Heavy Duty 5th Wheel King Pin Lock

So far the king pin lock has been great reasonably priced, very durable and easy to use.

This king pin lock feels solid and well‑built, with the heavy alloy steel giving it a sturdy weight and a secure fit over the pin. The bright red coating makes it easy to spot and adds some weather protection. Sliding it on and locking it takes only a moment, and once in place it sits tight without any wiggle. The barrel‑style lock feels reliable and comes with two keys, which is helpful for backup.

It fully covers the king pin, so it’s a good deterrent for anyone trying to hitch up and drive off. The powder‑coated finish holds up well outdoors, and the design doesn’t require any extra mounting or tools. For RVs or trailers that sit unattended, this lock offers strong peace of mind and straightforward use.

Fits great, but if you have a white friction disk on. Take it off before you try to install the lock.

This king pin lock feels very solid and heavy duty. The steel construction and powder coated finish make it feel like it can handle outdoor use well. It is also simple to put on and take off, which is important because nobody wants a lock that is a hassle every time. The bright color is nice too because it is easy to see and can help deter theft. It is not the cheapest lock, but it feels strong and gives extra peace of mind for a fifth wheel trailer.

Overall, this heavy-duty fifth-wheel kingpin lock is quite practical—especially for those who own a fifth-wheel trailer, RV, or other towed equipment. Having an extra layer of anti-theft protection provides greater peace of mind when the vehicle is parked. Its bright red exterior is highly conspicuous; once installed, it is immediately visible to others, serving as both a visual reminder and a deterrent. The design is relatively simple, requiring no complex installation; you simply slip it over the kingpin and lock it in place, making it hassle-free for daily use.