the likelihood of theft attempts on your expensive outboard motor investment.


Integrated sponge linings within both lock halves absorb engine vibrations during operation, preventing rattling noises and reducing wear on both the lock and your engine’s mounting hardware.

The intuitive anti-clockwise key operation makes securing and releasing your outboard motor quick and easy, even in challenging marine conditions or limited visibility situations.

Precisely manufactured to exacting specifications, the NautiLuck lock provides consistent performance and security with a 302mm length and 42mm width that balances security with practical usability.


We understand the value of your time. That’s why our team is trained to respond promptly and efficiently, ensuring your queries and issues are addressed without unnecessary delays.
Frequently Asked Questions
The NautiLuck outboard lock has proven itself worthy through two tough seasons in harsh conditions. The corrosion resistance is impressive—looks almost new despite constant saltwater exposure.

I’ve owned boats for 30+ years and this is by far the best outboard lock I’ve ever purchased. Would highly recommend to any serious boater.

This lock is clearly designed by people who understand marine environments. The stainless steel quality is exceptional and the adjustable clamping mechanism is ingenious.
