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Prime-Line MP4526 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Clockwise with 90º Rotation, Nickel Finish (1 Set)

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$6.47

$ 2 .99 $2.99

In Stock

About this item

  • REPLACEMENT LOCK – This multipurpose Prime-Line replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. Features 5 cams and an NA14 key
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with several brands of mailboxes, including: Auth-Electric, Bommer, Cutler-Federal, Florence and Superior.
  • INCLUDES – Replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys.
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the clockwise direction and features a dust cover and a retaining clip


The Prime-Line MP4526 Diecast 5 Pin National Keyway Mailbox Lock and Key Set makes it easy to secure your mail. It is designed for use with mailboxes manufactured by Auth-Electric, Bommer, Cutler-Federal, Florence and Superior. The mailbox key set comes complete with a 5 pin mailbox lock, 5 cams, and 2 keys. These multi-cam assortments eliminate the need for individual locks. The mailbox key lock set is constructed of diecast, brass, steel, and stamped steel materials. It features a spring steel locking clip. The steel components come finished in a corrosion-resistant zinc-plated finish. The cylinder face comes in a zinc-plated finish. The lock is easy to install with a few simple tools. Please refer to the line art drawing for dimensions and compare with your needs before purchasing.


Joe
Reviewed in the United States on February 17, 2025
Worked as designed although I had to use the internal latch from the old one as none of the included fit. Not a big deal as they were all interchangeable. If it holds up I’ll be happy.
Joe
Reviewed in the United States on February 17, 2025
Worked as designed although I had to use the internal latch from the old one as none of the included fit. Not a big deal as they were all interchangeable. If it holds up I’ll be happy.
Christina wysocki
Reviewed in the United States on January 3, 2024
This lock worked perfectly for my mailbox
Christina wysocki
Reviewed in the United States on January 3, 2024
This lock worked perfectly for my mailbox
Juan V
Reviewed in the United States on April 1, 2024
I want to be able to leave my tools at work but I was worried about the poor lock it had. Well this solved my issue. I was able to take the old lock and install this one with in a few minutes. I loved that it came with a set of latches and that one fit my needs. I tried to pry it open (without damaging the box) and I was not able to get it to budge. Which is exactly what I wanted. The only thing that I didn't like was that it only comes with two keys.
Juan V
Reviewed in the United States on April 1, 2024
I want to be able to leave my tools at work but I was worried about the poor lock it had. Well this solved my issue. I was able to take the old lock and install this one with in a few minutes. I loved that it came with a set of latches and that one fit my needs. I tried to pry it open (without damaging the box) and I was not able to get it to budge. Which is exactly what I wanted. The only thing that I didn't like was that it only comes with two keys.
Forgiven
Reviewed in the United States on November 6, 2023
Good value
Forgiven
Reviewed in the United States on November 6, 2023
Good value
David
Reviewed in the United States on January 11, 2023
It works - but we’ll see how long it lastsI had to oil the cylinder because inserting the key was real hard, roughOil smoothed it some - now waiting to see how long it lasts
David
Reviewed in the United States on January 11, 2023
It works - but we’ll see how long it lastsI had to oil the cylinder because inserting the key was real hard, roughOil smoothed it some - now waiting to see how long it lasts
George W. Hoover
Reviewed in the United States on August 13, 2022
I finally found a replacement mailbox lock that fits the older models. All it takes is one of the levers and they had it. The others I’ve tried at the big box DIY stores didn’t work quite eight but this did.
George W. Hoover
Reviewed in the United States on August 13, 2022
I finally found a replacement mailbox lock that fits the older models. All it takes is one of the levers and they had it. The others I’ve tried at the big box DIY stores didn’t work quite eight but this did.
Tresha
Reviewed in the United States on April 17, 2021
Very easy to install after watching a YouTube video. I did it myself after waiting a whole week for the postman to help. I feel so empowered. Worth the price I paid because I have so many other parts I can use in the future or to help out a neighbor.
Tresha
Reviewed in the United States on April 17, 2021
Very easy to install after watching a YouTube video. I did it myself after waiting a whole week for the postman to help. I feel so empowered. Worth the price I paid because I have so many other parts I can use in the future or to help out a neighbor.
W.E.
Reviewed in the United States on November 17, 2020
I needed to replace my lock because the key was becoming difficult to insert and then would often get stuck once inserted and wouldn't turn to unlock. Sometimes it would take 15 to 20 attempts to get my mailbox open. Also, the duplicate key was lost and the copy I had made at Lowe's didn't work at all. I was nervous about purchasing this after reading reviews of the same and similar products stating that keys weren't going in smoothly and getting stuck on brand new locks, but the post office was going to charge $40 to replace it, so I took a chance on this. I'm happy to report that after a quick and easy installation, the key glides in and turns smoothly with no problems. I chose this lock over others because it had the dust cover and my mailbox is outside and fully exposed. My old lock was engraved with USPS-L-1172C; this lock switched out perfectly.
W.E.
Reviewed in the United States on November 17, 2020
I needed to replace my lock because the key was becoming difficult to insert and then would often get stuck once inserted and wouldn't turn to unlock. Sometimes it would take 15 to 20 attempts to get my mailbox open. Also, the duplicate key was lost and the copy I had made at Lowe's didn't work at all. I was nervous about purchasing this after reading reviews of the same and similar products stating that keys weren't going in smoothly and getting stuck on brand new locks, but the post office was going to charge $40 to replace it, so I took a chance on this. I'm happy to report that after a quick and easy installation, the key glides in and turns smoothly with no problems. I chose this lock over others because it had the dust cover and my mailbox is outside and fully exposed. My old lock was engraved with USPS-L-1172C; this lock switched out perfectly.