LiftMaster 041B0999 Lock and Key Kit
The LiftMaster 041B0999 is a replacement lock and key kit used on EL2000 telephone entry system enclosures. It provides a serviceable way to secure the access door when the original lock is worn, damaged, missing, or no longer has available keys. For community and commercial entry systems, the lock is more than a convenience item; it helps protect the entry electronics from tampering, moisture exposure, insects, and accidental damage.
This kit is not a universal cam lock for every LiftMaster access product. Cam length, mounting style, and enclosure-door fit can vary between EL2000, EL25, CAPXL, CAPXM, and other access-control families. Match the original lock and parts diagram before ordering. If the door is bent or the latch point is damaged, replacing only the lock may not correct a loose or poorly sealed enclosure.
Compatible With
- LiftMaster EL2000 Series Telephone Entry Systems
- EL2000 enclosure lock service where 041B0999 or 41B999 is shown in the parts diagram
- Select LiftMaster telephone entry lock applications only when documented
- Not automatically interchangeable with 041B0762, CAPXM cam lock kits, gate operator locks, or non-EL2000 enclosures
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | Lock and key kit |
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| Part Number | 041B0999 |
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| Application | Telephone entry enclosure lock replacement |
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| Compatible System Type | LiftMaster EL2000 telephone entry systems |
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| Included Components | Cam lock cylinder, mounting nut, and keys when supplied as current kit packaging |
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| Notes | Cam length and enclosure fit are model-specific |
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Also Known As / Related Part Numbers
- 041B0999
- 41B999
- LIF-041B0999
- EL2000 lock and key kit
- LiftMaster Elite 041B0999 Lock & Key Kit
Technician Note
If the enclosure door is hard to close, do not force the new lock. Check door alignment, hinge wear, gasket compression, and latch engagement. A forced cam lock can bend the cam or damage the entry station door.
Before Ordering
- Confirm the original part number on the removed component or parts diagram matches 041B0999 or a listed related number.
- Check the exact access system model and generation before ordering.
- Inspect the enclosure for water intrusion, corrosion, broken tabs, or damaged cable connections before replacing parts.
- Do not substitute similar-looking electronic, camera, lock, or power parts unless the model documentation confirms the match.
- Disconnect power according to the manufacturer instructions before servicing the enclosure.
Professional Advisory
Access control equipment may involve low-voltage wiring, locks, network connections, or power supplies inside a live enclosure. If the system has water intrusion, damaged wiring, unsafe gate movement, or repeated electrical failures, have the installation inspected by a qualified gate or access control technician.
Product Q&A
What system is 041B0999 commonly used on?
It is commonly associated with LiftMaster EL2000 series telephone entry systems.
Does this kit include keys?
Lock and key kits are typically supplied with matching keys, but current kit contents should be confirmed at the time of ordering.
Can I use 041B0999 instead of 041B0762?
Do not assume they interchange. Match the enclosure model, cam style, and parts diagram before ordering.
Why is a working enclosure lock important?
It helps protect boards, wiring, and entry components from tampering, weather, and accidental damage.
What if the new lock does not line up?
Inspect the door, hinge, latch point, and gasket. A bent enclosure may need correction before the lock will seat properly.
