Mailbox Lock for C9100, L-1172C 3 Keys Nickel Finish | Replaces L-1172C, Fits C9100 4C CBU Mailboxes, Nickel Plated Zinc Alloy, 3 Keyed Alike Keys, 5-Min Quick Install

Upgrade your mailbox lock replacement to improve your mailbox security. replace the L-1172C National Mailbox Lock C9100, providing a secure solution for your mailbox. Whether you need to replace your residential or commercial mailbox, our locks are perfect for your needs. 1.This replacement lock works with all models of mailboxes and is compatible with most standard mailbox locks on the market. 2.Never worry about lost mailbox keys or damaged locks again! Each lock comes with three keys, allowing you to have a spare or share the key with someone you can trust. 3.This mailbox lock replacement is made of sturdy materials that can withstand harsh weather conditions and daily wear and tear for durability. Its smooth operation ensures that your mailbox opens and closes with ease for easy access to your mail. 4.Replacement mailbox locks are all essential items for maintaining the security and functionality of your mailbox. 5.Each mailbox lock includes complete accessories for easy replacement or installation without the need to purchase additional accessories and professional locksmiths. Whether you're a homeowner, property manager, or business owner, a replacement mailbox lock is a must-have item for maintaining the security and functionality of your mailbox. Don't wait until your mailbox locks fail or become damaged. Upgrade to a mailbox lock replacement today for peace of mind knowing your mail is safe and secure.

• Exact Compatibility: Replaces part number L-1172C (USPS-L-1172C). Compatible with National C9100 pin tumbler mailbox locks, fits standard STD-4C, CBU and pedestal-mounted cluster mailboxes. Package includes 1 lock cylinder and 3 keyed-alike keys for daily use and backup.
• Restores Secure Mail Access: Fixes common issues like jammed lock cylinder, lost keys, worn tumblers, broken lock housing and unreliable locking. Restores smooth key insertion and stable locking performance to protect mail from unauthorized access.
• Precision Spec Match: Built to USPS standard form factor with 90-degree clockwise rotation. Matches mounting dimensions perfectly, seats firmly in the mailbox panel with no wobbling or misalignment after installation.
• Heavy-Duty Weatherproof Build: Made with high-strength zinc alloy with a polished nickel finish. Resists rust, corrosion and outdoor weather damage, offers anti-pry structural design for long-lasting reliable use in exterior residential and community mailboxes.
• Straightforward Installation: Direct drop-in replacement with no drilling or modifications required. Most property owners can complete the full installation in under 5 minutes with a basic wrench, no professional locksmith needed.