LiftMaster K80-50142 Lock & Key Set – Q084 Replacement

Lock and Key Replacement Kit for LiftMaster RSW12V and HCTDCU Operators

The LiftMaster K80-50142 is a genuine lock and key replacement kit designed for use with RSW12V swing gate operators and HCTDCU overhead gate systems. Also known as part number Q084, this factory-original kit restores secure enclosure access and is ideal for replacing lost or damaged keys. Built to LiftMaster specifications, it ensures a proper fit for cabinet locks and helps maintain tamper-resistant access to internal controls.

Also referred to as LiftMaster part number Q084. Please consult your manual or parts diagram before ordering to confirm compatibility.

Key Features

• OEM lock and key kit – Secures LiftMaster gate and overhead operator enclosures
• Compatible with swing and overhead models – Designed for RSW12V and HCTDCU systems
• Includes lock and matching key(s) – Restores secure access to equipment cabinets
• Direct replacement – No modifications needed; installs in original lock location
• Prevents unauthorized access – Maintains system security and hardware protection

Technical Specifications

• Part Number: K80-50142
• Also Known As: Q084
• Component Type: Lock and key set
• Compatible Models: LiftMaster RSW12V, HCTDCU
• Included: Lock cylinder and matching key(s)
• Installation: Direct-fit OEM replacement

Conclusion

The LiftMaster K80-50142 Lock and Key Set is an essential replacement part for maintaining enclosure security on RSW12V swing and HCTDCU overhead gate operators. With OEM-grade fit and finish, this kit ensures proper locking functionality and prevents unauthorized access to sensitive control components.