Best Mailbox Locks of 2026

"I replaced my old mailbox lock with this product and was impressed by how easily it installed and how much smoother it operates. The fit is great, and the included cams made it simple to get a snug, secure closure. I feel like my mailbox is a lot more secure now."

"I needed to swap out a couple of locks on different boxes, and these worked really well. Installation took only minutes, and the mechanism feels much higher quality than the originals. I like that the key can't be removed when unlocked—definitely a nice upgrade."

"After using this lock as part of my locksmithing class, I can say it functions just as intended. Fits a wide range of boxes and the process to switch out the old lock was straightforward. Looks like it was never replaced!"

"I've had this lock on my mailbox for a couple of years now, and it's held up really well. The installation was a breeze, and having different latch options made it simple to get the right fit. Definitely worth the money!"

"I needed to replace the mailbox lock at my rental property, and this product was almost identical to the original. I appreciated the range of latch sizes, which made it easy to find one that worked. Installation was quick and straightforward."

"I lost the key to our office's mailbox and bought this as a replacement. The lock looks very similar to the old one and works just as you'd expect. No one noticed the change, and swapping it out was super easy."

"After losing my mailbox key, I found this replacement lock incredibly simple to install—I just drilled out the old one and had the new one in place in minutes. It works perfectly for my needs."

"I needed a new lock after my key broke in the old one, and I’m impressed with how quick and easy the installation was. The lock feels much smoother and more secure than my previous one. It’s a cost-effective DIY fix compared to hiring a locksmith."

"What I like most about this lock is that it fit my Reliant mailbox and the rotating arm is more robust than my old lock. The key retention feature keeps my keys safe from dropping while I collect my mail. Installation was straightforward and the lock works well."

"I was able to swap out my mailbox lock with minimal hassle and basic tools. It even came with three keys, which saved me a trip to the post office. For the price, it’s a big win compared to what USPS wanted to charge!"

"Finding this lock was a relief because it fits the new mailbox models that aren’t supported at most hardware stores. The quality is great for the cost, though I did have to use my old retaining clip as the new one felt a bit flimsy."

"The lock is decent and works as intended, but be cautious when tightening the nut—the bolt threads are a little soft. Otherwise, it seems to hold up even in cold, wet weather."

"After installing this lock, I found the key slides in effortlessly and turns without any issues. I was worried about past reviews mentioning sticky keys, but this one worked flawlessly. I picked this model because of the dust cover, which is perfect since my mailbox is fully exposed. The installation was straightforward and a seamless replacement for my old USPS-L-1172C lock."

"I was able to install this lock easily after checking out a quick YouTube tutorial. Having all those extra parts included really came in handy, not just for my mailbox but potentially for neighbors too. Doing it myself after waiting for help made me feel empowered and satisfied with the price."

"The lock works as intended, though I had to reuse my old latch since the included ones didn’t fit perfectly. It wasn’t a big deal since they’re all interchangeable. If it stays in good shape, I’ll be happy with my purchase."

"Installing this lock was a breeze—I had to switch out a mailbox lock after losing the last key, and the extra tabs in the package made it fit perfectly. Everything was quick and simple."

"I went with this set after a hardware store option didn’t fit. Having all the different sizes in one kit was a lifesaver. Installation was super easy. Highly recommend for a hassle-free fix!"

"The lock does its job well, and I like that it comes with several keys. There’s a bit of wiggle room in the fit, so it’s not super tight in the door, but otherwise it’s a solid replacement."

"This cylinder was a perfect fit and installation was straightforward. However, I had to reuse the latch from my original lock since this product is just the cylinder and keys, not a complete lock."

"Great value for the price—installation was a breeze and it worked exactly as expected. I would absolutely purchase this replacement again."

"While this was an easy replacement for my old lock, just be aware that it doesn't come with the bolt, so you'll need to keep your original one. Otherwise, it's a solid option for the cost."

"I found this mailbox lock to be very easy to install and budget-friendly. After waiting over a year for my landlord to fix our mailbox, I was able to repair it myself. Much cheaper than having the post office fix it."

"After trying several of these locks, I've noticed that the quality isn't consistent. Some didn't work right out of the package, and a few only lasted a couple of weeks. I'd rather spend more for better durability."

"I needed a lock replacement and couldn't find the right one locally, but Amazon had it in stock. It required a small adjustment, but it fit and works fine for my mailbox."

"I saved over $30 and didn’t have to wait ten days for shipping. While these locks aren’t quite as solid as the OEM options, they’re definitely good enough for now."

"This kit had all the pieces I needed, and it worked perfectly where others from local hardware stores failed. Super happy with the fit and function!"

"I found the lock to be very well made and simple to install on my pole-mounted mailbox. Having three keys included was a nice bonus, and it's been working perfectly so far."

"Even though installation instructions weren't provided, I was still able to figure things out quickly. The lock fits flush with the mailbox door and feels solid, especially compared to another brand I tried. A small wrench was needed, but the process was straightforward."

"The lock operates smoothly and seems durable, though I wish the clip holding it in place felt a bit tighter. It was super easy to set up, and three keys were included. Overall, I'm happy with the purchase."