CURT 23255 5th Wheel Trailer Lock for 2-In King Pin - Secure

In this review the CURT 23255 5th Wheel Trailer Lock is assessed as a focused security accessory for owners of 5th wheel trailers with 2-in king pins. The bottom line: it is for trailer owners who want a straightforward, heavy-duty deterrent that prevents a trailer from being coupled and towed away. The lock's combination of a high-strength steel pin, aluminum bracket and a watertight dust cap delivers reliable protection and low maintenance, so anyone needing simple, durable theft prevention will find this unit worth considering.

Key Features

• Dependable security: A high-strength steel pin and aluminum bracket work together to block the king pin and resist casual tampering.
• Easy to operate: The lock slips over the king pin and secures quickly so one person can install or remove it without tools.
• Versatile fit: The 2-in diameter opening fits virtually any standard 2-in king pin for broad compatibility across trailers.
• Watertight protection: An included dust cap helps keep the internal components dry and protected from road grime and weather.
• Two keys included: Two keys let owners keep a spare key in a separate location or share access with a trusted person.

Who It's For

This lock is aimed at owners of 5th wheel trailers who want a no-fuss, mechanical solution to deter theft while parked or stored. It fits users who value a robust physical barrier over electronic tracking and who need something that installs quickly on a standard 2-in king pin.

It is not for users who need remote monitoring, alarm integration or locking for non-standard king pins. Those seeking an alarmed or GPS-equipped system should look at electronic security options instead of this purely mechanical lock.

Pros & Cons

Pros

• Solid construction provides real peace of mind against opportunistic theft.
• Simple installation and removal make daily use practical for one person.
• Watertight dust cap and included spare key increase longevity and convenience.

Cons

• As a mechanical lock, it does not offer electronic alerts or tracking if the trailer is targeted.

Specifications

Brand	CURT
Model	23255
Application	5th wheel trailer king pin
King pin opening	2 in diameter
Materials	High-strength steel pin and aluminum bracket
Includes	Watertight dust cap and two keys

Our Verdict

The CURT 23255 is a solid, value-minded mechanical lock for 5th wheel trailer owners who need a rugged, easy-to-use deterrent. It suits anyone with a standard 2-in king pin who prefers dependable physical security and low maintenance over electronic features, making it a practical purchase for most recreational and utility trailer owners.

Frequently Asked Questions

Will this lock fit my 5th wheel king pin?
The lock is designed for a 2-in diameter king pin and fits virtually any standard 2-in king pin.

Does it include keys and weather protection?
Yes, it ships with two keys and a watertight dust cap to protect internal components from the elements.

Can it prevent all theft attempts?
It provides a strong mechanical deterrent against casual towing and opportunistic theft, but it does not offer electronic alerts or tracking.