--- product_id: 304342750 title: "Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation" brand: "prime-line" price: "223 kr" currency: NOK in_stock: true reviews_count: 5 category: "Prime Line" url: https://www.desertcart.no/products/304342750-prime-line-s-4140-mailbox-lock-replacement-multipurpose-mailbox-lock store_origin: NO region: Norway --- # 5-pin tumbler lock for enhanced security 90º counter-clockwise rotation for smooth operation Includes 5 zinc-plated steel cams & brass pins Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation **Brand:** prime-line **Price:** 223 kr **Availability:** ✅ In Stock ## Summary > 🔒 Upgrade your mailbox security with style and confidence! ## Quick Answers - **What is this?** Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation by prime-line - **How much does it cost?** 223 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/304342750-prime-line-s-4140-mailbox-lock-replacement-multipurpose-mailbox-lock) ## Best For - prime-line enthusiasts ## Why This Product - Trusted prime-line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Operation:** Smooth 90º counter-clockwise rotation designed for quick, reliable access - • **Smart Security Locking:** Key cannot be removed when unlocked, preventing accidental mailbox exposure - • **Complete Replacement Kit:** Includes 2 keys, 5 cams, brass pins & locking clip for hassle-free installation - • **Universal Fit for Top Brands:** Seamlessly replaces locks on American Device, Auth-Florence, Bommer & Miami Carey mailboxes - • **Built to Last with Premium Materials:** Diecast body with nickel-plated finish ensures durability and corrosion resistance ## Overview The Prime-Line S 4140 is a durable, multipurpose 5-pin tumbler mailbox lock featuring a nickel-plated diecast finish and a 90º counter-clockwise rotation. Compatible with multiple major mailbox brands, it includes a comprehensive kit with keys, cams, pins, and locking clip. Its smart design prevents key removal when unlocked, ensuring your mailbox stays secure every time. ## Description Easily replace a broken or lost mailbox lock with our multipurpose replacement mailbox lock. Installation is quick and easy and the lock works on a variety of brands, including: American Device, Auth-Florence, Bommer, and Miami Carey. Additionally, this replacement mailbox lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key in the lock, ensuring the mailbox is locked every time it is used. The replacement lock includes a total of 5 zinc plated steel cams, brass pins, a spring steel locking clip and 2 keys. It is made of diecast with a nickel plate finish and a counter-clockwise rotation to open. Be sure to view the manufacturer’s How-To Installation Video also linked on this page. Review: Fixed my mailbox - The lock on our mailbox started to get "sticky" - hard to open. So after examining pictures of locks on desertcart, I chose this one as likely to fit. It fit the hole in the mailbox door perfectly. I ended up using the clamp/clip from the old lock, however. This gives you a multitude of choices for the locking "bar" and one of them was a perfect match for our mailbox. So if it looks and measures like it should fit yours, you can probably make it work. Review: Serrure de boîte à mal - Très bonne serrure de boîte a mal très fiable et reçus dans un délai très vite Merci ## Features - REPLACEMENT LOCK – The S 4140 multipurpose replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. This is a 5-pin tumbler lock..Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit - WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works for several brands of mailboxes, including: American Device, Auth-Florence, Bommer, and Miami Carey. - 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. - DURABLE, STRONG CONSTRUCTION – Made of diecast with a nickel-plated face, this replacement lock is strong and durable, sure to last the test of time..For all dimensional information please refer to the line art and compare to your needs before purchasing ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000B4N0PC | | Additional Features | Keyless | | Brand | PRIME-LINE | | Brand Name | PRIME-LINE | | Color | Nickel | | Control Method | Remote | | Controller Type | Hand Control | | Customer Reviews | 4.4 out of 5 stars 4,142 Reviews | | Finish Types | Nickel-plated,Nickel | | Global Trade Identification Number | 00049793041401 | | Included Components | 2 keys, lock and fasteners | | Item Dimensions | 32 x 97 x 124 millimeters | | Item Type Name | Mailbox lock | | Item Weight | 98 g | | Item dimensions L x W x H | 32 x 97 x 124 millimeters | | Lock Type | Key Lock | | Lock type | Key Lock | | Manufacturer | Prime-Line Products | | Manufacturer Part Number | S 4140 | | Material | Diecast / Steel | | Material Type | Diecast / Steel | | Model Name | Mailbox Lock, 5 Cam, Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise, 90 Degree Rotation | | Model Number | S 4140 | | Number of Items | 1 | | Number of Pieces | 1 | | Recommended Uses For Product | Security | | Recommended uses for product | Security | | Shape | Round | | Special features | Keyless | | Style Name | Mailbox Lock | | UPC | 049793041401 | | Unit Count | 1 Count | ## Product Details - **Brand:** PRIME-LINE - **Item dimensions L x W x H:** 32 x 97 x 124 millimeters - **Lock type:** Key Lock - **Material:** Diecast / Steel - **Special features:** Keyless ## Images ![Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation - Image 1](https://m.media-amazon.com/images/I/61+SGc1drEL.jpg) ![Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation - Image 2](https://m.media-amazon.com/images/I/71jXZ3rgLyL.jpg) ![Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation - Image 3](https://m.media-amazon.com/images/I/61YzHdErutL.jpg) ![Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation - Image 4](https://m.media-amazon.com/images/I/61Fo5YGWKxL.jpg) ![Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish, ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation - Image 5](https://m.media-amazon.com/images/I/71TAcof-yFL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed my mailbox *by A***T on 7 June 2024* The lock on our mailbox started to get "sticky" - hard to open. So after examining pictures of locks on Amazon, I chose this one as likely to fit. It fit the hole in the mailbox door perfectly. I ended up using the clamp/clip from the old lock, however. This gives you a multitude of choices for the locking "bar" and one of them was a perfect match for our mailbox. So if it looks and measures like it should fit yours, you can probably make it work. ### ⭐⭐⭐⭐⭐ Serrure de boîte à mal *by Y***E on 18 March 2026* Très bonne serrure de boîte a mal très fiable et reçus dans un délai très vite Merci ### ⭐⭐⭐⭐⭐ Worked as intended for mail box. *by C***L on 1 June 2026* Worked as intended for mail box. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/304342750-prime-line-s-4140-mailbox-lock-replacement-multipurpose-mailbox-lock](https://www.desertcart.no/products/304342750-prime-line-s-4140-mailbox-lock-replacement-multipurpose-mailbox-lock) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-19*