Mailbox Lock Replacement for L-1172C C9100 C9200, Fit for USPS CompX National NDCBU CBU Cluster Mailboxes, Apartment Mail Box Latch with C7120 Cam and 3 Keys, 1 Pack

MAILBOX LOCK REPLACEMENT KIT Fit for CompX L-1172C National Mailbox Lock Fit for USPS L-1172C Post Office Mailbox Lock C9100 Fit for CBU Community Mailboxes Fit for NDCBU Neighborhood Centralized Mailboxes Suitable for outdoor upright public or community mailboxes THE FIX FOR LOST KEYS, RUSTY LOCKS & NEW MOVE-INS Whether your key is gone, your lock is seized, or you just moved in and want a fresh start — this kit gets your mailbox back in working order without calling a locksmith or waiting on a property manager. SMOOTH OPERATION, BUILT TO LAST OUTDOORS Pin tumbler cylinder with alloy steel construction and rust-resistant finish. Designed for long-term outdoor exposure — stays smooth through rain, humidity, and daily use. Each lock carries a unique key code so only your key opens your box. COMPLETE INSTALL KIT 1 x C9100 Lock Cylinder, 3 x Keys, 5 x Multi-style Cam Tabs (including C7120) 1 x Mounting Nut INSTALLS IN MINUTES, NO TOOLS REQUIRED Remove old nut and clip → Insert new cylinder → Reattach nut and clip → Test key → Done. No drilling, no special tools, no professional needed. NOTE Confirm your existing lock model is L-1172C or C9100 before purchase.

• Bulk Property Solution: Fit for standard USPS L-1172C mailbox locks, fully compatible with C9100/C9200; the perfect bulk replacement for NDCBU & CBU Cluster Mailboxes; engineered specifically for multi-unit apartment complexes and property-managed community mailboxes
• Commercial-Grade Durability: Made of high-quality zinc alloy with a multi-layer corrosion-resistant nickel finish; withstands long-term outdoor exposure to rain and humidity; ensures smooth turning to prevent key breakage; a reliable fleet-wide upgrade for old, rusty, or jammed mailbox locks
• Multi-Tenant Privacy Protection: Each lock in this 5-pack features an independent "Keyed Different" system to prevent unauthorized access; ensures each resident’s mail and sensitive documents remain secure in shared apartment environments; includes 3 keys per lock for professional key management
• All-in-One Maintenance Kit: Each set includes 1 lock cylinder, 3 unique keys, 5 versatile cam tabs (including C7120), and 1 mounting nut; provides all essential hardware for 5 complete installations; eliminates the need for property staff to source extra parts for different mailbox brands
• Efficient Professional Install: Standard D-shaped cylinder design allows for a quick, straightforward swap without damaging mailbox doors; individually packaged units allow maintenance staff or locksmiths to organize and complete bulk replacements with minimal effort and maximum efficiency